test wasm component model

Refactor to monorepo structure with extension and plugin-sdk packages
Add serve:test script for local test page server
2026-01-09 13:08:04 -05:00 · 2025-10-01 19:03:39 +08:00 · 2025-09-30 19:00:08 +08:00 · 2025-09-30 18:42:22 +08:00 · 2025-09-30 05:18:45 +08:00 · 2025-09-30 05:06:39 +08:00
142 changed files with 28277 additions and 12149 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,11 @@ build
 tlsn/
 zip
 .vscode
+.claude
+coverage
+**/dist
+
+# Plugin SDK demo artifacts
+packages/plugin-sdk/browser/
+packages/plugin-sdk/hello.component.wasm
+packages/plugin-sdk/test.html
--- a/README.md
+++ b/README.md
@@ -7,9 +7,13 @@
 [actions-badge]: https://github.com/tlsnotary/tlsn-extension/actions/workflows/build.yaml/badge.svg
 [actions-url]: https://github.com/tlsnotary/tlsn-extension/actions?query=workflow%3Abuild+branch%3Amain++

-<img src="src/assets/img/icon-128.png" width="64"/>
+<img src="packages/extension/src/assets/img/icon-128.png" width="64"/>

-# Chrome Extension (MV3) for TLSNotary
+# TLSN Extension Monorepo
+
+This repository contains:
+- **extension**: Chrome Extension (MV3) for TLSNotary
+- **plugin-sdk**: SDK for developing WASM plugins

 > [!IMPORTANT]
 > ⚠️ When running the extension against a [notary server](https://github.com/tlsnotary/tlsn/tree/main/crates/notary/server), please ensure that the server's version is the same as the version of this extension
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,97 +1,25 @@
 {
-  "name": "tlsn-extension",
-  "version": "0.1.0.1200",
+  "name": "tlsn-monorepo",
+  "version": "0.1.0",
+  "private": true,
+  "description": "TLSN Extension monorepo with plugin SDK",
  "license": "MIT",
  "repository": {
    "type": "git",
    "url": "https://github.com/tlsnotary/tlsn-extension.git"
  },
+  "workspaces": [
+    "packages/*"
+  ],
  "scripts": {
-    "clone:tlsn": "bash ./utils/download-tlsn.sh",
-    "build": "NODE_ENV=production node utils/build.js",
-    "build:webpack": "NODE_ENV=production webpack --config webpack.config.js",
-    "websockify": "docker run -it --rm -p 55688:80 -v $(pwd):/app novnc/websockify 80 --target-config /app/websockify_config",
-    "dev": "NODE_ENV=development node utils/webserver.js",
-    "lint": "eslint .",
-    "lint:fix": "eslint . --fix"
+    "build": "npm run build --workspace=extension",
+    "build:all": "npm run build --workspaces",
+    "dev": "npm run dev --workspace=extension",
+    "lint": "npm run lint --workspaces",
+    "lint:fix": "npm run lint:fix --workspaces",
+    "test": "npm run test --workspaces",
+    "serve:test": "npm run serve:test --workspace=extension",
+    "clean": "rm -rf packages/*/node_modules packages/*/dist packages/*/build node_modules"
  },
-  "dependencies": {
-    "@extism/extism": "^2.0.0-rc11",
-    "@fortawesome/fontawesome-free": "^6.4.2",
-    "async-mutex": "^0.4.0",
-    "buffer": "^6.0.3",
-    "charwise": "^3.0.1",
-    "classnames": "^2.3.2",
-    "comlink": "^4.4.1",
-    "copy-to-clipboard": "^3.3.3",
-    "dayjs": "^1.11.13",
-    "fast-deep-equal": "^3.1.3",
-    "fuse.js": "^6.6.2",
-    "http-parser-js": "^0.5.9",
-    "level": "^8.0.0",
-    "minimatch": "^9.0.4",
-    "node-cache": "^5.1.2",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
-    "react-redux": "^8.1.2",
-    "react-router": "^6.15.0",
-    "react-router-dom": "^6.15.0",
-    "redux": "^4.2.1",
-    "redux-logger": "^3.0.6",
-    "redux-thunk": "^2.4.2",
-    "tailwindcss": "^3.3.3",
-    "tlsn-js": "0.1.0-alpha.12.0"
-  },
-  "devDependencies": {
-    "@babel/core": "^7.20.12",
-    "@babel/plugin-proposal-class-properties": "^7.18.6",
-    "@babel/preset-env": "^7.20.2",
-    "@babel/preset-react": "^7.18.6",
-    "@pmmmwh/react-refresh-webpack-plugin": "^0.5.10",
-    "@types/chrome": "^0.0.202",
-    "@types/node": "^20.4.10",
-    "@types/react": "^18.0.26",
-    "@types/react-dom": "^18.0.10",
-    "@types/react-router-dom": "^5.3.3",
-    "@types/redux-logger": "^3.0.9",
-    "@types/webextension-polyfill": "^0.10.7",
-    "babel-eslint": "^10.1.0",
-    "babel-loader": "^9.1.2",
-    "babel-preset-react-app": "^10.0.1",
-    "clean-webpack-plugin": "^4.0.0",
-    "copy-webpack-plugin": "^11.0.0",
-    "css-loader": "^6.7.3",
-    "eslint": "^8.31.0",
-    "eslint-config-prettier": "^9.0.0",
-    "eslint-config-react-app": "^7.0.1",
-    "eslint-plugin-flowtype": "^8.0.3",
-    "eslint-plugin-import": "^2.27.4",
-    "eslint-plugin-jsx-a11y": "^6.7.1",
-    "eslint-plugin-prettier": "^5.0.0",
-    "eslint-plugin-react": "^7.32.0",
-    "eslint-plugin-react-hooks": "^4.6.0",
-    "file-loader": "^6.2.0",
-    "fs-extra": "^11.1.0",
-    "html-loader": "^4.2.0",
-    "html-webpack-plugin": "^5.5.0",
-    "postcss-loader": "^7.3.3",
-    "postcss-preset-env": "^9.1.1",
-    "prettier": "^3.0.2",
-    "react-refresh": "^0.14.0",
-    "react-refresh-typescript": "^2.0.7",
-    "sass": "^1.57.1",
-    "sass-loader": "^13.2.0",
-    "source-map-loader": "^3.0.1",
-    "style-loader": "^3.3.1",
-    "terser-webpack-plugin": "^5.3.6",
-    "ts-loader": "^9.4.2",
-    "type-fest": "^3.5.2",
-    "typescript": "^4.9.4",
-    "webextension-polyfill": "^0.10.0",
-    "webpack": "^5.75.0",
-    "webpack-cli": "^4.10.0",
-    "webpack-dev-server": "^4.11.1",
-    "webpack-ext-reloader": "^1.1.12",
-    "zip-webpack-plugin": "^4.0.1"
-  }
-}
+  "devDependencies": {}
+}
--- a/packages/extension/.babelrc
+++ b/packages/extension/.babelrc
--- a/packages/extension/.eslintrc
+++ b/packages/extension/.eslintrc
--- a/packages/extension/.prettierignore
+++ b/packages/extension/.prettierignore
--- a/packages/extension/.prettierrc.json
+++ b/packages/extension/.prettierrc.json
--- a/packages/extension/CLAUDE.md
+++ b/packages/extension/CLAUDE.md
@@ -0,0 +1,308 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+### Development
+- `npm install` - Install dependencies
+- `npm run dev` - Start webpack dev server with hot reload on port 3000 (default)
+- `npm run build` - Build extension (uses NODE_ENV from utils/build.js, defaults to production)
+- `npm run build:webpack` - Direct webpack build with production mode
+- `npm run lint` - Run ESLint to check code quality
+- `npm run lint:fix` - Run ESLint with auto-fix for issues
+
+## TLSNotary Extension
+
+This is a Chrome Extension (Manifest V3) for TLSNotary, enabling secure notarization of TLS data. The extension was recently refactored (commit 92ecb55) to a minimal boilerplate, with TLSN overlay functionality being incrementally added back.
+
+**Important**: The extension must match the version of the notary server it connects to.
+
+## Architecture Overview
+
+### Extension Entry Points
+The extension has 5 main entry points defined in `webpack.config.js`:
+
+#### 1. **Background Service Worker** (`src/entries/Background/index.ts`)
+Core responsibilities:
+- **TLSN Window Management**: Creates popup windows for TLSN operations, tracks window/tab IDs
+- **Request Interception**: Uses `webRequest.onBeforeRequest` API to intercept all HTTP requests from TLSN windows
+- **Request Storage**: Maintains in-memory array of intercepted requests (`tlsnRequests`)
+- **Message Routing**: Forwards messages between content scripts, popup, and injected page scripts
+- **Offscreen Document Management**: Creates offscreen documents for background DOM operations (Chrome 109+)
+- Uses `webextension-polyfill` for cross-browser compatibility
+
+Key message handlers:
+- `PING` → `PONG` (connectivity test)
+- `TLSN_CONTENT_TO_EXTENSION` → Opens new popup window, tracks requests
+- `CONTENT_SCRIPT_READY` → Confirms content script loaded
+
+#### 2. **Content Script** (`src/entries/Content/index.ts`)
+Injected into all HTTP/HTTPS pages via manifest. Responsibilities:
+- **Script Injection**: Injects `content.bundle.js` into page context to expose page-accessible API
+- **TLSN Overlay Management**: Creates/updates full-screen overlay showing intercepted requests
+- **Message Bridge**: Bridges messages between page scripts and extension background
+- **Request Display**: Real-time updates of intercepted requests in overlay UI
+
+Message handlers:
+- `GET_PAGE_INFO` → Returns page title, URL, domain
+- `SHOW_TLSN_OVERLAY` → Creates overlay with initial requests
+- `UPDATE_TLSN_REQUESTS` → Updates overlay with new requests
+- `HIDE_TLSN_OVERLAY` → Removes overlay and clears state
+
+Window message handler:
+- Listens for `TLSN_CONTENT_SCRIPT_MESSAGE` from page scripts
+- Forwards to background via `TLSN_CONTENT_TO_EXTENSION`
+
+#### 3. **Content Module** (`src/entries/Content/content.ts`)
+Injected script running in page context (not content script context):
+- **Page API**: Exposes `window.extensionAPI` object to web pages
+- **Message Bridge**: Provides `sendMessage()` method that posts messages via `window.postMessage`
+- **Lifecycle Event**: Dispatches `extension_loaded` custom event when ready
+- **Web Accessible Resource**: Listed in manifest's `web_accessible_resources`
+
+Page API usage:
+```javascript
+window.extensionAPI.sendMessage({ action: 'startTLSN' });
+window.addEventListener('extension_loaded', () => { /* ready */ });
+```
+
+#### 4. **Popup UI** (`src/entries/Popup/index.tsx`)
+React-based extension popup:
+- **Simple Interface**: "Hello World" boilerplate with test button
+- **Redux Integration**: Connected to Redux store via `react-redux`
+- **Message Sending**: Can send messages to background script
+- **Styling**: Uses Tailwind CSS with custom button/input classes
+- Entry point: `popup.html` (400x300px default size)
+
+#### 5. **Offscreen Document** (`src/entries/Offscreen/index.tsx`)
+Isolated React component for background processing:
+- **Purpose**: Handles DOM operations unavailable in service workers
+- **Message Handling**: Listens for `PROCESS_DATA` messages (example implementation)
+- **Lifecycle**: Created dynamically by background script, reused if exists
+- Entry point: `offscreen.html`
+
+### State Management
+Redux store located in `src/reducers/index.tsx`:
+- **App State Interface**: `{ message: string, count: number }`
+- **Action Creators**:
+  - `setMessage(message: string)` - Updates message state
+  - `incrementCount()` - Increments counter
+- **Store Configuration** (`src/utils/store.ts`):
+  - Development: Uses `redux-thunk` + `redux-logger` middleware
+  - Production: Uses `redux-thunk` only
+- **Type Safety**: Exports `RootState` and `AppRootState` types
+
+### Message Passing Architecture
+
+**Page → Extension Flow**:
+```
+Page (window.postMessage)
+  ↓
+Content Script (window.addEventListener('message'))
+  ↓
+Background (browser.runtime.sendMessage)
+```
+
+**Extension → Page Flow**:
+```
+Background (browser.tabs.sendMessage)
+  ↓
+Content Script (browser.runtime.onMessage)
+  ↓
+Page DOM manipulation (overlay, etc.)
+```
+
+**Security**: Content script only accepts messages from same origin (`event.origin === window.location.origin`)
+
+### TLSN Overlay Feature
+
+The overlay is a full-screen modal showing intercepted requests:
+- **Design**: Dark gradient background (rgba(0,0,0,0.85)) with glassmorphic message box
+- **Content**:
+  - Header: "TLSN Plugin In Progress" with gradient text
+  - Request list: Scrollable container showing METHOD + URL for each request
+  - Request count: Displayed in header
+- **Styling**: Inline CSS with animations (fadeInScale), custom scrollbar styling
+- **Updates**: Real-time updates as new requests are intercepted
+- **Lifecycle**: Created when TLSN window opens, updated via background messages, cleared on window close
+
+### Build Configuration
+
+**Webpack 5 Setup** (`webpack.config.js`):
+- **Entry Points**: popup, background, contentScript, content, offscreen
+- **Output**: `build/` directory with `[name].bundle.js` pattern
+- **Loaders**:
+  - `ts-loader` - TypeScript compilation (transpileOnly in dev)
+  - `babel-loader` - JavaScript transpilation with React Refresh
+  - `style-loader` + `css-loader` + `postcss-loader` + `sass-loader` - Styling pipeline
+  - `html-loader` - HTML templates
+  - `asset/resource` - File assets (images, fonts)
+- **Plugins**:
+  - `ReactRefreshWebpackPlugin` - Hot module replacement (dev only)
+  - `CleanWebpackPlugin` - Cleans build directory
+  - `CopyWebpackPlugin` - Copies manifest, icons, CSS files
+  - `HtmlWebpackPlugin` - Generates popup.html and offscreen.html
+  - `TerserPlugin` - Code minification (production only)
+- **Dev Server** (`utils/webserver.js`):
+  - Port: 3000 (configurable via `PORT` env var)
+  - Hot reload enabled with `webpack/hot/dev-server`
+  - Writes to disk for Chrome to load (`writeToDisk: true`)
+  - WebSocket transport for HMR
+
+**Production Build** (`utils/build.js`):
+- Adds `ZipPlugin` to create `tlsn-extension-{version}.zip` in `zip/` directory
+- Uses package.json version for naming
+- Exits with code 1 on errors or warnings
+
+### Extension Permissions
+
+Defined in `src/manifest.json`:
+- `offscreen` - Create offscreen documents for background processing
+- `webRequest` - Intercept HTTP/HTTPS requests
+- `storage` - Persistent local storage
+- `activeTab` - Access active tab information
+- `tabs` - Tab management (create, query, update)
+- `windows` - Window management (create, track, remove)
+- `host_permissions: ["<all_urls>"]` - Access all URLs for request interception
+- `content_scripts` - Inject into all HTTP/HTTPS pages
+- `web_accessible_resources` - Make content.bundle.js, CSS, and icons accessible to pages
+- `content_security_policy` - Allow WASM execution (`wasm-unsafe-eval`)
+
+### TypeScript Configuration
+
+**tsconfig.json**:
+- Target: `esnext`
+- Module: `esnext` with Node resolution
+- Strict mode enabled
+- JSX: React (not React 17+ automatic runtime)
+- Includes: `src/` only
+- Excludes: `build/`, `node_modules/`
+- Types: `chrome` (for Chrome extension APIs)
+
+**Type Declarations**:
+- `src/global.d.ts` - Declares PNG module types
+- Uses `@types/chrome`, `@types/webextension-polyfill`, `@types/react`, etc.
+
+### Styling
+
+**Tailwind CSS**:
+- Configuration: `tailwind.config.js`
+- Content: Scans all `src/**/*.{js,jsx,ts,tsx}`
+- Custom theme: Primary color `#243f5f`
+- PostCSS pipeline with `postcss-preset-env`
+
+**SCSS**:
+- FontAwesome integration (all icon sets: brands, solid, regular)
+- Custom utility classes: `.button`, `.input`, `.select`, `.textarea`
+- BEM-style modifiers: `.button--primary`
+- Tailwind @apply directives mixed with custom styles
+
+**Popup Dimensions**:
+- Default: 480x600px (set in index.scss body styles)
+- Customizable via inline styles or props
+
+## Development Workflow
+
+1. **Initial Setup**:
+   ```bash
+   npm install  # Requires Node.js >= 18
+   ```
+
+2. **Development Mode**:
+   ```bash
+   npm run dev  # Starts webpack-dev-server on port 3000
+   ```
+   - Hot module replacement enabled
+   - Files written to `build/` directory
+   - Source maps: `cheap-module-source-map`
+
+3. **Load Extension in Chrome**:
+   - Navigate to `chrome://extensions/`
+   - Enable "Developer mode" toggle
+   - Click "Load unpacked"
+   - Select the `build/` folder
+   - Extension auto-reloads on file changes (requires manual refresh for manifest changes)
+
+4. **Testing TLSN Functionality**:
+   - Trigger `TLSN_CONTENT_TO_EXTENSION` message from a page using `window.extensionAPI.sendMessage()`
+   - Background script opens popup window to x.com
+   - All requests in that window are intercepted and displayed in overlay
+
+5. **Production Build**:
+   ```bash
+   NODE_ENV=production npm run build  # Creates build/ and zip/
+   ```
+   - Minified output with Terser
+   - No source maps
+   - Creates versioned zip file for Chrome Web Store submission
+
+6. **Linting**:
+   ```bash
+   npm run lint      # Check for issues
+   npm run lint:fix  # Auto-fix issues
+   ```
+
+## Known Issues & Legacy Code
+
+⚠️ **Legacy Code Warning**: `src/entries/utils.ts` contains imports from non-existent files:
+- `Background/rpc.ts` (removed in refactor)
+- `SidePanel/types.ts` (removed in refactor)
+- Functions: `pushToRedux()`, `openSidePanel()`, `waitForEvent()`
+- **Status**: Dead code, not used by current entry points
+- **Action**: Remove this file or refactor if functionality needed
+
+## Websockify Integration
+
+Used for WebSocket proxying of TLS connections:
+
+**Build Websockify Docker Image**:
+```bash
+git clone https://github.com/novnc/websockify && cd websockify
+./docker/build.sh
+```
+
+**Run Websockify**:
+```bash
+# For x.com (Twitter)
+docker run -it --rm -p 55688:80 novnc/websockify 80 api.x.com:443
+
+# For Twitter (alternative)
+docker run -it --rm -p 55688:80 novnc/websockify 80 api.twitter.com:443
+```
+
+Purpose: Proxies HTTPS connections through WebSocket for browser-based TLS operations.
+
+## Code Quality
+
+**ESLint Configuration** (`.eslintrc`):
+- Extends: `prettier`, `@typescript-eslint/recommended`
+- Parser: `@typescript-eslint/parser`
+- Rules:
+  - `prettier/prettier`: error
+  - `@typescript-eslint/no-explicit-any`: warning
+  - `@typescript-eslint/no-var-requires`: off (allows require in webpack config)
+  - `@typescript-eslint/ban-ts-comment`: off
+  - `no-undef`: error
+  - `padding-line-between-statements`: error
+- Environment: `webextensions`, `browser`, `node`, `es6`
+- Ignores: `node_modules`, `zip`, `build`, `wasm`, `tlsn`, `webpack.config.js`
+
+**Prettier Configuration** (`.prettierrc.json`):
+- Single quotes, trailing commas, 2-space indentation
+- Ignore: `.prettierignore` (not in repo, likely default ignores)
+
+## Publishing
+
+After building:
+1. Test extension thoroughly in Chrome
+2. Create production build: `NODE_ENV=production npm run build`
+3. Upload `zip/tlsn-extension-{version}.zip` to Chrome Web Store
+4. Follow [Chrome Web Store publishing guide](https://developer.chrome.com/webstore/publish)
+
+## Resources
+
+- [Webpack Documentation](https://webpack.js.org/concepts/)
+- [Chrome Extension Docs](https://developer.chrome.com/docs/extensions/)
+- [Manifest V3 Migration Guide](https://developer.chrome.com/docs/extensions/mv3/intro/)
+- [webextension-polyfill](https://github.com/mozilla/webextension-polyfill)
--- a/packages/extension/cog.toml
+++ b/packages/extension/cog.toml
--- a/packages/extension/package-lock.json
+++ b/packages/extension/package-lock.json
--- a/packages/extension/package.json
+++ b/packages/extension/package.json
@@ -0,0 +1,94 @@
+{
+  "name": "extension",
+  "version": "0.1.0",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/tlsnotary/tlsn-extension.git",
+    "directory": "packages/extension"
+  },
+  "scripts": {
+    "build": "NODE_ENV=production node utils/build.js",
+    "build:webpack": "NODE_ENV=production webpack --config webpack.config.js",
+    "dev": "NODE_ENV=development node utils/webserver.js",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:ui": "vitest --ui",
+    "test:coverage": "vitest run --coverage",
+    "serve:test": "python3 -m http.server 8081 --directory ./tests/integration"
+  },
+  "dependencies": {
+    "@fortawesome/fontawesome-free": "^6.4.2",
+    "classnames": "^2.3.2",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-redux": "^8.1.2",
+    "react-router": "^6.15.0",
+    "react-router-dom": "^6.15.0",
+    "redux": "^4.2.1",
+    "redux-logger": "^3.0.6",
+    "redux-thunk": "^2.4.2",
+    "tailwindcss": "^3.3.3"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.20.12",
+    "@babel/plugin-proposal-class-properties": "^7.18.6",
+    "@babel/preset-env": "^7.20.2",
+    "@babel/preset-react": "^7.18.6",
+    "@pmmmwh/react-refresh-webpack-plugin": "^0.5.10",
+    "@types/chrome": "^0.0.202",
+    "@types/node": "^20.4.10",
+    "@types/react": "^18.0.26",
+    "@types/react-dom": "^18.0.10",
+    "@types/react-router-dom": "^5.3.3",
+    "@types/redux-logger": "^3.0.9",
+    "@types/uuid": "^10.0.0",
+    "@types/webextension-polyfill": "^0.10.7",
+    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/ui": "^3.2.4",
+    "babel-eslint": "^10.1.0",
+    "babel-loader": "^9.1.2",
+    "babel-preset-react-app": "^10.0.1",
+    "clean-webpack-plugin": "^4.0.0",
+    "copy-webpack-plugin": "^11.0.0",
+    "css-loader": "^6.7.3",
+    "eslint": "^8.31.0",
+    "eslint-config-prettier": "^9.0.0",
+    "eslint-config-react-app": "^7.0.1",
+    "eslint-plugin-flowtype": "^8.0.3",
+    "eslint-plugin-import": "^2.27.4",
+    "eslint-plugin-jsx-a11y": "^6.7.1",
+    "eslint-plugin-prettier": "^5.0.0",
+    "eslint-plugin-react": "^7.32.0",
+    "eslint-plugin-react-hooks": "^4.6.0",
+    "file-loader": "^6.2.0",
+    "fs-extra": "^11.1.0",
+    "happy-dom": "^19.0.1",
+    "html-loader": "^4.2.0",
+    "html-webpack-plugin": "^5.5.0",
+    "postcss-loader": "^7.3.3",
+    "postcss-preset-env": "^9.1.1",
+    "prettier": "^3.0.2",
+    "react-refresh": "^0.14.0",
+    "react-refresh-typescript": "^2.0.7",
+    "sass": "^1.57.1",
+    "sass-loader": "^13.2.0",
+    "source-map-loader": "^3.0.1",
+    "style-loader": "^3.3.1",
+    "terser-webpack-plugin": "^5.3.6",
+    "ts-loader": "^9.4.2",
+    "type-fest": "^3.5.2",
+    "typescript": "^4.9.4",
+    "uuid": "^13.0.0",
+    "vitest": "^3.2.4",
+    "vitest-chrome": "^0.1.0",
+    "webextension-polyfill": "^0.10.0",
+    "webpack": "^5.75.0",
+    "webpack-cli": "^4.10.0",
+    "webpack-dev-server": "^4.11.1",
+    "webpack-ext-reloader": "^1.1.12",
+    "zip-webpack-plugin": "^4.0.1"
+  }
+}
--- a/packages/extension/postcss.config.js
+++ b/packages/extension/postcss.config.js
--- a/packages/extension/src/assets/img/default-plugin-icon.png
+++ b/packages/extension/src/assets/img/default-plugin-icon.png
--- a/packages/extension/src/assets/img/dot-menu.svg
+++ b/packages/extension/src/assets/img/dot-menu.svg
--- a/packages/extension/src/assets/img/icon-128.png
+++ b/packages/extension/src/assets/img/icon-128.png
--- a/packages/extension/src/assets/img/icon-34.png
+++ b/packages/extension/src/assets/img/icon-34.png
--- a/packages/extension/src/assets/img/logo.svg
+++ b/packages/extension/src/assets/img/logo.svg
--- a/packages/extension/src/assets/img/notarize.png
+++ b/packages/extension/src/assets/img/notarize.png
--- a/packages/extension/src/background/WindowManager.ts
+++ b/packages/extension/src/background/WindowManager.ts
@@ -0,0 +1,452 @@
+/**
+ * WindowManager - Multi-window management for TLSNotary extension
+ *
+ * Manages multiple browser windows with request interception and overlay display.
+ * Each window maintains its own state, request history, and overlay visibility.
+ */
+
+import { v4 as uuidv4 } from 'uuid';
+import browser from 'webextension-polyfill';
+import type {
+  WindowRegistration,
+  InterceptedRequest,
+  ManagedWindow,
+  IWindowManager,
+} from '../types/window-manager';
+import {
+  MAX_MANAGED_WINDOWS,
+  MAX_REQUESTS_PER_WINDOW,
+  OVERLAY_RETRY_DELAY_MS,
+  MAX_OVERLAY_RETRY_ATTEMPTS,
+} from '../constants/limits';
+
+/**
+ * WindowManager implementation
+ *
+ * Provides centralized management for multiple browser windows with:
+ * - Window lifecycle tracking (create, lookup, close)
+ * - Request interception per window
+ * - Overlay visibility control
+ * - Automatic cleanup of closed windows
+ */
+export class WindowManager implements IWindowManager {
+  /**
+   * Internal storage for managed windows
+   * Key: Chrome window ID
+   * Value: ManagedWindow object
+   */
+  private windows: Map<number, ManagedWindow> = new Map();
+
+  /**
+   * Register a new window with the manager
+   *
+   * Creates a ManagedWindow object with UUID, initializes request tracking,
+   * and optionally shows the TLSN overlay.
+   *
+   * @param config - Window registration configuration
+   * @returns Promise resolving to the created ManagedWindow
+   *
+   * @example
+   * ```typescript
+   * const window = await windowManager.registerWindow({
+   *   id: 123,
+   *   tabId: 456,
+   *   url: 'https://example.com',
+   *   showOverlay: true
+   * });
+   * ```
+   */
+  async registerWindow(config: WindowRegistration): Promise<ManagedWindow> {
+    // Check maximum window limit
+    if (this.windows.size >= MAX_MANAGED_WINDOWS) {
+      const error = `Maximum window limit reached (${MAX_MANAGED_WINDOWS}). Currently managing ${this.windows.size} windows. Please close some windows before opening new ones.`;
+      console.error(`[WindowManager] ${error}`);
+      throw new Error(error);
+    }
+
+    const managedWindow: ManagedWindow = {
+      id: config.id,
+      uuid: uuidv4(),
+      tabId: config.tabId,
+      url: config.url,
+      createdAt: new Date(),
+      requests: [],
+      overlayVisible: false,
+      showOverlayWhenReady: config.showOverlay !== false, // Default: true
+    };
+
+    this.windows.set(config.id, managedWindow);
+
+    console.log(
+      `[WindowManager] Window registered: ${managedWindow.uuid} (ID: ${managedWindow.id}, Tab: ${managedWindow.tabId}, showOverlayWhenReady: ${managedWindow.showOverlayWhenReady}) [${this.windows.size}/${MAX_MANAGED_WINDOWS}]`,
+    );
+
+    return managedWindow;
+  }
+
+  /**
+   * Close and cleanup a window
+   *
+   * Hides the overlay if visible and removes the window from tracking.
+   * Does nothing if the window is not found.
+   *
+   * @param windowId - Chrome window ID
+   *
+   * @example
+   * ```typescript
+   * await windowManager.closeWindow(123);
+   * ```
+   */
+  async closeWindow(windowId: number): Promise<void> {
+    const window = this.windows.get(windowId);
+    if (!window) {
+      console.warn(
+        `[WindowManager] Attempted to close non-existent window: ${windowId}`,
+      );
+      return;
+    }
+
+    // Hide overlay before closing
+    if (window.overlayVisible) {
+      await this.hideOverlay(windowId).catch((error) => {
+        console.warn(
+          `[WindowManager] Failed to hide overlay for window ${windowId}:`,
+          error,
+        );
+      });
+    }
+
+    // Remove from tracking
+    this.windows.delete(windowId);
+
+    console.log(
+      `[WindowManager] Window closed: ${window.uuid} (ID: ${window.id})`,
+    );
+  }
+
+  /**
+   * Get a managed window by ID
+   *
+   * @param windowId - Chrome window ID
+   * @returns The ManagedWindow or undefined if not found
+   *
+   * @example
+   * ```typescript
+   * const window = windowManager.getWindow(123);
+   * if (window) {
+   *   console.log(`Window has ${window.requests.length} requests`);
+   * }
+   * ```
+   */
+  getWindow(windowId: number): ManagedWindow | undefined {
+    return this.windows.get(windowId);
+  }
+
+  /**
+   * Get a managed window by tab ID
+   *
+   * Searches through all windows to find one containing the specified tab.
+   * Useful for webRequest listeners that only provide tab IDs.
+   *
+   * @param tabId - Chrome tab ID
+   * @returns The ManagedWindow or undefined if not found
+   *
+   * @example
+   * ```typescript
+   * const window = windowManager.getWindowByTabId(456);
+   * if (window) {
+   *   windowManager.addRequest(window.id, request);
+   * }
+   * ```
+   */
+  getWindowByTabId(tabId: number): ManagedWindow | undefined {
+    for (const window of this.windows.values()) {
+      if (window.tabId === tabId) {
+        return window;
+      }
+    }
+    return undefined;
+  }
+
+  /**
+   * Get all managed windows
+   *
+   * @returns Map of window IDs to ManagedWindow objects (copy)
+   *
+   * @example
+   * ```typescript
+   * const allWindows = windowManager.getAllWindows();
+   * console.log(`Managing ${allWindows.size} windows`);
+   * ```
+   */
+  getAllWindows(): Map<number, ManagedWindow> {
+    return new Map(this.windows);
+  }
+
+  /**
+   * Add an intercepted request to a window
+   *
+   * Appends the request to the window's request array and updates the overlay
+   * if it's currently visible. Logs an error if the window is not found.
+   *
+   * @param windowId - Chrome window ID
+   * @param request - The intercepted request to add
+   *
+   * @example
+   * ```typescript
+   * windowManager.addRequest(123, {
+   *   id: 'req-456',
+   *   method: 'GET',
+   *   url: 'https://example.com/api/data',
+   *   timestamp: Date.now(),
+   *   tabId: 456
+   * });
+   * ```
+   */
+  addRequest(windowId: number, request: InterceptedRequest): void {
+    const window = this.windows.get(windowId);
+    if (!window) {
+      console.error(
+        `[WindowManager] Cannot add request to non-existent window: ${windowId}`,
+      );
+      return;
+    }
+
+    // Add timestamp if not provided
+    if (!request.timestamp) {
+      request.timestamp = Date.now();
+    }
+
+    window.requests.push(request);
+
+    // Enforce request limit per window to prevent unbounded memory growth
+    if (window.requests.length > MAX_REQUESTS_PER_WINDOW) {
+      const removed = window.requests.length - MAX_REQUESTS_PER_WINDOW;
+      window.requests.splice(0, removed);
+      console.warn(
+        `[WindowManager] Request limit reached for window ${windowId}. Removed ${removed} oldest request(s). Current: ${window.requests.length}/${MAX_REQUESTS_PER_WINDOW}`,
+      );
+    }
+
+    console.log(
+      `[WindowManager] Request added to window ${windowId}: ${request.method} ${request.url}`,
+    );
+
+    // Update overlay if visible
+    if (window.overlayVisible) {
+      this.updateOverlay(windowId).catch((error) => {
+        console.warn(
+          `[WindowManager] Failed to update overlay for window ${windowId}:`,
+          error,
+        );
+      });
+    }
+  }
+
+  /**
+   * Get all requests for a window
+   *
+   * @param windowId - Chrome window ID
+   * @returns Array of intercepted requests (empty array if window not found)
+   *
+   * @example
+   * ```typescript
+   * const requests = windowManager.getWindowRequests(123);
+   * console.log(`Window has ${requests.length} requests`);
+   * ```
+   */
+  getWindowRequests(windowId: number): InterceptedRequest[] {
+    const window = this.windows.get(windowId);
+    return window?.requests || [];
+  }
+
+  /**
+   * Show the TLSN overlay in a window
+   *
+   * Sends a message to the content script to display the overlay with
+   * the current list of intercepted requests. Catches and logs errors
+   * if the content script is not ready.
+   *
+   * @param windowId - Chrome window ID
+   *
+   * @example
+   * ```typescript
+   * await windowManager.showOverlay(123);
+   * ```
+   */
+  async showOverlay(windowId: number, retryCount: number = 0): Promise<void> {
+    const window = this.windows.get(windowId);
+    if (!window) {
+      console.error(
+        `[WindowManager] Cannot show overlay for non-existent window: ${windowId}`,
+      );
+      return;
+    }
+
+    try {
+      await browser.tabs.sendMessage(window.tabId, {
+        type: 'SHOW_TLSN_OVERLAY',
+        requests: window.requests,
+      });
+
+      window.overlayVisible = true;
+      window.showOverlayWhenReady = false; // Clear the pending flag
+      console.log(`[WindowManager] Overlay shown for window ${windowId}`);
+    } catch (error) {
+      // Retry if content script not ready
+      if (retryCount < MAX_OVERLAY_RETRY_ATTEMPTS) {
+        console.log(
+          `[WindowManager] Overlay display failed for window ${windowId}, retry ${retryCount + 1}/${MAX_OVERLAY_RETRY_ATTEMPTS} in ${OVERLAY_RETRY_DELAY_MS}ms`,
+        );
+
+        // Wait and retry
+        await new Promise((resolve) => setTimeout(resolve, OVERLAY_RETRY_DELAY_MS));
+
+        // Check if window still exists before retrying
+        if (this.windows.has(windowId)) {
+          return this.showOverlay(windowId, retryCount + 1);
+        } else {
+          console.warn(
+            `[WindowManager] Window ${windowId} closed during retry, aborting overlay display`,
+          );
+        }
+      } else {
+        console.warn(
+          `[WindowManager] Failed to show overlay for window ${windowId} after ${MAX_OVERLAY_RETRY_ATTEMPTS} attempts:`,
+          error,
+        );
+        // Keep showOverlayWhenReady=true so tabs.onUpdated can try again
+      }
+    }
+  }
+
+  /**
+   * Hide the TLSN overlay in a window
+   *
+   * Sends a message to the content script to remove the overlay.
+   * Catches and logs errors if the content script is not available.
+   *
+   * @param windowId - Chrome window ID
+   *
+   * @example
+   * ```typescript
+   * await windowManager.hideOverlay(123);
+   * ```
+   */
+  async hideOverlay(windowId: number): Promise<void> {
+    const window = this.windows.get(windowId);
+    if (!window) {
+      console.error(
+        `[WindowManager] Cannot hide overlay for non-existent window: ${windowId}`,
+      );
+      return;
+    }
+
+    try {
+      await browser.tabs.sendMessage(window.tabId, {
+        type: 'HIDE_TLSN_OVERLAY',
+      });
+
+      window.overlayVisible = false;
+      console.log(`[WindowManager] Overlay hidden for window ${windowId}`);
+    } catch (error) {
+      console.warn(
+        `[WindowManager] Failed to hide overlay for window ${windowId}:`,
+        error,
+      );
+      // Don't throw - window may already be closed
+    }
+  }
+
+  /**
+   * Check if overlay is visible in a window
+   *
+   * @param windowId - Chrome window ID
+   * @returns true if overlay is visible, false otherwise
+   *
+   * @example
+   * ```typescript
+   * if (windowManager.isOverlayVisible(123)) {
+   *   console.log('Overlay is currently displayed');
+   * }
+   * ```
+   */
+  isOverlayVisible(windowId: number): boolean {
+    const window = this.windows.get(windowId);
+    return window?.overlayVisible || false;
+  }
+
+  /**
+   * Update overlay with current requests (private helper)
+   *
+   * Sends an UPDATE_TLSN_REQUESTS message to the content script.
+   *
+   * @param windowId - Chrome window ID
+   */
+  private async updateOverlay(windowId: number): Promise<void> {
+    const window = this.windows.get(windowId);
+    if (!window || !window.overlayVisible) {
+      return;
+    }
+
+    try {
+      await browser.tabs.sendMessage(window.tabId, {
+        type: 'UPDATE_TLSN_REQUESTS',
+        requests: window.requests,
+      });
+
+      console.log(
+        `[WindowManager] Overlay updated for window ${windowId} with ${window.requests.length} requests`,
+      );
+    } catch (error) {
+      console.warn(
+        `[WindowManager] Failed to update overlay for window ${windowId}:`,
+        error,
+      );
+    }
+  }
+
+  /**
+   * Cleanup windows that are no longer valid
+   *
+   * Iterates through all tracked windows and removes any that have been
+   * closed in the browser. This prevents memory leaks and stale state.
+   *
+   * Should be called periodically (e.g., every minute) or when handling
+   * window events.
+   *
+   * @example
+   * ```typescript
+   * // Run cleanup every minute
+   * setInterval(() => {
+   *   windowManager.cleanupInvalidWindows();
+   * }, 60000);
+   * ```
+   */
+  async cleanupInvalidWindows(): Promise<void> {
+    const windowIds = Array.from(this.windows.keys());
+    let cleanedCount = 0;
+
+    for (const windowId of windowIds) {
+      try {
+        // Check if window still exists in browser
+        await browser.windows.get(windowId);
+      } catch (error) {
+        // Window no longer exists, clean it up
+        const window = this.windows.get(windowId);
+        this.windows.delete(windowId);
+        cleanedCount++;
+
+        console.log(
+          `[WindowManager] Cleaned up invalid window: ${window?.uuid} (ID: ${windowId})`,
+        );
+      }
+    }
+
+    if (cleanedCount > 0) {
+      console.log(
+        `[WindowManager] Cleanup complete: ${cleanedCount} window(s) removed`,
+      );
+    }
+  }
+}
--- a/packages/extension/src/constants/limits.ts
+++ b/packages/extension/src/constants/limits.ts
@@ -0,0 +1,65 @@
+/**
+ * Resource limits and constraints for the TLSN extension
+ *
+ * These limits prevent resource exhaustion and ensure good performance.
+ */
+
+/**
+ * Maximum number of managed windows that can be open simultaneously
+ *
+ * This prevents memory exhaustion from opening too many windows.
+ * Each window tracks its own requests and overlay state.
+ *
+ * @default 10
+ */
+export const MAX_MANAGED_WINDOWS = 10;
+
+/**
+ * Maximum number of requests to store per window
+ *
+ * Prevents unbounded memory growth from high-traffic sites.
+ * Older requests are removed when limit is reached.
+ *
+ * @default 1000
+ */
+export const MAX_REQUESTS_PER_WINDOW = 1000;
+
+/**
+ * Timeout for overlay display attempts (milliseconds)
+ *
+ * If overlay cannot be shown within this timeout, stop retrying.
+ * This prevents infinite retry loops if content script never loads.
+ *
+ * @default 5000 (5 seconds)
+ */
+export const OVERLAY_DISPLAY_TIMEOUT_MS = 5000;
+
+/**
+ * Retry delay for overlay display (milliseconds)
+ *
+ * Time to wait between retry attempts when content script isn't ready.
+ *
+ * @default 500 (0.5 seconds)
+ */
+export const OVERLAY_RETRY_DELAY_MS = 500;
+
+/**
+ * Maximum number of retry attempts for overlay display
+ *
+ * Calculated as OVERLAY_DISPLAY_TIMEOUT_MS / OVERLAY_RETRY_DELAY_MS
+ *
+ * @default 10 (5000ms / 500ms)
+ */
+export const MAX_OVERLAY_RETRY_ATTEMPTS = Math.floor(
+  OVERLAY_DISPLAY_TIMEOUT_MS / OVERLAY_RETRY_DELAY_MS,
+);
+
+/**
+ * Interval for periodic cleanup of invalid windows (milliseconds)
+ *
+ * WindowManager periodically checks for windows that have been closed
+ * and removes them from tracking.
+ *
+ * @default 300000 (5 minutes)
+ */
+export const CLEANUP_INTERVAL_MS = 5 * 60 * 1000;
--- a/packages/extension/src/constants/messages.ts
+++ b/packages/extension/src/constants/messages.ts
@@ -0,0 +1,139 @@
+/**
+ * Message type constants for extension communication
+ *
+ * Defines all message types used for communication between:
+ * - Page scripts → Content scripts → Background script
+ * - Background script → Content scripts
+ */
+
+/**
+ * Legacy message types (from existing implementation)
+ */
+export const PING = 'PING';
+export const PONG = 'PONG';
+export const CONTENT_SCRIPT_READY = 'CONTENT_SCRIPT_READY';
+export const GET_PAGE_INFO = 'GET_PAGE_INFO';
+
+/**
+ * TLSN Content Script Messages (legacy)
+ */
+export const TLSN_CONTENT_SCRIPT_MESSAGE = 'TLSN_CONTENT_SCRIPT_MESSAGE';
+export const TLSN_CONTENT_TO_EXTENSION = 'TLSN_CONTENT_TO_EXTENSION';
+
+/**
+ * Window Management Messages
+ */
+
+/**
+ * Sent from content script to background to request opening a new window
+ *
+ * Payload: { url: string, width?: number, height?: number, showOverlay?: boolean }
+ */
+export const OPEN_WINDOW = 'OPEN_WINDOW';
+
+/**
+ * Response from background when window is successfully opened
+ *
+ * Payload: { windowId: number, uuid: string, tabId: number }
+ */
+export const WINDOW_OPENED = 'WINDOW_OPENED';
+
+/**
+ * Response from background when window opening fails
+ *
+ * Payload: { error: string, details?: string }
+ */
+export const WINDOW_ERROR = 'WINDOW_ERROR';
+
+/**
+ * Overlay Control Messages
+ */
+
+/**
+ * Sent from background to content script to show TLSN overlay
+ *
+ * Payload: { requests: InterceptedRequest[] }
+ */
+export const SHOW_TLSN_OVERLAY = 'SHOW_TLSN_OVERLAY';
+
+/**
+ * Sent from background to content script to update overlay with new requests
+ *
+ * Payload: { requests: InterceptedRequest[] }
+ */
+export const UPDATE_TLSN_REQUESTS = 'UPDATE_TLSN_REQUESTS';
+
+/**
+ * Sent from background to content script to hide TLSN overlay
+ *
+ * Payload: none
+ */
+export const HIDE_TLSN_OVERLAY = 'HIDE_TLSN_OVERLAY';
+
+/**
+ * Type definitions for message payloads
+ */
+
+export interface OpenWindowPayload {
+  url: string;
+  width?: number;
+  height?: number;
+  showOverlay?: boolean;
+}
+
+export interface WindowOpenedPayload {
+  windowId: number;
+  uuid: string;
+  tabId: number;
+}
+
+export interface WindowErrorPayload {
+  error: string;
+  details?: string;
+}
+
+export interface OverlayRequestsPayload {
+  requests: Array<{
+    id: string;
+    method: string;
+    url: string;
+    timestamp: number;
+    tabId: number;
+  }>;
+}
+
+/**
+ * Message wrapper types
+ */
+
+export interface OpenWindowMessage {
+  type: typeof OPEN_WINDOW;
+  url: string;
+  width?: number;
+  height?: number;
+  showOverlay?: boolean;
+}
+
+export interface WindowOpenedMessage {
+  type: typeof WINDOW_OPENED;
+  payload: WindowOpenedPayload;
+}
+
+export interface WindowErrorMessage {
+  type: typeof WINDOW_ERROR;
+  payload: WindowErrorPayload;
+}
+
+export interface ShowOverlayMessage {
+  type: typeof SHOW_TLSN_OVERLAY;
+  requests: OverlayRequestsPayload['requests'];
+}
+
+export interface UpdateOverlayMessage {
+  type: typeof UPDATE_TLSN_REQUESTS;
+  requests: OverlayRequestsPayload['requests'];
+}
+
+export interface HideOverlayMessage {
+  type: typeof HIDE_TLSN_OVERLAY;
+}
--- a/packages/extension/src/entries/Background/index.ts
+++ b/packages/extension/src/entries/Background/index.ts
@@ -0,0 +1,279 @@
+import browser from 'webextension-polyfill';
+import { WindowManager } from '../../background/WindowManager';
+import type { InterceptedRequest } from '../../types/window-manager';
+import { validateUrl } from '../../utils/url-validator';
+
+const chrome = global.chrome as any;
+// Basic background script setup
+console.log('Background script loaded');
+
+// Initialize WindowManager for multi-window support
+const windowManager = new WindowManager();
+
+// Handle extension install/update
+browser.runtime.onInstalled.addListener((details) => {
+  console.log('Extension installed/updated:', details.reason);
+});
+
+// Set up webRequest listener to intercept all requests
+browser.webRequest.onBeforeRequest.addListener(
+  (details) => {
+    // Check if this tab belongs to a managed window
+    const managedWindow = windowManager.getWindowByTabId(details.tabId);
+
+    if (managedWindow && details.tabId !== undefined) {
+      const request: InterceptedRequest = {
+        id: `${details.requestId}`,
+        method: details.method,
+        url: details.url,
+        timestamp: Date.now(),
+        tabId: details.tabId,
+      };
+
+      console.log(
+        `[Background] Request intercepted for window ${managedWindow.id}:`,
+        details.method,
+        details.url,
+      );
+
+      // Add request to window's request history
+      windowManager.addRequest(managedWindow.id, request);
+    }
+  },
+  { urls: ['<all_urls>'] },
+  ['requestBody'],
+);
+
+// Listen for window removal
+browser.windows.onRemoved.addListener(async (windowId) => {
+  const managedWindow = windowManager.getWindow(windowId);
+  if (managedWindow) {
+    console.log(
+      `[Background] Managed window closed: ${managedWindow.uuid} (ID: ${windowId})`,
+    );
+    await windowManager.closeWindow(windowId);
+  }
+});
+
+// Listen for tab updates to show overlay when tab is ready (Task 3.4)
+browser.tabs.onUpdated.addListener(async (tabId, changeInfo, tab) => {
+  // Only act when tab becomes complete
+  if (changeInfo.status !== 'complete') {
+    return;
+  }
+
+  // Check if this tab belongs to a managed window
+  const managedWindow = windowManager.getWindowByTabId(tabId);
+  if (!managedWindow) {
+    return;
+  }
+
+  // If overlay should be shown but isn't visible yet, show it now
+  if (managedWindow.showOverlayWhenReady && !managedWindow.overlayVisible) {
+    console.log(
+      `[Background] Tab ${tabId} complete, showing overlay for window ${managedWindow.id}`,
+    );
+    await windowManager.showOverlay(managedWindow.id);
+  }
+});
+
+// Basic message handler
+browser.runtime.onMessage.addListener((request, sender, sendResponse: any) => {
+  console.log('[Background] Message received:', request.type);
+
+  // Example response
+  if (request.type === 'PING') {
+    sendResponse({ type: 'PONG' });
+    return true;
+  }
+
+  // Backward compatibility: Handle legacy TLSN_CONTENT_TO_EXTENSION message (Task 3.5)
+  // This maintains compatibility with existing code that uses the old API
+  if (request.type === 'TLSN_CONTENT_TO_EXTENSION') {
+    console.log(
+      '[Background] Legacy TLSN_CONTENT_TO_EXTENSION received, opening x.com window',
+    );
+
+    // Open x.com window using the new WindowManager system
+    browser.windows
+      .create({
+        url: 'https://x.com',
+        type: 'popup',
+        width: 900,
+        height: 700,
+      })
+      .then(async (window) => {
+        if (
+          !window.id ||
+          !window.tabs ||
+          !window.tabs[0] ||
+          !window.tabs[0].id
+        ) {
+          throw new Error('Failed to create window or get tab ID');
+        }
+
+        const windowId = window.id;
+        const tabId = window.tabs[0].id;
+
+        console.log(
+          `[Background] Legacy window created: ${windowId}, Tab: ${tabId}`,
+        );
+
+        // Register with WindowManager (overlay will be shown when tab loads)
+        await windowManager.registerWindow({
+          id: windowId,
+          tabId: tabId,
+          url: 'https://x.com',
+          showOverlay: true,
+        });
+      })
+      .catch((error) => {
+        console.error('[Background] Error creating legacy window:', error);
+      });
+
+    return true;
+  }
+
+  // Handle OPEN_WINDOW requests from content scripts
+  if (request.type === 'OPEN_WINDOW') {
+    console.log('[Background] OPEN_WINDOW request received:', request.url);
+
+    // Validate URL using comprehensive validator
+    const urlValidation = validateUrl(request.url);
+    if (!urlValidation.valid) {
+      console.error('[Background] URL validation failed:', urlValidation.error);
+      sendResponse({
+        type: 'WINDOW_ERROR',
+        payload: {
+          error: 'Invalid URL',
+          details: urlValidation.error || 'URL validation failed',
+        },
+      });
+      return true;
+    }
+
+    // Open a new window with the requested URL
+    browser.windows
+      .create({
+        url: request.url,
+        type: 'popup',
+        width: request.width || 900,
+        height: request.height || 700,
+      })
+      .then(async (window) => {
+        if (
+          !window.id ||
+          !window.tabs ||
+          !window.tabs[0] ||
+          !window.tabs[0].id
+        ) {
+          throw new Error('Failed to create window or get tab ID');
+        }
+
+        const windowId = window.id;
+        const tabId = window.tabs[0].id;
+
+        console.log(`[Background] Window created: ${windowId}, Tab: ${tabId}`);
+
+        try {
+          // Register window with WindowManager
+          const managedWindow = await windowManager.registerWindow({
+            id: windowId,
+            tabId: tabId,
+            url: request.url,
+            showOverlay: request.showOverlay !== false, // Default to true
+          });
+
+          console.log(`[Background] Window registered: ${managedWindow.uuid}`);
+
+          // Send success response
+          sendResponse({
+            type: 'WINDOW_OPENED',
+            payload: {
+              windowId: managedWindow.id,
+              uuid: managedWindow.uuid,
+              tabId: managedWindow.tabId,
+            },
+          });
+        } catch (registrationError) {
+          // Registration failed (e.g., window limit exceeded)
+          // Close the window we just created
+          console.error('[Background] Window registration failed:', registrationError);
+          await browser.windows.remove(windowId).catch(() => {
+            // Ignore errors if window already closed
+          });
+
+          sendResponse({
+            type: 'WINDOW_ERROR',
+            payload: {
+              error: 'Window registration failed',
+              details: String(registrationError),
+            },
+          });
+        }
+      })
+      .catch((error) => {
+        console.error('[Background] Error creating window:', error);
+        sendResponse({
+          type: 'WINDOW_ERROR',
+          payload: {
+            error: 'Failed to create window',
+            details: String(error),
+          },
+        });
+      });
+
+    return true; // Keep message channel open for async response
+  }
+
+  return true; // Keep message channel open for async response
+});
+
+// Create offscreen document if needed (Chrome 109+)
+async function createOffscreenDocument() {
+  // Check if we're in a Chrome environment that supports offscreen documents
+  if (!chrome?.offscreen) {
+    console.log('Offscreen API not available');
+    return;
+  }
+
+  const offscreenUrl = browser.runtime.getURL('offscreen.html');
+
+  // Check if offscreen document already exists
+  const existingContexts = await chrome.runtime.getContexts({
+    contextTypes: ['OFFSCREEN_DOCUMENT'],
+    documentUrls: [offscreenUrl],
+  });
+
+  if (existingContexts.length > 0) {
+    return;
+  }
+
+  // Create offscreen document
+  await chrome.offscreen.createDocument({
+    url: 'offscreen.html',
+    reasons: ['DOM_SCRAPING'],
+    justification: 'Offscreen document for background processing',
+  });
+}
+
+// Initialize offscreen document
+createOffscreenDocument().catch(console.error);
+
+// Periodic cleanup of invalid windows (every 5 minutes)
+const CLEANUP_INTERVAL_MS = 5 * 60 * 1000; // 5 minutes
+setInterval(() => {
+  console.log('[Background] Running periodic window cleanup...');
+  windowManager.cleanupInvalidWindows().catch((error) => {
+    console.error('[Background] Error during cleanup:', error);
+  });
+}, CLEANUP_INTERVAL_MS);
+
+// Run initial cleanup after 10 seconds
+setTimeout(() => {
+  windowManager.cleanupInvalidWindows().catch((error) => {
+    console.error('[Background] Error during initial cleanup:', error);
+  });
+}, 10000);
+
+export {};
--- a/packages/extension/src/entries/Content/content.styles.css
+++ b/packages/extension/src/entries/Content/content.styles.css
--- a/packages/extension/src/entries/Content/content.ts
+++ b/packages/extension/src/entries/Content/content.ts
@@ -0,0 +1,92 @@
+console.log('Page script injected');
+
+/**
+ * ExtensionAPI - Public API exposed to web pages via window.tlsn
+ *
+ * Provides methods for web pages to interact with the TLSN extension,
+ * including opening new windows for notarization.
+ */
+class ExtensionAPI {
+  /**
+   * Legacy sendMessage method
+   * @deprecated Use specific methods like open() instead
+   */
+  sendMessage(data: any) {
+    window.postMessage(
+      {
+        type: 'TLSN_CONTENT_SCRIPT_MESSAGE',
+        payload: data,
+      },
+      window.location.origin,
+    );
+  }
+
+  /**
+   * Open a new browser window with the specified URL
+   *
+   * The window will have request interception enabled and display
+   * the TLSN overlay showing all captured HTTP requests.
+   *
+   * @param url - The URL to open in the new window
+   * @param options - Optional window configuration
+   * @param options.width - Window width in pixels (default: 900)
+   * @param options.height - Window height in pixels (default: 700)
+   * @param options.showOverlay - Whether to show the TLSN overlay (default: true)
+   * @returns Promise that resolves when the window is opened
+   *
+   * @example
+   * ```javascript
+   * // Open Twitter in a new window
+   * await window.tlsn.open('https://twitter.com');
+   *
+   * // Open with custom dimensions
+   * await window.tlsn.open('https://example.com', {
+   *   width: 1200,
+   *   height: 800,
+   *   showOverlay: true
+   * });
+   * ```
+   */
+  async open(
+    url: string,
+    options?: {
+      width?: number;
+      height?: number;
+      showOverlay?: boolean;
+    },
+  ): Promise<void> {
+    if (!url || typeof url !== 'string') {
+      throw new Error('URL must be a non-empty string');
+    }
+
+    // Validate URL format
+    try {
+      new URL(url);
+    } catch (error) {
+      throw new Error(`Invalid URL: ${url}`);
+    }
+
+    // Send message to content script
+    window.postMessage(
+      {
+        type: 'TLSN_OPEN_WINDOW',
+        payload: {
+          url,
+          width: options?.width,
+          height: options?.height,
+          showOverlay: options?.showOverlay,
+        },
+      },
+      window.location.origin,
+    );
+
+    // Return immediately - actual window opening is async
+    // Future enhancement: Could return a Promise that resolves with window info
+  }
+}
+
+// Expose API to the page
+(window as any).tlsn = new ExtensionAPI();
+
+// Dispatch event to notify page that extension is loaded
+window.dispatchEvent(new CustomEvent('extension_loaded'));
--- a/packages/extension/src/entries/Content/index.ts
+++ b/packages/extension/src/entries/Content/index.ts
@@ -0,0 +1,288 @@
+import browser from 'webextension-polyfill';
+
+console.log('Content script loaded on:', window.location.href);
+
+// Inject a script into the page if needed
+function injectScript() {
+  const script = document.createElement('script');
+  script.src = browser.runtime.getURL('content.bundle.js');
+  script.type = 'text/javascript';
+  (document.head || document.documentElement).appendChild(script);
+  script.onload = () => script.remove();
+}
+
+// Store for intercepted requests
+let currentRequests: any[] = [];
+
+// Function to create and show the TLSN overlay
+function createTLSNOverlay(initialRequests?: any[]) {
+  if (initialRequests) {
+    currentRequests = initialRequests;
+  }
+
+  // Remove any existing overlay
+  const existingOverlay = document.getElementById('tlsn-overlay');
+  if (existingOverlay) {
+    existingOverlay.remove();
+  }
+
+  // Create overlay container
+  const overlay = document.createElement('div');
+  overlay.id = 'tlsn-overlay';
+  overlay.style.cssText = `
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0, 0, 0, 0.85);
+    z-index: 999999;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+  `;
+
+  // Create message box
+  const messageBox = document.createElement('div');
+  messageBox.id = 'tlsn-message-box';
+  messageBox.style.cssText = `
+    background: linear-gradient(135deg, #1e1e2e 0%, #2a2a3e 100%);
+    color: white;
+    padding: 30px;
+    border-radius: 16px;
+    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
+    animation: fadeInScale 0.3s ease-out;
+    max-width: 800px;
+    width: 90%;
+    max-height: 600px;
+    display: flex;
+    flex-direction: column;
+  `;
+
+  // Build request list HTML
+  let requestsHTML = '';
+  if (currentRequests.length > 0) {
+    requestsHTML = currentRequests
+      .map(
+        (req, index) => `
+      <div style="
+        background: rgba(255, 255, 255, 0.05);
+        padding: 8px 12px;
+        margin-bottom: 6px;
+        border-radius: 6px;
+        display: flex;
+        gap: 12px;
+        font-size: 13px;
+        border-left: 3px solid #667eea;
+      ">
+        <span style="
+          color: #ffd700;
+          font-weight: 600;
+          min-width: 60px;
+        ">${req.method}</span>
+        <span style="
+          color: #e0e0e0;
+          word-break: break-all;
+          flex: 1;
+        ">${req.url}</span>
+      </div>
+    `,
+      )
+      .join('');
+  } else {
+    requestsHTML = `
+      <div style="
+        color: rgba(255, 255, 255, 0.5);
+        text-align: center;
+        padding: 20px;
+        font-style: italic;
+      ">
+        No requests intercepted yet...
+      </div>
+    `;
+  }
+
+  messageBox.innerHTML = `
+    <div style="
+      font-size: 24px;
+      font-weight: 700;
+      margin-bottom: 8px;
+      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+      -webkit-background-clip: text;
+      -webkit-text-fill-color: transparent;
+      background-clip: text;
+    ">
+      TLSN Plugin In Progress
+    </div>
+    <div style="
+      font-size: 14px;
+      opacity: 0.7;
+      margin-bottom: 20px;
+    ">
+      Intercepting network requests from this window
+    </div>
+    <div style="
+      background: rgba(0, 0, 0, 0.3);
+      border-radius: 8px;
+      padding: 12px;
+      overflow-y: auto;
+      max-height: 400px;
+      flex: 1;
+    ">
+      <div style="
+        font-size: 12px;
+        font-weight: 600;
+        margin-bottom: 12px;
+        color: #667eea;
+        text-transform: uppercase;
+        letter-spacing: 1px;
+      ">
+        Intercepted Requests (${currentRequests.length})
+      </div>
+      ${requestsHTML}
+    </div>
+  `;
+
+  // Add CSS animation
+  const existingStyle = document.getElementById('tlsn-styles');
+  if (!existingStyle) {
+    const style = document.createElement('style');
+    style.id = 'tlsn-styles';
+    style.textContent = `
+      @keyframes fadeInScale {
+        0% {
+          opacity: 0;
+          transform: scale(0.9);
+        }
+        100% {
+          opacity: 1;
+          transform: scale(1);
+        }
+      }
+
+      #tlsn-message-box::-webkit-scrollbar {
+        width: 8px;
+      }
+
+      #tlsn-message-box::-webkit-scrollbar-track {
+        background: rgba(255, 255, 255, 0.1);
+        border-radius: 4px;
+      }
+
+      #tlsn-message-box::-webkit-scrollbar-thumb {
+        background: rgba(102, 126, 234, 0.5);
+        border-radius: 4px;
+      }
+
+      #tlsn-message-box::-webkit-scrollbar-thumb:hover {
+        background: rgba(102, 126, 234, 0.7);
+      }
+    `;
+    document.head.appendChild(style);
+  }
+
+  overlay.appendChild(messageBox);
+  document.body.appendChild(overlay);
+}
+
+// Function to update the overlay with new requests
+function updateTLSNOverlay(requests: any[]) {
+  currentRequests = requests;
+  const overlay = document.getElementById('tlsn-overlay');
+  if (overlay) {
+    createTLSNOverlay(requests);
+  }
+}
+
+// Listen for messages from the extension
+browser.runtime.onMessage.addListener((request, sender, sendResponse: any) => {
+  console.log('Content script received message:', request);
+
+  if (request.type === 'GET_PAGE_INFO') {
+    // Example: Get page information
+    sendResponse({
+      title: document.title,
+      url: window.location.href,
+      domain: window.location.hostname,
+    });
+  }
+
+  if (request.type === 'SHOW_TLSN_OVERLAY') {
+    createTLSNOverlay(request.requests || []);
+    sendResponse({ success: true });
+  }
+
+  if (request.type === 'UPDATE_TLSN_REQUESTS') {
+    console.log('updateTLSNOverlay', request.requests);
+    updateTLSNOverlay(request.requests || []);
+    sendResponse({ success: true });
+  }
+
+  if (request.type === 'HIDE_TLSN_OVERLAY') {
+    const overlay = document.getElementById('tlsn-overlay');
+    if (overlay) {
+      overlay.remove();
+    }
+    currentRequests = [];
+    sendResponse({ success: true });
+  }
+
+  return true; // Keep the message channel open
+});
+
+// Send a message to background script when ready
+browser.runtime
+  .sendMessage({
+    type: 'CONTENT_SCRIPT_READY',
+    url: window.location.href,
+  })
+  .catch(console.error);
+
+// Listen for messages from the page
+window.addEventListener('message', (event) => {
+  // Only accept messages from the same origin
+  if (event.origin !== window.location.origin) return;
+
+  // Handle TLSN window.tlsn.open() calls
+  if (event.data?.type === 'TLSN_OPEN_WINDOW') {
+    console.log(
+      '[Content Script] Received TLSN_OPEN_WINDOW request:',
+      event.data.payload,
+    );
+
+    // Forward to background script with OPEN_WINDOW type
+    browser.runtime
+      .sendMessage({
+        type: 'OPEN_WINDOW',
+        url: event.data.payload.url,
+        width: event.data.payload.width,
+        height: event.data.payload.height,
+        showOverlay: event.data.payload.showOverlay,
+      })
+      .catch((error) => {
+        console.error(
+          '[Content Script] Failed to send OPEN_WINDOW message:',
+          error,
+        );
+      });
+  }
+
+  // Handle legacy TLSN_CONTENT_SCRIPT_MESSAGE
+  if (event.data?.type === 'TLSN_CONTENT_SCRIPT_MESSAGE') {
+    // Forward to content script/extension
+    browser.runtime.sendMessage({
+      type: 'TLSN_CONTENT_TO_EXTENSION',
+      payload: event.data.payload,
+    });
+  }
+});
+
+// Inject script if document is ready
+if (document.readyState === 'loading') {
+  document.addEventListener('DOMContentLoaded', injectScript);
+} else {
+  injectScript();
+}
+
+export {};
--- a/packages/extension/src/entries/Offscreen/Offscreen.css
+++ b/packages/extension/src/entries/Offscreen/Offscreen.css
--- a/packages/extension/src/entries/Offscreen/index.css
+++ b/packages/extension/src/entries/Offscreen/index.css
--- a/packages/extension/src/entries/Offscreen/index.html
+++ b/packages/extension/src/entries/Offscreen/index.html
--- a/packages/extension/src/entries/Offscreen/index.tsx
+++ b/packages/extension/src/entries/Offscreen/index.tsx
@@ -0,0 +1,32 @@
+import React from 'react';
+import { createRoot } from 'react-dom/client';
+
+const OffscreenApp: React.FC = () => {
+  React.useEffect(() => {
+    console.log('Offscreen document loaded');
+
+    // Listen for messages from background script
+    chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
+      console.log('Offscreen received message:', request);
+
+      // Example message handling
+      if (request.type === 'PROCESS_DATA') {
+        // Process data in offscreen context
+        sendResponse({ success: true, data: 'Processed in offscreen' });
+      }
+    });
+  }, []);
+
+  return (
+    <div className="offscreen-container">
+      <h1>Offscreen Document</h1>
+      <p>This document runs in the background for processing tasks.</p>
+    </div>
+  );
+};
+
+const container = document.getElementById('app-container');
+if (container) {
+  const root = createRoot(container);
+  root.render(<OffscreenApp />);
+}
--- a/packages/extension/src/entries/Popup/Popup.scss
+++ b/packages/extension/src/entries/Popup/Popup.scss
--- a/packages/extension/src/entries/Popup/Popup.tsx
+++ b/packages/extension/src/entries/Popup/Popup.tsx
@@ -0,0 +1,33 @@
+import React from 'react';
+import { useSelector } from 'react-redux';
+import { RootState } from '../../reducers';
+import browser from 'webextension-polyfill';
+
+const Popup: React.FC = () => {
+  const message = useSelector((state: RootState) => state.app.message);
+
+  const handleClick = async () => {
+    // Send message to background script
+    const response = await browser.runtime.sendMessage({ type: 'PING' });
+    console.log('Response from background:', response);
+  };
+
+  return (
+    <div className="w-[400px] h-[300px] bg-white p-8">
+      <div className="flex flex-col items-center justify-center h-full">
+        <h1 className="text-3xl font-bold text-gray-800 mb-4">Hello World!</h1>
+        <p className="text-gray-600 mb-6">
+          {message || 'Chrome Extension Boilerplate'}
+        </p>
+        <button
+          onClick={handleClick}
+          className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600 transition-colors"
+        >
+          Test Background Script
+        </button>
+      </div>
+    </div>
+  );
+};
+
+export default Popup;
--- a/packages/extension/src/entries/Popup/index.html
+++ b/packages/extension/src/entries/Popup/index.html
--- a/packages/extension/src/entries/Popup/index.scss
+++ b/packages/extension/src/entries/Popup/index.scss
@@ -4,10 +4,10 @@

 $fa-font-path: "~@fortawesome/fontawesome-free/webfonts";

-@import "../../../node_modules/@fortawesome/fontawesome-free/scss/fontawesome";
-@import "../../../node_modules/@fortawesome/fontawesome-free/scss/brands";
-@import "../../../node_modules/@fortawesome/fontawesome-free/scss/solid";
-@import "../../../node_modules/@fortawesome/fontawesome-free/scss/regular";
+@import "~@fortawesome/fontawesome-free/scss/fontawesome";
+@import "~@fortawesome/fontawesome-free/scss/brands";
+@import "~@fortawesome/fontawesome-free/scss/solid";
+@import "~@fortawesome/fontawesome-free/scss/regular";

 body {
  width: 480px;
--- a/packages/extension/src/entries/Popup/index.tsx
+++ b/packages/extension/src/entries/Popup/index.tsx
@@ -0,0 +1,16 @@
+import React from 'react';
+import { createRoot } from 'react-dom/client';
+import { Provider } from 'react-redux';
+import Popup from './Popup';
+import './index.scss';
+import store from '../../utils/store';
+
+const container = document.getElementById('app-container');
+if (container) {
+  const root = createRoot(container);
+  root.render(
+    <Provider store={store}>
+      <Popup />
+    </Provider>,
+  );
+}
--- a/packages/extension/src/global.d.ts
+++ b/packages/extension/src/global.d.ts
--- a/packages/extension/src/manifest.json
+++ b/packages/extension/src/manifest.json
@@ -1,8 +1,7 @@
 {
  "manifest_version": 3,
-  "name": "TLSN Extension",
-  "description": "A chrome extension for TLSN",
-  "options_page": "options.html",
+  "name": "Extension Boilerplate",
+  "description": "A minimal Chrome extension boilerplate",
  "background": {
    "service_worker": "background.bundle.js"
  },
@@ -10,9 +9,6 @@
    "default_popup": "popup.html",
    "default_icon": "icon-34.png"
  },
-  "side_panel": {
-    "default_path": "sidePanel.html"
-  },
  "icons": {
    "128": "icon-128.png"
  },
@@ -28,16 +24,17 @@
  ],
  "web_accessible_resources": [
    {
-      "resources": ["content.styles.css", "icon-128.png", "icon-34.png", "content.bundle.js", "discord_dm.wasm", "twitter_profile.wasm"],
+      "resources": ["content.styles.css", "icon-128.png", "icon-34.png", "content.bundle.js"],
      "matches": ["http://*/*", "https://*/*", "<all_urls>"]
    }
  ],
  "host_permissions": ["<all_urls>"],
  "permissions": [
    "offscreen",
-    "storage",
    "webRequest",
+    "storage",
    "activeTab",
-    "sidePanel"
+    "tabs",
+    "windows"
  ]
-}
+}
--- a/packages/extension/src/reducers/index.tsx
+++ b/packages/extension/src/reducers/index.tsx
@@ -0,0 +1,47 @@
+import { combineReducers } from 'redux';
+
+// Basic app reducer
+interface AppState {
+  message: string;
+  count: number;
+}
+
+const initialAppState: AppState = {
+  message: 'Welcome to the extension!',
+  count: 0,
+};
+
+// Action types
+const SET_MESSAGE = 'SET_MESSAGE';
+const INCREMENT_COUNT = 'INCREMENT_COUNT';
+
+// Action creators
+export const setMessage = (message: string) => ({
+  type: SET_MESSAGE,
+  payload: message,
+});
+
+export const incrementCount = () => ({
+  type: INCREMENT_COUNT,
+});
+
+// App reducer
+const appReducer = (state = initialAppState, action: any): AppState => {
+  switch (action.type) {
+    case SET_MESSAGE:
+      return { ...state, message: action.payload };
+    case INCREMENT_COUNT:
+      return { ...state, count: state.count + 1 };
+    default:
+      return state;
+  }
+};
+
+// Root reducer
+const rootReducer = combineReducers({
+  app: appReducer,
+});
+
+export type RootState = ReturnType<typeof rootReducer>;
+export type AppRootState = RootState; // For backward compatibility
+export default rootReducer;
--- a/packages/extension/src/types/window-manager.ts
+++ b/packages/extension/src/types/window-manager.ts
@@ -0,0 +1,149 @@
+/**
+ * Type definitions for WindowManager
+ *
+ * These types define the core data structures for managing multiple
+ * browser windows with request interception and TLSN overlay functionality.
+ */
+
+/**
+ * Configuration for registering a new window with the WindowManager
+ */
+export interface WindowRegistration {
+  /** Chrome window ID */
+  id: number;
+
+  /** Primary tab ID within the window */
+  tabId: number;
+
+  /** Target URL for the window */
+  url: string;
+
+  /** Whether to show the TLSN overlay on creation (default: true) */
+  showOverlay?: boolean;
+}
+
+/**
+ * An intercepted HTTP request captured by the webRequest API
+ */
+export interface InterceptedRequest {
+  /** Unique request ID from webRequest API */
+  id: string;
+
+  /** HTTP method (GET, POST, PUT, DELETE, etc.) */
+  method: string;
+
+  /** Full request URL */
+  url: string;
+
+  /** Unix timestamp (milliseconds) when request was intercepted */
+  timestamp: number;
+
+  /** Tab ID where the request originated */
+  tabId: number;
+}
+
+/**
+ * A managed browser window tracked by WindowManager
+ */
+export interface ManagedWindow {
+  /** Chrome window ID */
+  id: number;
+
+  /** Internal unique identifier (UUID v4) */
+  uuid: string;
+
+  /** Primary tab ID */
+  tabId: number;
+
+  /** Current or initial URL */
+  url: string;
+
+  /** Creation timestamp */
+  createdAt: Date;
+
+  /** Array of intercepted HTTP requests for this window */
+  requests: InterceptedRequest[];
+
+  /** Whether the TLSN overlay is currently visible */
+  overlayVisible: boolean;
+
+  /** Whether to show overlay when tab becomes ready (complete status) */
+  showOverlayWhenReady: boolean;
+}
+
+/**
+ * WindowManager interface defining all window management operations
+ */
+export interface IWindowManager {
+  /**
+   * Register a new window with the manager
+   * @param config - Window registration configuration
+   * @returns The created ManagedWindow object
+   */
+  registerWindow(config: WindowRegistration): Promise<ManagedWindow>;
+
+  /**
+   * Close and cleanup a window
+   * @param windowId - Chrome window ID
+   */
+  closeWindow(windowId: number): Promise<void>;
+
+  /**
+   * Get a managed window by ID
+   * @param windowId - Chrome window ID
+   * @returns The ManagedWindow or undefined if not found
+   */
+  getWindow(windowId: number): ManagedWindow | undefined;
+
+  /**
+   * Get a managed window by tab ID
+   * @param tabId - Chrome tab ID
+   * @returns The ManagedWindow or undefined if not found
+   */
+  getWindowByTabId(tabId: number): ManagedWindow | undefined;
+
+  /**
+   * Get all managed windows
+   * @returns Map of window IDs to ManagedWindow objects
+   */
+  getAllWindows(): Map<number, ManagedWindow>;
+
+  /**
+   * Add an intercepted request to a window
+   * @param windowId - Chrome window ID
+   * @param request - The intercepted request to add
+   */
+  addRequest(windowId: number, request: InterceptedRequest): void;
+
+  /**
+   * Get all requests for a window
+   * @param windowId - Chrome window ID
+   * @returns Array of intercepted requests
+   */
+  getWindowRequests(windowId: number): InterceptedRequest[];
+
+  /**
+   * Show the TLSN overlay in a window
+   * @param windowId - Chrome window ID
+   */
+  showOverlay(windowId: number): Promise<void>;
+
+  /**
+   * Hide the TLSN overlay in a window
+   * @param windowId - Chrome window ID
+   */
+  hideOverlay(windowId: number): Promise<void>;
+
+  /**
+   * Check if overlay is visible in a window
+   * @param windowId - Chrome window ID
+   * @returns true if overlay is visible, false otherwise
+   */
+  isOverlayVisible(windowId: number): boolean;
+
+  /**
+   * Cleanup windows that are no longer valid
+   * Removes windows from tracking if they've been closed in the browser
+   */
+  cleanupInvalidWindows(): Promise<void>;
+}
--- a/packages/extension/src/utils/store.ts
+++ b/packages/extension/src/utils/store.ts
--- a/packages/extension/src/utils/url-validator.ts
+++ b/packages/extension/src/utils/url-validator.ts
@@ -0,0 +1,175 @@
+/**
+ * URL validation utilities for TLSN extension
+ *
+ * Provides robust URL validation to prevent security issues
+ * and ensure only valid HTTP/HTTPS URLs are opened.
+ */
+
+/**
+ * Allowed URL protocols for window opening
+ */
+const ALLOWED_PROTOCOLS = ['http:', 'https:'];
+
+/**
+ * Dangerous protocols that should be rejected
+ */
+const DANGEROUS_PROTOCOLS = ['javascript:', 'data:', 'file:', 'blob:', 'about:'];
+
+/**
+ * Result of URL validation
+ */
+export interface UrlValidationResult {
+  /** Whether the URL is valid and safe to use */
+  valid: boolean;
+  /** Error message if validation failed */
+  error?: string;
+  /** Parsed URL object if valid */
+  url?: URL;
+}
+
+/**
+ * Validate a URL for use with window.tlsn.open()
+ *
+ * Checks that the URL:
+ * - Is a non-empty string
+ * - Can be parsed as a valid URL
+ * - Uses http: or https: protocol only
+ * - Does not use dangerous protocols
+ *
+ * @param urlString - The URL string to validate
+ * @returns Validation result with parsed URL or error message
+ *
+ * @example
+ * ```typescript
+ * const result = validateUrl('https://example.com');
+ * if (result.valid) {
+ *   console.log('URL is safe:', result.url.href);
+ * } else {
+ *   console.error('Invalid URL:', result.error);
+ * }
+ * ```
+ */
+export function validateUrl(urlString: unknown): UrlValidationResult {
+  // Check if URL is a non-empty string
+  if (!urlString || typeof urlString !== 'string') {
+    return {
+      valid: false,
+      error: 'URL must be a non-empty string',
+    };
+  }
+
+  const trimmedUrl = urlString.trim();
+
+  if (trimmedUrl.length === 0) {
+    return {
+      valid: false,
+      error: 'URL cannot be empty or whitespace only',
+    };
+  }
+
+  // Try to parse URL
+  let parsedUrl: URL;
+  try {
+    parsedUrl = new URL(trimmedUrl);
+  } catch (error) {
+    return {
+      valid: false,
+      error: `Invalid URL format: ${trimmedUrl}`,
+    };
+  }
+
+  // Check for dangerous protocols first
+  if (DANGEROUS_PROTOCOLS.includes(parsedUrl.protocol)) {
+    return {
+      valid: false,
+      error: `Dangerous protocol rejected: ${parsedUrl.protocol}. Only HTTP and HTTPS are allowed.`,
+    };
+  }
+
+  // Check for allowed protocols
+  if (!ALLOWED_PROTOCOLS.includes(parsedUrl.protocol)) {
+    return {
+      valid: false,
+      error: `Invalid protocol: ${parsedUrl.protocol}. Only HTTP and HTTPS are allowed.`,
+    };
+  }
+
+  // Additional security checks
+  if (!parsedUrl.hostname || parsedUrl.hostname.length === 0) {
+    return {
+      valid: false,
+      error: 'URL must include a valid hostname',
+    };
+  }
+
+  // URL is valid and safe
+  return {
+    valid: true,
+    url: parsedUrl,
+  };
+}
+
+/**
+ * Sanitize a URL by removing potentially dangerous components
+ *
+ * This function:
+ * - Trims whitespace
+ * - Removes URL fragments that could be used for XSS
+ * - Normalizes the URL
+ *
+ * @param urlString - The URL to sanitize
+ * @returns Sanitized URL string or null if invalid
+ *
+ * @example
+ * ```typescript
+ * const sanitized = sanitizeUrl('  https://example.com#dangerous  ');
+ * // Returns: 'https://example.com/'
+ * ```
+ */
+export function sanitizeUrl(urlString: string): string | null {
+  const validation = validateUrl(urlString);
+
+  if (!validation.valid || !validation.url) {
+    return null;
+  }
+
+  // Return the normalized URL without fragment
+  const sanitized = new URL(validation.url.href);
+  // Keep the fragment for now - it might be needed for single-page apps
+  // If security concerns arise, uncomment: sanitized.hash = '';
+
+  return sanitized.href;
+}
+
+/**
+ * Check if a URL is an HTTP or HTTPS URL
+ *
+ * This is a convenience function for quick protocol checks.
+ *
+ * @param urlString - The URL to check
+ * @returns true if URL is HTTP or HTTPS
+ */
+export function isHttpUrl(urlString: string): boolean {
+  try {
+    const url = new URL(urlString);
+    return ALLOWED_PROTOCOLS.includes(url.protocol);
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Get a user-friendly error message for URL validation failures
+ *
+ * @param urlString - The URL that failed validation
+ * @returns User-friendly error message
+ */
+export function getUrlErrorMessage(urlString: unknown): string {
+  const result = validateUrl(urlString);
+
+  if (result.valid) {
+    return 'URL is valid';
+  }
+
+  return result.error || 'Unknown URL validation error';
+}
--- a/packages/extension/src/utils/variables.scss
+++ b/packages/extension/src/utils/variables.scss
--- a/packages/extension/tailwind.config.js
+++ b/packages/extension/tailwind.config.js
--- a/packages/extension/tests/background/WindowManager.test.ts
+++ b/packages/extension/tests/background/WindowManager.test.ts
@@ -0,0 +1,556 @@
+/**
+ * WindowManager unit tests
+ *
+ * Tests all WindowManager functionality including window lifecycle,
+ * request tracking, overlay management, and cleanup.
+ */
+
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { WindowManager } from '../../src/background/WindowManager';
+import type {
+  WindowRegistration,
+  InterceptedRequest,
+} from '../../src/types/window-manager';
+import browser from 'webextension-polyfill';
+
+describe('WindowManager', () => {
+  let windowManager: WindowManager;
+
+  beforeEach(() => {
+    windowManager = new WindowManager();
+    vi.clearAllMocks();
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+    vi.useRealTimers();
+  });
+
+  describe('Window Registration', () => {
+    it('should register a new window', async () => {
+      const config: WindowRegistration = {
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false, // Don't trigger overlay in test
+      };
+
+      const window = await windowManager.registerWindow(config);
+
+      expect(window.id).toBe(123);
+      expect(window.tabId).toBe(456);
+      expect(window.url).toBe('https://example.com');
+      expect(window.uuid).toBeDefined();
+      expect(window.uuid).toMatch(
+        /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i,
+      );
+      expect(window.createdAt).toBeInstanceOf(Date);
+      expect(window.requests).toEqual([]);
+      expect(window.overlayVisible).toBe(false);
+    });
+
+    it('should generate unique UUIDs for each window', async () => {
+      const window1 = await windowManager.registerWindow({
+        id: 1,
+        tabId: 10,
+        url: 'https://example1.com',
+        showOverlay: false,
+      });
+
+      const window2 = await windowManager.registerWindow({
+        id: 2,
+        tabId: 20,
+        url: 'https://example2.com',
+        showOverlay: false,
+      });
+
+      expect(window1.uuid).not.toBe(window2.uuid);
+    });
+
+    it('should set showOverlayWhenReady by default when showOverlay not specified', async () => {
+      const config: WindowRegistration = {
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+      };
+
+      const window = await windowManager.registerWindow(config);
+
+      expect(window.showOverlayWhenReady).toBe(true);
+      expect(window.overlayVisible).toBe(false);
+      // Overlay will be shown by tabs.onUpdated listener when tab becomes 'complete'
+    });
+
+    it('should not set showOverlayWhenReady when showOverlay is false', async () => {
+      const config: WindowRegistration = {
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      };
+
+      const window = await windowManager.registerWindow(config);
+
+      expect(window.showOverlayWhenReady).toBe(false);
+      expect(window.overlayVisible).toBe(false);
+    });
+  });
+
+  describe('Window Lookup', () => {
+    beforeEach(async () => {
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+    });
+
+    it('should retrieve window by ID', () => {
+      const window = windowManager.getWindow(123);
+
+      expect(window).toBeDefined();
+      expect(window!.id).toBe(123);
+      expect(window!.tabId).toBe(456);
+    });
+
+    it('should return undefined for non-existent window ID', () => {
+      const window = windowManager.getWindow(999);
+
+      expect(window).toBeUndefined();
+    });
+
+    it('should retrieve window by tab ID', () => {
+      const window = windowManager.getWindowByTabId(456);
+
+      expect(window).toBeDefined();
+      expect(window!.id).toBe(123);
+      expect(window!.tabId).toBe(456);
+    });
+
+    it('should return undefined for non-existent tab ID', () => {
+      const window = windowManager.getWindowByTabId(999);
+
+      expect(window).toBeUndefined();
+    });
+
+    it('should retrieve all windows', async () => {
+      await windowManager.registerWindow({
+        id: 456,
+        tabId: 789,
+        url: 'https://example2.com',
+        showOverlay: false,
+      });
+
+      const allWindows = windowManager.getAllWindows();
+
+      expect(allWindows.size).toBe(2);
+      expect(allWindows.has(123)).toBe(true);
+      expect(allWindows.has(456)).toBe(true);
+    });
+
+    it('should return a copy of windows map', async () => {
+      const windows1 = windowManager.getAllWindows();
+      const windows2 = windowManager.getAllWindows();
+
+      expect(windows1).not.toBe(windows2);
+      expect(windows1.size).toBe(windows2.size);
+    });
+  });
+
+  describe('Window Closing', () => {
+    beforeEach(async () => {
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+    });
+
+    it('should close and remove window', async () => {
+      await windowManager.closeWindow(123);
+
+      const window = windowManager.getWindow(123);
+      expect(window).toBeUndefined();
+    });
+
+    it('should hide overlay before closing if visible', async () => {
+      await windowManager.showOverlay(123);
+      vi.clearAllMocks();
+
+      await windowManager.closeWindow(123);
+
+      expect(browser.tabs.sendMessage).toHaveBeenCalledWith(
+        456,
+        expect.objectContaining({
+          type: 'HIDE_TLSN_OVERLAY',
+        }),
+      );
+    });
+
+    it('should handle closing non-existent window gracefully', async () => {
+      await expect(windowManager.closeWindow(999)).resolves.not.toThrow();
+    });
+  });
+
+  describe('Request Tracking', () => {
+    beforeEach(async () => {
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+    });
+
+    it('should add request to window', () => {
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/api/data',
+        timestamp: Date.now(),
+        tabId: 456,
+      };
+
+      windowManager.addRequest(123, request);
+
+      const requests = windowManager.getWindowRequests(123);
+      expect(requests).toHaveLength(1);
+      expect(requests[0]).toEqual(request);
+    });
+
+    it('should add timestamp if not provided', () => {
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/api/data',
+        timestamp: 0, // Will be replaced
+        tabId: 456,
+      };
+
+      const beforeTime = Date.now();
+      windowManager.addRequest(123, request);
+      const afterTime = Date.now();
+
+      const requests = windowManager.getWindowRequests(123);
+      expect(requests[0].timestamp).toBeGreaterThanOrEqual(beforeTime);
+      expect(requests[0].timestamp).toBeLessThanOrEqual(afterTime);
+    });
+
+    it('should handle multiple requests in order', () => {
+      const request1: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/page1',
+        timestamp: 1000,
+        tabId: 456,
+      };
+
+      const request2: InterceptedRequest = {
+        id: 'req-2',
+        method: 'POST',
+        url: 'https://example.com/api',
+        timestamp: 2000,
+        tabId: 456,
+      };
+
+      windowManager.addRequest(123, request1);
+      windowManager.addRequest(123, request2);
+
+      const requests = windowManager.getWindowRequests(123);
+      expect(requests).toHaveLength(2);
+      expect(requests[0].id).toBe('req-1');
+      expect(requests[1].id).toBe('req-2');
+    });
+
+    it('should log error when adding request to non-existent window', () => {
+      const consoleErrorSpy = vi
+        .spyOn(console, 'error')
+        .mockImplementation(() => {});
+
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/api',
+        timestamp: Date.now(),
+        tabId: 999,
+      };
+
+      windowManager.addRequest(999, request);
+
+      expect(consoleErrorSpy).toHaveBeenCalledWith(
+        expect.stringContaining('Cannot add request to non-existent window'),
+      );
+
+      consoleErrorSpy.mockRestore();
+    });
+
+    it('should return empty array for non-existent window requests', () => {
+      const requests = windowManager.getWindowRequests(999);
+      expect(requests).toEqual([]);
+    });
+
+    it('should update overlay when request added to visible overlay', async () => {
+      await windowManager.showOverlay(123);
+      vi.clearAllMocks();
+
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/api',
+        timestamp: Date.now(),
+        tabId: 456,
+      };
+
+      windowManager.addRequest(123, request);
+
+      // Give async updateOverlay time to execute
+      await vi.runAllTimersAsync();
+
+      expect(browser.tabs.sendMessage).toHaveBeenCalledWith(
+        456,
+        expect.objectContaining({
+          type: 'UPDATE_TLSN_REQUESTS',
+          requests: expect.arrayContaining([request]),
+        }),
+      );
+    });
+  });
+
+  describe('Overlay Management', () => {
+    beforeEach(async () => {
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+    });
+
+    it('should show overlay', async () => {
+      await windowManager.showOverlay(123);
+
+      expect(browser.tabs.sendMessage).toHaveBeenCalledWith(
+        456,
+        expect.objectContaining({
+          type: 'SHOW_TLSN_OVERLAY',
+          requests: [],
+        }),
+      );
+
+      expect(windowManager.isOverlayVisible(123)).toBe(true);
+    });
+
+    it('should hide overlay', async () => {
+      await windowManager.showOverlay(123);
+      vi.clearAllMocks();
+
+      await windowManager.hideOverlay(123);
+
+      expect(browser.tabs.sendMessage).toHaveBeenCalledWith(
+        456,
+        expect.objectContaining({
+          type: 'HIDE_TLSN_OVERLAY',
+        }),
+      );
+
+      expect(windowManager.isOverlayVisible(123)).toBe(false);
+    });
+
+    it('should include requests when showing overlay', async () => {
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/api',
+        timestamp: Date.now(),
+        tabId: 456,
+      };
+
+      windowManager.addRequest(123, request);
+      await windowManager.showOverlay(123);
+
+      expect(browser.tabs.sendMessage).toHaveBeenCalledWith(
+        456,
+        expect.objectContaining({
+          type: 'SHOW_TLSN_OVERLAY',
+          requests: expect.arrayContaining([request]),
+        }),
+      );
+    });
+
+    it('should return false for non-existent window overlay visibility', () => {
+      expect(windowManager.isOverlayVisible(999)).toBe(false);
+    });
+
+    it('should handle overlay show error gracefully', async () => {
+      // Mock sendMessage to fail for all retry attempts
+      vi.mocked(browser.tabs.sendMessage).mockRejectedValue(
+        new Error('Tab not found'),
+      );
+
+      // Start showOverlay (which will retry with delays)
+      const showPromise = windowManager.showOverlay(123);
+
+      // Advance timers through all retry delays (10 retries × 500ms = 5000ms)
+      await vi.advanceTimersByTimeAsync(5500);
+
+      await expect(showPromise).resolves.not.toThrow();
+      expect(windowManager.isOverlayVisible(123)).toBe(false);
+    });
+
+    it('should handle overlay hide error gracefully', async () => {
+      await windowManager.showOverlay(123);
+      vi.mocked(browser.tabs.sendMessage).mockRejectedValueOnce(
+        new Error('Tab not found'),
+      );
+
+      await expect(windowManager.hideOverlay(123)).resolves.not.toThrow();
+    });
+  });
+
+  describe('Cleanup', () => {
+    it('should remove invalid windows during cleanup', async () => {
+      // Register multiple windows
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example1.com',
+        showOverlay: false,
+      });
+
+      await windowManager.registerWindow({
+        id: 456,
+        tabId: 789,
+        url: 'https://example2.com',
+        showOverlay: false,
+      });
+
+      // Mock window 123 still exists, window 456 is closed
+      vi.mocked(browser.windows.get).mockImplementation((windowId) => {
+        if (windowId === 123) {
+          return Promise.resolve({ id: 123 } as any);
+        }
+        return Promise.reject(new Error('Window not found'));
+      });
+
+      await windowManager.cleanupInvalidWindows();
+
+      // Window 123 should still exist
+      expect(windowManager.getWindow(123)).toBeDefined();
+
+      // Window 456 should be cleaned up
+      expect(windowManager.getWindow(456)).toBeUndefined();
+    });
+
+    it('should handle cleanup with no invalid windows', async () => {
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+
+      vi.mocked(browser.windows.get).mockResolvedValue({ id: 123 } as any);
+
+      await expect(
+        windowManager.cleanupInvalidWindows(),
+      ).resolves.not.toThrow();
+
+      expect(windowManager.getWindow(123)).toBeDefined();
+    });
+
+    it('should handle cleanup with no windows', async () => {
+      await expect(
+        windowManager.cleanupInvalidWindows(),
+      ).resolves.not.toThrow();
+    });
+  });
+
+  describe('Integration Scenarios', () => {
+    it('should handle complete window lifecycle', async () => {
+      // Register window
+      const window = await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: false,
+      });
+
+      expect(window.uuid).toBeDefined();
+
+      // Add requests
+      windowManager.addRequest(123, {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example.com/page',
+        timestamp: Date.now(),
+        tabId: 456,
+      });
+
+      windowManager.addRequest(123, {
+        id: 'req-2',
+        method: 'POST',
+        url: 'https://example.com/api',
+        timestamp: Date.now(),
+        tabId: 456,
+      });
+
+      expect(windowManager.getWindowRequests(123)).toHaveLength(2);
+
+      // Show overlay
+      await windowManager.showOverlay(123);
+      expect(windowManager.isOverlayVisible(123)).toBe(true);
+
+      // Close window
+      await windowManager.closeWindow(123);
+      expect(windowManager.getWindow(123)).toBeUndefined();
+    });
+
+    it('should handle multiple windows independently', async () => {
+      // Register two windows
+      await windowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example1.com',
+        showOverlay: false,
+      });
+
+      await windowManager.registerWindow({
+        id: 789,
+        tabId: 1011,
+        url: 'https://example2.com',
+        showOverlay: false,
+      });
+
+      // Add requests to different windows
+      windowManager.addRequest(123, {
+        id: 'req-1',
+        method: 'GET',
+        url: 'https://example1.com/api',
+        timestamp: Date.now(),
+        tabId: 456,
+      });
+
+      windowManager.addRequest(789, {
+        id: 'req-2',
+        method: 'POST',
+        url: 'https://example2.com/api',
+        timestamp: Date.now(),
+        tabId: 1011,
+      });
+
+      // Each window should have its own requests
+      expect(windowManager.getWindowRequests(123)).toHaveLength(1);
+      expect(windowManager.getWindowRequests(789)).toHaveLength(1);
+      expect(windowManager.getWindowRequests(123)[0].id).toBe('req-1');
+      expect(windowManager.getWindowRequests(789)[0].id).toBe('req-2');
+
+      // Show overlay on one window
+      await windowManager.showOverlay(123);
+      expect(windowManager.isOverlayVisible(123)).toBe(true);
+      expect(windowManager.isOverlayVisible(789)).toBe(false);
+    });
+  });
+});
--- a/packages/extension/tests/entries/content-api.test.ts
+++ b/packages/extension/tests/entries/content-api.test.ts
@@ -0,0 +1,266 @@
+/**
+ * Tests for Content Script Client API (window.tlsn)
+ *
+ * Tests the public API exposed to web pages for interacting
+ * with the TLSN extension.
+ */
+
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+
+describe('Content Script Client API', () => {
+  let postMessageSpy: any;
+
+  beforeEach(() => {
+    // Mock window.postMessage
+    postMessageSpy = vi.spyOn(window, 'postMessage');
+  });
+
+  describe('window.tlsn.open()', () => {
+    // Simulate the injected script's ExtensionAPI class
+    class ExtensionAPI {
+      async open(
+        url: string,
+        options?: {
+          width?: number;
+          height?: number;
+          showOverlay?: boolean;
+        },
+      ): Promise<void> {
+        if (!url || typeof url !== 'string') {
+          throw new Error('URL must be a non-empty string');
+        }
+
+        // Validate URL format
+        try {
+          new URL(url);
+        } catch (error) {
+          throw new Error(`Invalid URL: ${url}`);
+        }
+
+        // Send message to content script
+        window.postMessage(
+          {
+            type: 'TLSN_OPEN_WINDOW',
+            payload: {
+              url,
+              width: options?.width,
+              height: options?.height,
+              showOverlay: options?.showOverlay,
+            },
+          },
+          window.location.origin,
+        );
+      }
+    }
+
+    let tlsn: ExtensionAPI;
+
+    beforeEach(() => {
+      tlsn = new ExtensionAPI();
+    });
+
+    it('should post message with valid URL', async () => {
+      await tlsn.open('https://example.com');
+
+      expect(postMessageSpy).toHaveBeenCalledWith(
+        {
+          type: 'TLSN_OPEN_WINDOW',
+          payload: {
+            url: 'https://example.com',
+            width: undefined,
+            height: undefined,
+            showOverlay: undefined,
+          },
+        },
+        window.location.origin,
+      );
+    });
+
+    it('should include width and height options', async () => {
+      await tlsn.open('https://example.com', {
+        width: 1200,
+        height: 800,
+      });
+
+      expect(postMessageSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          type: 'TLSN_OPEN_WINDOW',
+          payload: expect.objectContaining({
+            url: 'https://example.com',
+            width: 1200,
+            height: 800,
+          }),
+        }),
+        window.location.origin,
+      );
+    });
+
+    it('should include showOverlay option', async () => {
+      await tlsn.open('https://example.com', {
+        showOverlay: false,
+      });
+
+      expect(postMessageSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          type: 'TLSN_OPEN_WINDOW',
+          payload: expect.objectContaining({
+            url: 'https://example.com',
+            showOverlay: false,
+          }),
+        }),
+        window.location.origin,
+      );
+    });
+
+    it('should reject empty URL', async () => {
+      await expect(tlsn.open('')).rejects.toThrow(
+        'URL must be a non-empty string',
+      );
+    });
+
+    it('should reject non-string URL', async () => {
+      await expect(tlsn.open(null as any)).rejects.toThrow(
+        'URL must be a non-empty string',
+      );
+      await expect(tlsn.open(undefined as any)).rejects.toThrow(
+        'URL must be a non-empty string',
+      );
+      await expect(tlsn.open(123 as any)).rejects.toThrow(
+        'URL must be a non-empty string',
+      );
+    });
+
+    it('should reject invalid URL format', async () => {
+      await expect(tlsn.open('not-a-url')).rejects.toThrow('Invalid URL');
+      await expect(tlsn.open('ftp://example.com')).resolves.not.toThrow(); // Valid URL, will be validated by background
+    });
+
+    it('should accept http URLs', async () => {
+      await expect(tlsn.open('http://example.com')).resolves.not.toThrow();
+    });
+
+    it('should accept https URLs', async () => {
+      await expect(tlsn.open('https://example.com')).resolves.not.toThrow();
+    });
+
+    it('should accept URLs with paths', async () => {
+      await expect(
+        tlsn.open('https://example.com/path/to/page'),
+      ).resolves.not.toThrow();
+    });
+
+    it('should accept URLs with query parameters', async () => {
+      await expect(
+        tlsn.open('https://example.com/search?q=test&lang=en'),
+      ).resolves.not.toThrow();
+    });
+
+    it('should accept URLs with fragments', async () => {
+      await expect(
+        tlsn.open('https://example.com/page#section'),
+      ).resolves.not.toThrow();
+    });
+
+    it('should post message to correct origin', async () => {
+      await tlsn.open('https://example.com');
+
+      expect(postMessageSpy).toHaveBeenCalledWith(
+        expect.any(Object),
+        window.location.origin,
+      );
+    });
+  });
+
+  describe('Message Type Constants', () => {
+    it('should define all required message types', async () => {
+      const {
+        OPEN_WINDOW,
+        WINDOW_OPENED,
+        WINDOW_ERROR,
+        SHOW_TLSN_OVERLAY,
+        UPDATE_TLSN_REQUESTS,
+        HIDE_TLSN_OVERLAY,
+      } = await import('../../src/constants/messages');
+
+      expect(OPEN_WINDOW).toBe('OPEN_WINDOW');
+      expect(WINDOW_OPENED).toBe('WINDOW_OPENED');
+      expect(WINDOW_ERROR).toBe('WINDOW_ERROR');
+      expect(SHOW_TLSN_OVERLAY).toBe('SHOW_TLSN_OVERLAY');
+      expect(UPDATE_TLSN_REQUESTS).toBe('UPDATE_TLSN_REQUESTS');
+      expect(HIDE_TLSN_OVERLAY).toBe('HIDE_TLSN_OVERLAY');
+    });
+
+    it('should export type definitions', async () => {
+      const messages = await import('../../src/constants/messages');
+
+      // Check that types are exported (TypeScript compilation will verify this)
+      expect(messages).toHaveProperty('OPEN_WINDOW');
+      expect(messages).toHaveProperty('WINDOW_OPENED');
+      expect(messages).toHaveProperty('WINDOW_ERROR');
+    });
+  });
+
+  describe('Content Script Message Forwarding', () => {
+    it('should forward TLSN_OPEN_WINDOW to background as OPEN_WINDOW', () => {
+      // This test verifies the message transformation logic
+      const pageMessage = {
+        type: 'TLSN_OPEN_WINDOW',
+        payload: {
+          url: 'https://example.com',
+          width: 1000,
+          height: 800,
+          showOverlay: true,
+        },
+      };
+
+      // Expected background message format
+      const expectedBackgroundMessage = {
+        type: 'OPEN_WINDOW',
+        url: 'https://example.com',
+        width: 1000,
+        height: 800,
+        showOverlay: true,
+      };
+
+      // Verify transformation logic
+      expect(pageMessage.payload).toEqual({
+        url: expectedBackgroundMessage.url,
+        width: expectedBackgroundMessage.width,
+        height: expectedBackgroundMessage.height,
+        showOverlay: expectedBackgroundMessage.showOverlay,
+      });
+    });
+
+    it('should handle optional parameters correctly', () => {
+      const pageMessage = {
+        type: 'TLSN_OPEN_WINDOW',
+        payload: {
+          url: 'https://example.com',
+        },
+      };
+
+      // width, height, showOverlay should be undefined
+      expect(pageMessage.payload.width).toBeUndefined();
+      expect(pageMessage.payload.height).toBeUndefined();
+      expect((pageMessage.payload as any).showOverlay).toBeUndefined();
+    });
+  });
+
+  describe('Origin Validation', () => {
+    it('should only accept messages from same origin', () => {
+      const currentOrigin = window.location.origin;
+
+      // Valid origins
+      expect(currentOrigin).toBe(window.location.origin);
+
+      // Example of what content script should check
+      const isValidOrigin = (eventOrigin: string) => {
+        return eventOrigin === window.location.origin;
+      };
+
+      expect(isValidOrigin(currentOrigin)).toBe(true);
+      expect(isValidOrigin('https://evil.com')).toBe(false);
+      expect(isValidOrigin('http://different.com')).toBe(false);
+    });
+  });
+});
--- a/packages/extension/tests/example.test.ts
+++ b/packages/extension/tests/example.test.ts
@@ -0,0 +1,72 @@
+/**
+ * Example test file demonstrating Vitest setup
+ */
+
+import { describe, it, expect } from 'vitest';
+
+describe('Example Test Suite', () => {
+  it('should perform basic arithmetic', () => {
+    expect(1 + 1).toBe(2);
+  });
+
+  it('should handle string operations', () => {
+    const greeting = 'Hello, TLSNotary!';
+    expect(greeting).toContain('TLSNotary');
+    expect(greeting.length).toBeGreaterThan(0);
+  });
+
+  it('should work with arrays', () => {
+    const arr = [1, 2, 3, 4, 5];
+    expect(arr).toHaveLength(5);
+    expect(arr).toContain(3);
+  });
+
+  it('should handle async operations', async () => {
+    const asyncFunc = async () => {
+      return new Promise((resolve) => {
+        setTimeout(() => resolve('done'), 100);
+      });
+    };
+
+    const result = await asyncFunc();
+    expect(result).toBe('done');
+  });
+});
+
+describe('URL Validation Example', () => {
+  it('should validate http/https URLs', () => {
+    const isValidUrl = (url: string): boolean => {
+      try {
+        const parsed = new URL(url);
+        return parsed.protocol === 'http:' || parsed.protocol === 'https:';
+      } catch {
+        return false;
+      }
+    };
+
+    // Valid URLs
+    expect(isValidUrl('https://example.com')).toBe(true);
+    expect(isValidUrl('http://test.org')).toBe(true);
+
+    // Invalid URLs
+    expect(isValidUrl('javascript:alert(1)')).toBe(false);
+    expect(isValidUrl('not-a-url')).toBe(false);
+    expect(isValidUrl('file:///etc/passwd')).toBe(false);
+  });
+});
+
+describe('Browser API Mocking Example', () => {
+  it('should have chrome global available', () => {
+    expect(globalThis.chrome).toBeDefined();
+    expect(globalThis.chrome.runtime).toBeDefined();
+  });
+
+  it('should mock webextension-polyfill', async () => {
+    // This demonstrates that our setup.ts mock is working
+    const browser = await import('webextension-polyfill');
+
+    expect(browser.default.runtime.id).toBe('test-extension-id');
+    expect(browser.default.runtime.sendMessage).toBeDefined();
+    expect(browser.default.windows.create).toBeDefined();
+  });
+});
--- a/packages/extension/tests/integration/MANUAL_TESTING_CHECKLIST.md
+++ b/packages/extension/tests/integration/MANUAL_TESTING_CHECKLIST.md
@@ -0,0 +1,421 @@
+# Manual Testing Checklist - Multi-Window Management
+
+This checklist covers comprehensive manual testing of the TLSN extension's multi-window management feature.
+
+## Pre-Testing Setup
+
+- [ ] Build extension: `npm run build`
+- [ ] Load unpacked extension in Chrome from `build/` directory
+- [ ] Open test page: `tests/integration/test-page.html`
+- [ ] Open Chrome DevTools Console (F12)
+- [ ] Verify extension icon appears in toolbar
+
+## Test Environment
+
+**Browser**: Chrome (version: ________)
+**Extension Version**: 0.1.0
+**Test Date**: ___________
+**Tester**: ___________
+
+---
+
+## 1. Basic Window Opening
+
+### 1.1 Single Window Test
+- [ ] Click "Open example.com" button
+- [ ] **Expected**: New popup window opens with example.com
+- [ ] **Expected**: TLSN overlay appears with dark background
+- [ ] **Expected**: Overlay shows "TLSN Plugin In Progress" title
+- [ ] **Expected**: Request list updates as page loads
+- [ ] **Expected**: Console shows successful window creation logs
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 1.2 Different URLs
+- [ ] Open httpbin.org
+- [ ] Open jsonplaceholder.typicode.com
+- [ ] **Expected**: Each window opens independently
+- [ ] **Expected**: Each overlay tracks its own requests
+- [ ] **Expected**: No cross-contamination between windows
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 2. Custom URL Testing
+
+### 2.1 Valid HTTP URL
+- [ ] Enter `http://example.com` in custom URL field
+- [ ] Click "Open URL"
+- [ ] **Expected**: Window opens successfully
+- [ ] **Expected**: Overlay displays correctly
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 2.2 Valid HTTPS URL
+- [ ] Enter `https://github.com` in custom URL field
+- [ ] Click "Open URL"
+- [ ] **Expected**: Window opens successfully
+- [ ] **Expected**: Multiple requests appear in overlay
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 2.3 URL with Path
+- [ ] Enter `https://example.com/path/to/page`
+- [ ] Click "Open URL"
+- [ ] **Expected**: Full URL loads correctly
+- [ ] **Expected**: Requests tracked properly
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 2.4 URL with Query Parameters
+- [ ] Enter `https://example.com/search?q=test&lang=en`
+- [ ] Click "Open URL"
+- [ ] **Expected**: Query parameters preserved
+- [ ] **Expected**: Window opens normally
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 3. Window Options
+
+### 3.1 Custom Dimensions
+- [ ] Set width to 1200, height to 800
+- [ ] Keep "Show TLSN Overlay" checked
+- [ ] Click "Open with Custom Options"
+- [ ] **Expected**: Window opens with specified dimensions
+- [ ] **Expected**: Overlay visible
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 3.2 Small Window
+- [ ] Set width to 600, height to 400
+- [ ] Click "Open with Custom Options"
+- [ ] **Expected**: Small window opens
+- [ ] **Expected**: Overlay scales appropriately
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 3.3 Overlay Disabled
+- [ ] Uncheck "Show TLSN Overlay"
+- [ ] Click "Open with Custom Options"
+- [ ] **Expected**: Window opens WITHOUT overlay
+- [ ] **Expected**: Requests still tracked (check background console)
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 4. Multiple Windows
+
+### 4.1 Three Windows
+- [ ] Click "Open 3 Windows"
+- [ ] **Expected**: 3 windows open sequentially
+- [ ] **Expected**: Each has its own overlay
+- [ ] **Expected**: Window count updates to 3
+- [ ] **Expected**: No errors in console
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 4.2 Five Windows
+- [ ] Click "Open 5 Windows"
+- [ ] **Expected**: 5 windows open
+- [ ] **Expected**: All overlays functional
+- [ ] **Expected**: Window count updates correctly
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 4.3 Ten Windows (Stress Test)
+- [ ] Click "Open 10 Windows"
+- [ ] **Expected**: All 10 windows open
+- [ ] **Expected**: System remains responsive
+- [ ] **Expected**: Each window tracks requests independently
+- [ ] **Monitor**: Chrome memory usage (should not spike excessively)
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 5. Request Interception
+
+### 5.1 Request Display
+- [ ] Open any website with multiple resources (e.g., news site)
+- [ ] Observe overlay during page load
+- [ ] **Expected**: Requests appear in real-time
+- [ ] **Expected**: Each request shows method (GET/POST) and URL
+- [ ] **Expected**: Request count increases as page loads
+- [ ] **Expected**: Requests are ordered chronologically
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 5.2 Different Request Types
+- [ ] Open https://httpbin.org/forms/post
+- [ ] Submit the form
+- [ ] **Expected**: POST request appears in overlay
+- [ ] **Expected**: Both GET and POST requests tracked
+- [ ] **Expected**: Request method clearly labeled
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 5.3 Multiple Tabs in Single Window
+- [ ] Open a managed window
+- [ ] Open a new tab within that window (Ctrl+T)
+- [ ] Navigate to different URL in new tab
+- [ ] **Expected**: Only first tab's requests tracked
+- [ ] **Expected**: New tab's requests not added to overlay
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 6. Error Handling
+
+### 6.1 Invalid URL
+- [ ] Click "Invalid URL" button
+- [ ] **Expected**: Error message appears in test page
+- [ ] **Expected**: No window opens
+- [ ] **Expected**: Console shows validation error
+- [ ] **Expected**: Error count increments
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 6.2 Empty URL
+- [ ] Click "Empty URL" button
+- [ ] **Expected**: Error message shows
+- [ ] **Expected**: No window opens
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 6.3 JavaScript URL
+- [ ] Click "JavaScript URL" button
+- [ ] **Expected**: Client-side validation accepts (URL is valid)
+- [ ] **Expected**: Background script rejects with protocol error
+- [ ] **Expected**: No window opens
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 6.4 FTP URL
+- [ ] Click "FTP URL" button
+- [ ] **Expected**: Background rejects FTP protocol
+- [ ] **Expected**: Error message indicates only HTTP/HTTPS allowed
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 7. Window Cleanup
+
+### 7.1 Manual Close
+- [ ] Open 3 windows using test page
+- [ ] Manually close one window
+- [ ] **Expected**: Window closes normally
+- [ ] **Expected**: Background console shows cleanup log
+- [ ] **Expected**: No errors in console
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 7.2 Close All Windows
+- [ ] Open 5 windows
+- [ ] Close all windows manually
+- [ ] **Expected**: All windows close cleanly
+- [ ] **Expected**: Background shows cleanup for each
+- [ ] **Expected**: Memory usage drops (check Task Manager)
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 7.3 Rapid Open/Close
+- [ ] Open 3 windows quickly
+- [ ] Close them immediately in rapid succession
+- [ ] **Expected**: No race conditions or errors
+- [ ] **Expected**: All cleanup logs appear
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 8. Backward Compatibility
+
+### 8.1 Legacy sendMessage API
+- [ ] Click "Test Legacy sendMessage API" button
+- [ ] **Expected**: Window opens to https://x.com
+- [ ] **Expected**: Overlay appears
+- [ ] **Expected**: Requests tracked
+- [ ] **Expected**: Console shows legacy API handler used
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 9. Overlay Functionality
+
+### 9.1 Overlay Visibility
+- [ ] Open any window
+- [ ] **Expected**: Overlay appears after page loads (status: complete)
+- [ ] **Expected**: Overlay covers entire window
+- [ ] **Expected**: Dark semi-transparent background
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 9.2 Overlay Content
+- [ ] Check overlay text and styling
+- [ ] **Expected**: Title: "TLSN Plugin In Progress"
+- [ ] **Expected**: Subtitle: "Intercepting network requests from this window"
+- [ ] **Expected**: Request count displayed
+- [ ] **Expected**: Scrollable request list
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 9.3 Real-time Updates
+- [ ] Open a news website or social media
+- [ ] Watch overlay during page load
+- [ ] **Expected**: Request list updates dynamically
+- [ ] **Expected**: No flickering or UI glitches
+- [ ] **Expected**: Smooth scrolling in request list
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 10. Cross-Browser Compatibility (Optional)
+
+### 10.1 Firefox (with webextension-polyfill)
+- [ ] Load extension in Firefox
+- [ ] Run basic window opening tests
+- [ ] **Expected**: Similar behavior to Chrome
+
+**Result**: ☐ Pass ☐ Fail ☐ N/A
+**Notes**: _________________________________
+
+---
+
+## 11. Edge Cases
+
+### 11.1 Network Offline
+- [ ] Disconnect internet
+- [ ] Try opening a window
+- [ ] **Expected**: Window opens but page doesn't load
+- [ ] **Expected**: Overlay still appears
+- [ ] **Expected**: Minimal requests captured
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 11.2 Redirect URLs
+- [ ] Open `http://example.com` (redirects to HTTPS)
+- [ ] **Expected**: Redirect request captured
+- [ ] **Expected**: Final HTTPS page loads
+- [ ] **Expected**: Both requests in overlay
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 11.3 Very Long URL
+- [ ] Create URL with 1000+ character path
+- [ ] Open in window
+- [ ] **Expected**: URL handled correctly
+- [ ] **Expected**: Overlay truncates long URLs appropriately
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 11.4 Page with 100+ Requests
+- [ ] Open a complex site (e.g., CNN, BBC News)
+- [ ] **Expected**: All requests tracked
+- [ ] **Expected**: Overlay remains responsive
+- [ ] **Expected**: Scrolling works in request list
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## 12. Console Logs Verification
+
+### 12.1 Background Script Logs
+- [ ] Open background service worker console
+- [ ] Perform various operations
+- [ ] **Expected**: Clear log messages for each operation
+- [ ] **Expected**: Window registration logs with UUIDs
+- [ ] **Expected**: Request interception logs
+- [ ] **Expected**: Cleanup logs when windows close
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+### 12.2 Content Script Logs
+- [ ] Open DevTools in managed window
+- [ ] **Expected**: Content script loaded message
+- [ ] **Expected**: Overlay show/hide messages
+- [ ] **Expected**: Request update messages
+
+**Result**: ☐ Pass ☐ Fail
+**Notes**: _________________________________
+
+---
+
+## Summary
+
+**Total Tests**: ________
+**Passed**: ________
+**Failed**: ________
+**Pass Rate**: ________%
+
+## Critical Issues Found
+
+1. ________________________________________________
+2. ________________________________________________
+3. ________________________________________________
+
+## Minor Issues Found
+
+1. ________________________________________________
+2. ________________________________________________
+3. ________________________________________________
+
+## Recommendations
+
+________________________________________________
+________________________________________________
+________________________________________________
+
+## Sign-off
+
+**Tester**: ___________________
+**Date**: ___________________
+**Signature**: ___________________
+
+---
+
+## Appendix: Performance Observations
+
+**Browser Memory Usage Before Tests**: ________ MB
+**Browser Memory Usage After Tests**: ________ MB
+**CPU Usage During Tests**: ________%
+**Any Performance Concerns**: ___________________
--- a/packages/extension/tests/integration/PERFORMANCE_TESTING.md
+++ b/packages/extension/tests/integration/PERFORMANCE_TESTING.md
@@ -0,0 +1,567 @@
+# Performance Testing Guidelines
+
+This document outlines performance testing procedures for the TLSN extension's multi-window management feature.
+
+## Objectives
+
+1. Verify extension performance with multiple concurrent windows
+2. Identify memory leaks
+3. Ensure responsive UI under load
+4. Measure request tracking overhead
+5. Validate cleanup efficiency
+
+---
+
+## Test Environment Setup
+
+### Required Tools
+
+1. **Chrome Task Manager**
+   - Access via: Menu → More Tools → Task Manager (Shift+Esc)
+   - Shows per-process memory and CPU usage
+
+2. **Chrome DevTools Performance Panel**
+   - Open DevTools (F12)
+   - Navigate to Performance tab
+   - Record and analyze performance profiles
+
+3. **Chrome Memory Profiler**
+   - DevTools → Memory tab
+   - Take heap snapshots before/after tests
+
+4. **System Monitor**
+   - Windows: Task Manager
+   - macOS: Activity Monitor
+   - Linux: System Monitor / htop
+
+### Baseline Metrics
+
+Before running performance tests, establish baseline metrics:
+
+```
+Extension with NO windows open:
+- Memory usage: ________ MB
+- CPU usage: ________%
+- Service worker memory: ________ MB
+```
+
+---
+
+## Test 1: Multiple Windows Load Test
+
+### Objective
+Verify extension handles 5-10 concurrent windows efficiently.
+
+### Procedure
+
+1. **Setup**
+   - Close all browser windows except test page
+   - Clear browser cache
+   - Restart browser
+   - Take initial memory snapshot
+
+2. **Test Execution**
+   - Open test page: `tests/integration/test-page.html`
+   - Click "Open 5 Windows" button
+   - Wait for all windows to fully load
+   - Let windows remain idle for 2 minutes
+   - Take memory snapshot
+   - Open Chrome Task Manager
+
+3. **Measurements**
+   - Memory per window: ________ MB
+   - Total extension memory: ________ MB
+   - Service worker memory: ________ MB
+   - CPU usage during load: ________%
+   - CPU usage at idle: ________%
+
+4. **Repeat with 10 Windows**
+   - Click "Open 10 Windows"
+   - Record same metrics
+   - Compare growth rate
+
+### Expected Results
+
+- **Memory per window**: < 50 MB
+- **Total extension memory**: < 200 MB for 10 windows
+- **CPU at idle**: < 1%
+- **UI responsiveness**: No lag in overlay updates
+
+### Acceptance Criteria
+
+☐ Memory usage scales linearly (not exponentially)
+☐ No memory growth during idle period
+☐ CPU usage returns to baseline after page loads
+☐ All overlays remain functional
+☐ No console errors
+
+---
+
+## Test 2: Memory Leak Detection
+
+### Objective
+Ensure no memory leaks when windows are opened and closed repeatedly.
+
+### Procedure
+
+1. **Baseline**
+   - Take heap snapshot (DevTools → Memory → Heap Snapshot)
+   - Note initial memory usage
+
+2. **Open/Close Cycle** (Repeat 10 times)
+   - Open 5 windows
+   - Wait 10 seconds
+   - Close all 5 windows
+   - Wait 10 seconds
+   - Force garbage collection (DevTools → Memory → Collect garbage)
+
+3. **Final Measurement**
+   - Take heap snapshot
+   - Compare with baseline
+   - Analyze retained objects
+
+### Expected Results
+
+- **Memory after 10 cycles**: Within 10% of baseline
+- **Detached DOM nodes**: 0
+- **Event listeners**: All cleaned up
+- **WindowManager map**: Empty after all windows closed
+
+### Red Flags
+
+⚠️ Memory continuously increasing after each cycle
+⚠️ Detached DOM nodes accumulating
+⚠️ Event listeners not being removed
+⚠️ WindowManager retaining closed windows
+
+### Acceptance Criteria
+
+☐ Memory returns to baseline (±10%)
+☐ No detached DOM nodes
+☐ WindowManager.getAllWindows() returns empty map
+☐ Garbage collection clears temporary objects
+
+---
+
+## Test 3: High-Traffic Site Performance
+
+### Objective
+Test performance with sites that generate many HTTP requests.
+
+### Test Sites
+
+1. **News Sites** (100+ requests)
+   - https://cnn.com
+   - https://bbc.com
+   - https://nytimes.com
+
+2. **Social Media** (continuous requests)
+   - https://twitter.com
+   - https://reddit.com
+
+3. **E-commerce** (images/scripts)
+   - https://amazon.com
+   - https://ebay.com
+
+### Procedure
+
+1. Open each site in managed window
+2. Let page fully load
+3. Scroll through entire page
+4. Measure:
+   - Total requests captured: ________
+   - Memory per window: ________ MB
+   - Page load time vs. without extension: ________ seconds
+   - Overlay update latency: ________ ms
+
+### Expected Results
+
+- **Requests tracked**: All HTTP/HTTPS requests
+- **Overhead per request**: < 1 KB
+- **Overlay update latency**: < 100ms
+- **Page load overhead**: < 10%
+
+### Acceptance Criteria
+
+☐ All requests captured accurately
+☐ No requests dropped
+☐ Overlay scrolling remains smooth
+☐ Page performance not significantly impacted
+☐ Memory usage stays within bounds
+
+---
+
+## Test 4: Request Tracking Overhead
+
+### Objective
+Measure the overhead of request interception and tracking.
+
+### Procedure
+
+1. **Without Extension**
+   - Disable TLSN extension
+   - Open https://httpbin.org/get
+   - Record page load time (DevTools → Network → Load time)
+   - Run 10 times, calculate average
+
+2. **With Extension (Unmanaged Window)**
+   - Enable extension
+   - Open https://httpbin.org/get in regular browser window
+   - Record page load time
+   - Run 10 times, calculate average
+
+3. **With Extension (Managed Window)**
+   - Use `window.tlsn.open('https://httpbin.org/get')`
+   - Record page load time
+   - Run 10 times, calculate average
+
+### Measurements
+
+| Scenario | Avg Load Time | Overhead |
+|----------|---------------|----------|
+| No extension | ________ ms | 0% |
+| Extension (regular) | ________ ms | ________% |
+| Extension (managed) | ________ ms | ________% |
+
+### Expected Results
+
+- **Overhead (regular window)**: < 5%
+- **Overhead (managed window)**: < 15%
+
+### Acceptance Criteria
+
+☐ Request interception overhead is minimal
+☐ User-perceivable page load time not significantly affected
+☐ No network errors introduced by interception
+
+---
+
+## Test 5: Cleanup Efficiency
+
+### Objective
+Verify window cleanup is fast and thorough.
+
+### Procedure
+
+1. **Setup**
+   - Open 10 managed windows
+   - Take memory snapshot
+
+2. **Close All Windows**
+   - Close all 10 windows
+   - Immediately check background console logs
+   - Wait 5 seconds
+   - Force garbage collection
+   - Take memory snapshot
+
+3. **Verify Cleanup**
+   - Check `windowManager.getAllWindows().size` (should be 0)
+   - Check for orphaned event listeners
+   - Check for remaining overlay DOM elements
+
+### Measurements
+
+- **Cleanup time per window**: ________ ms
+- **Total cleanup time**: ________ ms
+- **Memory released**: ________ MB
+
+### Expected Results
+
+- **Cleanup time per window**: < 50ms
+- **Memory released**: > 80% of managed window memory
+- **All resources cleaned up**: Yes
+
+### Acceptance Criteria
+
+☐ All windows removed from WindowManager
+☐ No orphaned DOM elements
+☐ No remaining event listeners
+☐ Memory released to OS
+☐ No errors during cleanup
+
+---
+
+## Test 6: Concurrent Request Handling
+
+### Objective
+Verify extension handles simultaneous requests from multiple windows.
+
+### Procedure
+
+1. Open 5 windows to different sites simultaneously
+2. All sites should load at same time
+3. Monitor:
+   - Request interception in each window
+   - Overlay updates
+   - Console for errors
+
+### Expected Results
+
+- **All requests tracked**: Yes, in correct windows
+- **No cross-window contamination**: Requests don't leak between windows
+- **Overlay updates**: All overlays update correctly
+- **Performance**: No significant slowdown
+
+### Acceptance Criteria
+
+☐ Each window tracks only its own requests
+☐ No race conditions in WindowManager
+☐ All overlays functional
+☐ No console errors
+
+---
+
+## Test 7: Long-Running Window Test
+
+### Objective
+Verify no memory leaks or performance degradation over time.
+
+### Procedure
+
+1. Open 3 managed windows to high-traffic sites
+2. Let run for 30 minutes
+3. Periodically refresh pages (every 5 minutes)
+4. Monitor memory usage every 5 minutes
+
+### Memory Tracking Table
+
+| Time | Window 1 | Window 2 | Window 3 | Total | Service Worker |
+|------|----------|----------|----------|-------|----------------|
+| 0 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 5 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 10 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 15 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 20 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 25 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+| 30 min | ___ MB | ___ MB | ___ MB | ___ MB | ___ MB |
+
+### Expected Results
+
+- **Memory growth**: < 20% over 30 minutes
+- **Request array size**: Bounded (not growing infinitely)
+- **Performance**: Consistent throughout test
+
+### Acceptance Criteria
+
+☐ Memory usage remains stable
+☐ No continuous memory growth trend
+☐ Overlays remain responsive
+☐ Request tracking still accurate
+
+---
+
+## Test 8: Periodic Cleanup Verification
+
+### Objective
+Verify the periodic cleanup (5-minute interval) works correctly.
+
+### Procedure
+
+1. Open 3 managed windows
+2. Manually close browser windows (not via extension)
+3. Wait 6 minutes
+4. Check background console for cleanup logs
+5. Verify WindowManager state
+
+### Expected Results
+
+- **Cleanup runs**: After ~5 minutes
+- **Invalid windows detected**: Yes
+- **Cleanup successful**: All closed windows removed
+
+### Acceptance Criteria
+
+☐ Periodic cleanup timer fires
+☐ Invalid windows detected and removed
+☐ Cleanup logs appear in console
+☐ No errors during automated cleanup
+
+---
+
+## Baseline Performance Targets
+
+### Memory Usage
+
+| Scenario | Target | Maximum |
+|----------|--------|---------|
+| Extension installed (idle) | < 10 MB | 20 MB |
+| 1 managed window | < 30 MB | 50 MB |
+| 5 managed windows | < 120 MB | 200 MB |
+| 10 managed windows | < 220 MB | 350 MB |
+
+### CPU Usage
+
+| Scenario | Target | Maximum |
+|----------|--------|---------|
+| Idle | < 0.1% | 1% |
+| During page load | < 5% | 15% |
+| Overlay update | < 1% | 3% |
+
+### Request Processing
+
+| Metric | Target | Maximum |
+|--------|--------|---------|
+| Request interception overhead | < 1ms | 5ms |
+| Overlay update latency | < 50ms | 200ms |
+| Memory per request | < 500 bytes | 2 KB |
+
+### Cleanup Performance
+
+| Metric | Target | Maximum |
+|--------|--------|---------|
+| Window cleanup time | < 20ms | 100ms |
+| Memory release after cleanup | > 90% | > 70% |
+
+---
+
+## Performance Issues to Watch For
+
+### Critical Issues
+
+⛔ **Memory leaks** - Memory continuously growing
+⛔ **High CPU usage** - > 10% when idle
+⛔ **UI freezing** - Overlay becomes unresponsive
+⛔ **Request drops** - Not all requests captured
+⛔ **Crash or hang** - Extension becomes unresponsive
+
+### Warning Signs
+
+⚠️ Memory growth > 20% over 30 minutes
+⚠️ Cleanup takes > 100ms per window
+⚠️ Page load overhead > 20%
+⚠️ Overlay update latency > 200ms
+
+---
+
+## Tools and Commands
+
+### Chrome Task Manager
+```
+Shift+Esc (Windows/Linux)
+Cmd+Opt+Esc (macOS)
+```
+
+### Force Garbage Collection (DevTools Console)
+```javascript
+// Run in DevTools Console
+performance.memory; // Check current memory
+```
+
+### Check WindowManager State (Background Console)
+```javascript
+// Access background service worker console
+// chrome://extensions → TLSN Extension → Service worker "Inspect"
+
+// Check managed windows
+windowManager.getAllWindows();
+
+// Check specific window
+windowManager.getWindow(windowId);
+```
+
+### Monitor Extension Memory
+```bash
+# Chrome flags for debugging
+chrome --enable-precise-memory-info
+```
+
+---
+
+## Reporting Format
+
+### Performance Test Report Template
+
+```
+TLSN Extension - Performance Test Report
+Date: ___________
+Tester: ___________
+Chrome Version: ___________
+OS: ___________
+
+## Test Results Summary
+
+✅ Passed Tests: _____ / _____
+❌ Failed Tests: _____ / _____
+
+## Memory Usage
+
+- Baseline: _____ MB
+- With 5 windows: _____ MB (_____ MB/window)
+- With 10 windows: _____ MB (_____ MB/window)
+- After cleanup: _____ MB
+
+## CPU Usage
+
+- Idle: _____%
+- During load: _____%
+- Average: _____%
+
+## Critical Issues
+
+1. ___________________________________
+2. ___________________________________
+
+## Performance Bottlenecks
+
+1. ___________________________________
+2. ___________________________________
+
+## Recommendations
+
+1. ___________________________________
+2. ___________________________________
+
+## Conclusion
+
+☐ Performance meets all targets
+☐ Performance meets most targets with minor issues
+☐ Performance issues require optimization
+☐ Critical performance problems found
+```
+
+---
+
+## Continuous Performance Monitoring
+
+### Automated Metrics (Future)
+
+Consider adding automated performance tests:
+
+1. **Unit test performance assertions**
+   ```javascript
+   it('should register window in < 50ms', async () => {
+     const start = performance.now();
+     await windowManager.registerWindow(config);
+     const duration = performance.now() - start;
+     expect(duration).toBeLessThan(50);
+   });
+   ```
+
+2. **Memory leak detection in CI/CD**
+   - Run open/close cycles
+   - Assert memory returns to baseline
+
+3. **Bundle size monitoring**
+   - Track extension build size
+   - Alert on significant increases
+
+---
+
+## Performance Optimization Checklist
+
+If performance issues are found:
+
+☐ Profile code with Chrome DevTools Performance panel
+☐ Check for unnecessary re-renders in overlays
+☐ Verify event listeners are properly cleaned up
+☐ Look for memory retention in closures
+☐ Consider implementing request limits per window
+☐ Optimize request storage (e.g., use fixed-size buffer)
+☐ Review webRequest listener efficiency
+☐ Consider debouncing overlay updates
+
+---
+
+## Conclusion
+
+Regular performance testing ensures the TLSN extension remains fast and efficient as features are added. Use this document as a guide for both manual and automated performance validation.
--- a/packages/extension/tests/integration/README.md
+++ b/packages/extension/tests/integration/README.md
@@ -0,0 +1,261 @@
+# Integration Testing Suite
+
+This directory contains comprehensive integration and performance testing tools for the TLSN extension's multi-window management feature.
+
+## Quick Start
+
+### 1. Run Integration Tests
+
+```bash
+# Build the extension
+npm run build
+
+# Load extension in Chrome
+# 1. Navigate to chrome://extensions/
+# 2. Enable Developer Mode
+# 3. Click "Load unpacked"
+# 4. Select the build/ directory
+
+# Open test page
+open tests/integration/test-page.html
+# Or navigate to: file:///path/to/tlsn-extension/tests/integration/test-page.html
+```
+
+### 2. Run Manual Tests
+
+Follow the checklist in `MANUAL_TESTING_CHECKLIST.md`:
+- Print or open the checklist
+- Work through each test category
+- Check off completed tests
+- Document any issues found
+
+### 3. Run Performance Tests
+
+Follow the procedures in `PERFORMANCE_TESTING.md`:
+- Establish baseline metrics
+- Run each performance test
+- Document results
+- Compare against target metrics
+
+## Files
+
+### `test-page.html`
+**Interactive HTML test page** for exercising the `window.tlsn.open()` API.
+
+**Features:**
+- 6 test sections covering all functionality
+- Real-time statistics tracking
+- Custom URL input
+- Window options configuration
+- Error handling verification
+- Multiple window stress testing
+- Legacy API compatibility test
+
+**Usage:**
+1. Open in any browser (works as file:// URL)
+2. Ensure TLSN extension is installed
+3. Click buttons to run tests
+4. Monitor status messages and console logs
+
+### `MANUAL_TESTING_CHECKLIST.md`
+**Comprehensive manual testing checklist** with 50+ test cases.
+
+**Test Categories:**
+1. Basic Window Opening
+2. Custom URL Testing
+3. Window Options
+4. Multiple Windows
+5. Request Interception
+6. Error Handling
+7. Window Cleanup
+8. Backward Compatibility
+9. Overlay Functionality
+10. Cross-Browser Compatibility (optional)
+11. Edge Cases
+12. Console Logs Verification
+
+**Usage:**
+1. Print or open in editor
+2. Follow each test step
+3. Mark pass/fail for each test
+4. Document issues in notes section
+5. Complete summary and sign-off
+
+### `PERFORMANCE_TESTING.md`
+**Detailed performance testing guidelines** and procedures.
+
+**Test Suite:**
+1. Multiple Windows Load Test
+2. Memory Leak Detection
+3. High-Traffic Site Performance
+4. Request Tracking Overhead
+5. Cleanup Efficiency
+6. Concurrent Request Handling
+7. Long-Running Window Test (30 min)
+8. Periodic Cleanup Verification
+
+**Baseline Targets:**
+- Memory per window: < 50 MB
+- CPU at idle: < 1%
+- Request interception overhead: < 1ms
+- Cleanup time per window: < 20ms
+
+**Usage:**
+1. Follow test procedures in order
+2. Record measurements in provided tables
+3. Compare against baseline targets
+4. Document performance issues
+5. Generate performance test report
+
+## Test Flow
+
+```
+┌─────────────────────────────────────────────────┐
+│ 1. Unit Tests (npm test)                       │
+│    - WindowManager tests (30 tests)            │
+│    - Type definition tests (11 tests)          │
+│    - Client API tests (17 tests)               │
+│    - UUID tests (7 tests)                      │
+│    Result: All 72 tests passing ✅              │
+└─────────────────────────────────────────────────┘
+                       ↓
+┌─────────────────────────────────────────────────┐
+│ 2. Integration Tests (test-page.html)          │
+│    - Open test page in browser                 │
+│    - Run automated test scenarios              │
+│    - Verify window.tlsn.open() API             │
+│    - Check overlay functionality               │
+│    Result: Visual inspection + console logs    │
+└─────────────────────────────────────────────────┘
+                       ↓
+┌─────────────────────────────────────────────────┐
+│ 3. Manual Testing (MANUAL_TESTING_CHECKLIST)   │
+│    - Systematic verification of all features   │
+│    - Edge case testing                         │
+│    - Cross-browser testing (optional)          │
+│    - Documentation of issues                   │
+│    Result: Completed checklist with sign-off   │
+└─────────────────────────────────────────────────┘
+                       ↓
+┌─────────────────────────────────────────────────┐
+│ 4. Performance Testing (PERFORMANCE_TESTING)   │
+│    - Memory usage measurement                  │
+│    - CPU usage monitoring                      │
+│    - Memory leak detection                     │
+│    - Load testing with multiple windows        │
+│    Result: Performance test report             │
+└─────────────────────────────────────────────────┘
+```
+
+## Testing Best Practices
+
+### Before Testing
+- [ ] Build extension with latest changes: `npm run build`
+- [ ] Clear browser cache and restart
+- [ ] Close unnecessary browser tabs
+- [ ] Open Chrome Task Manager (Shift+Esc)
+- [ ] Open background service worker console
+
+### During Testing
+- [ ] Monitor console logs (both page and background)
+- [ ] Check for errors or warnings
+- [ ] Verify overlay appearance and content
+- [ ] Test in incognito mode (if applicable)
+- [ ] Document unexpected behavior
+
+### After Testing
+- [ ] Clean up opened windows
+- [ ] Check for memory leaks
+- [ ] Verify background cleanup logs
+- [ ] Document all findings
+- [ ] Create bug reports for issues
+
+## Common Issues and Troubleshooting
+
+### Issue: "window.tlsn not available"
+**Cause**: Extension not loaded or content script failed to inject
+**Solution**:
+- Reload extension in chrome://extensions/
+- Check extension permissions
+- Verify content script injected: Check page console for "Content script loaded"
+
+### Issue: Overlay doesn't appear
+**Cause**: Content script not ready or showOverlay=false
+**Solution**:
+- Check tab status (must be 'complete')
+- Verify content script console logs
+- Check showOverlay parameter in test
+
+### Issue: Requests not tracked
+**Cause**: Window not managed or webRequest listener issue
+**Solution**:
+- Verify window opened via window.tlsn.open()
+- Check background console for registration log
+- Ensure URL is HTTP/HTTPS (not file://)
+
+### Issue: High memory usage
+**Cause**: Memory leak or too many requests stored
+**Solution**:
+- Run memory leak detection test
+- Check WindowManager for orphaned windows
+- Consider implementing request limit per window
+
+## Reporting Issues
+
+When reporting issues found during testing, include:
+
+1. **Test Details**
+   - Which test was running
+   - Step-by-step reproduction
+   - Expected vs actual behavior
+
+2. **Environment**
+   - Chrome version
+   - OS version
+   - Extension version
+
+3. **Evidence**
+   - Console logs (both page and background)
+   - Screenshots of issues
+   - Performance metrics (if applicable)
+
+4. **Severity**
+   - Critical: Blocks core functionality
+   - Major: Significant feature broken
+   - Minor: Edge case or cosmetic issue
+
+## Continuous Integration (Future)
+
+Consider automating tests in CI/CD:
+
+```yaml
+# Example GitHub Actions workflow
+- name: Run unit tests
+  run: npm test
+
+- name: Build extension
+  run: npm run build
+
+- name: Run integration tests (headless)
+  run: npm run test:integration
+  # Would use Puppeteer or Playwright
+```
+
+## Resources
+
+- [Chrome Extension Documentation](https://developer.chrome.com/docs/extensions/)
+- [webextension-polyfill](https://github.com/mozilla/webextension-polyfill)
+- [Vitest Documentation](https://vitest.dev/)
+- [Chrome DevTools Performance](https://developer.chrome.com/docs/devtools/performance/)
+
+## Contributing
+
+When adding new tests:
+1. Add test cases to appropriate checklist
+2. Update performance baselines if needed
+3. Document any new test procedures
+4. Update this README if adding new files
+
+---
+
+**Questions?** Check the main [CLAUDE.md](../../CLAUDE.md) for architecture documentation.
--- a/packages/extension/tests/integration/test-page.html
+++ b/packages/extension/tests/integration/test-page.html
@@ -0,0 +1,566 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>TLSN Extension - Integration Test Page</title>
+  <style>
+    * {
+      margin: 0;
+      padding: 0;
+      box-sizing: border-box;
+    }
+
+    body {
+      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
+      line-height: 1.6;
+      padding: 20px;
+      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+      min-height: 100vh;
+    }
+
+    .container {
+      max-width: 900px;
+      margin: 0 auto;
+      background: white;
+      border-radius: 12px;
+      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
+      padding: 40px;
+    }
+
+    h1 {
+      color: #333;
+      margin-bottom: 10px;
+      font-size: 32px;
+    }
+
+    .subtitle {
+      color: #666;
+      margin-bottom: 30px;
+      font-size: 16px;
+    }
+
+    .section {
+      margin-bottom: 30px;
+      padding: 20px;
+      background: #f8f9fa;
+      border-radius: 8px;
+      border-left: 4px solid #667eea;
+    }
+
+    .section h2 {
+      color: #333;
+      margin-bottom: 15px;
+      font-size: 20px;
+    }
+
+    .section p {
+      color: #666;
+      margin-bottom: 15px;
+    }
+
+    .button-group {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 10px;
+      margin-bottom: 15px;
+    }
+
+    button {
+      background: #667eea;
+      color: white;
+      border: none;
+      padding: 12px 24px;
+      border-radius: 6px;
+      cursor: pointer;
+      font-size: 14px;
+      font-weight: 500;
+      transition: all 0.2s;
+      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    }
+
+    button:hover {
+      background: #5568d3;
+      transform: translateY(-2px);
+      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
+    }
+
+    button:active {
+      transform: translateY(0);
+    }
+
+    button.secondary {
+      background: #6c757d;
+    }
+
+    button.secondary:hover {
+      background: #5a6268;
+    }
+
+    button.danger {
+      background: #dc3545;
+    }
+
+    button.danger:hover {
+      background: #c82333;
+    }
+
+    .input-group {
+      display: flex;
+      gap: 10px;
+      margin-bottom: 15px;
+    }
+
+    input {
+      flex: 1;
+      padding: 12px;
+      border: 2px solid #e0e0e0;
+      border-radius: 6px;
+      font-size: 14px;
+      transition: border-color 0.2s;
+    }
+
+    input:focus {
+      outline: none;
+      border-color: #667eea;
+    }
+
+    #status {
+      margin-top: 20px;
+      padding: 15px;
+      border-radius: 6px;
+      display: none;
+      font-size: 14px;
+    }
+
+    #status.success {
+      background: #d4edda;
+      color: #155724;
+      border: 1px solid #c3e6cb;
+      display: block;
+    }
+
+    #status.error {
+      background: #f8d7da;
+      color: #721c24;
+      border: 1px solid #f5c6cb;
+      display: block;
+    }
+
+    #status.info {
+      background: #d1ecf1;
+      color: #0c5460;
+      border: 1px solid #bee5eb;
+      display: block;
+    }
+
+    .instructions {
+      background: #fff3cd;
+      border: 1px solid #ffeeba;
+      padding: 15px;
+      border-radius: 6px;
+      margin-bottom: 20px;
+    }
+
+    .instructions h3 {
+      color: #856404;
+      margin-bottom: 10px;
+      font-size: 16px;
+    }
+
+    .instructions ol {
+      margin-left: 20px;
+      color: #856404;
+    }
+
+    .instructions li {
+      margin-bottom: 5px;
+    }
+
+    .stats {
+      display: flex;
+      gap: 20px;
+      margin-top: 15px;
+    }
+
+    .stat {
+      flex: 1;
+      padding: 15px;
+      background: white;
+      border-radius: 6px;
+      text-align: center;
+      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    }
+
+    .stat-value {
+      font-size: 32px;
+      font-weight: bold;
+      color: #667eea;
+      display: block;
+    }
+
+    .stat-label {
+      font-size: 12px;
+      color: #666;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+    }
+
+    code {
+      background: #f4f4f4;
+      padding: 2px 6px;
+      border-radius: 3px;
+      font-family: 'Monaco', 'Courier New', monospace;
+      font-size: 13px;
+      color: #d63384;
+    }
+
+    .checkbox-group {
+      margin: 10px 0;
+    }
+
+    .checkbox-group label {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      cursor: pointer;
+      padding: 8px;
+      border-radius: 4px;
+      transition: background 0.2s;
+    }
+
+    .checkbox-group label:hover {
+      background: #f0f0f0;
+    }
+
+    .checkbox-group input[type="checkbox"] {
+      width: 18px;
+      height: 18px;
+      cursor: pointer;
+    }
+  </style>
+</head>
+<body>
+  <div class="container">
+    <h1>🔒 TLSN Extension Integration Tests</h1>
+    <p class="subtitle">Test the window.tlsn.open() API with various scenarios</p>
+
+    <div class="instructions">
+      <h3>📋 Setup Instructions</h3>
+      <ol>
+        <li>Load the TLSN extension in Chrome (Developer Mode)</li>
+        <li>Navigate to this test page (or open as file://)</li>
+        <li>Click the buttons below to test different scenarios</li>
+        <li>Check the browser console for detailed logs</li>
+        <li>Verify overlays appear in opened windows</li>
+      </ol>
+    </div>
+
+    <!-- Basic Tests -->
+    <div class="section">
+      <h2>1. Basic Window Opening</h2>
+      <p>Test opening single windows with different URLs</p>
+
+      <div class="button-group">
+        <button onclick="openWindow('https://example.com')">
+          Open example.com
+        </button>
+        <button onclick="openWindow('https://httpbin.org/get')">
+          Open httpbin.org
+        </button>
+        <button onclick="openWindow('https://jsonplaceholder.typicode.com/posts')">
+          Open JSON Placeholder
+        </button>
+      </div>
+    </div>
+
+    <!-- Custom URL Test -->
+    <div class="section">
+      <h2>2. Custom URL Test</h2>
+      <p>Enter any URL to open in a new window</p>
+
+      <div class="input-group">
+        <input
+          type="text"
+          id="customUrl"
+          placeholder="https://example.com"
+          value="https://example.com"
+        >
+        <button onclick="openCustomUrl()">Open URL</button>
+      </div>
+    </div>
+
+    <!-- Window Options Test -->
+    <div class="section">
+      <h2>3. Window Options</h2>
+      <p>Test window.tlsn.open() with custom dimensions and overlay options</p>
+
+      <div class="input-group">
+        <input type="number" id="width" placeholder="Width" value="1200">
+        <input type="number" id="height" placeholder="Height" value="800">
+      </div>
+
+      <div class="checkbox-group">
+        <label>
+          <input type="checkbox" id="showOverlay" checked>
+          <span>Show TLSN Overlay</span>
+        </label>
+      </div>
+
+      <button onclick="openWithOptions()">
+        Open with Custom Options
+      </button>
+    </div>
+
+    <!-- Multiple Windows Test -->
+    <div class="section">
+      <h2>4. Multiple Windows</h2>
+      <p>Test opening multiple windows simultaneously</p>
+
+      <div class="button-group">
+        <button onclick="openMultipleWindows(3)">
+          Open 3 Windows
+        </button>
+        <button onclick="openMultipleWindows(5)">
+          Open 5 Windows
+        </button>
+        <button onclick="openMultipleWindows(10)">
+          Open 10 Windows
+        </button>
+      </div>
+
+      <div class="stats">
+        <div class="stat">
+          <span class="stat-value" id="windowCount">0</span>
+          <span class="stat-label">Windows Opened</span>
+        </div>
+        <div class="stat">
+          <span class="stat-value" id="errorCount">0</span>
+          <span class="stat-label">Errors</span>
+        </div>
+      </div>
+    </div>
+
+    <!-- Error Handling Tests -->
+    <div class="section">
+      <h2>5. Error Handling</h2>
+      <p>Test invalid URLs and error cases</p>
+
+      <div class="button-group">
+        <button class="danger" onclick="testInvalidUrl('not-a-url')">
+          Invalid URL
+        </button>
+        <button class="danger" onclick="testInvalidUrl('')">
+          Empty URL
+        </button>
+        <button class="danger" onclick="testInvalidUrl('javascript:alert(1)')">
+          JavaScript URL
+        </button>
+        <button class="danger" onclick="testInvalidUrl('ftp://example.com')">
+          FTP URL
+        </button>
+      </div>
+    </div>
+
+    <!-- Legacy API Test -->
+    <div class="section">
+      <h2>6. Backward Compatibility</h2>
+      <p>Test legacy API (TLSN_CONTENT_TO_EXTENSION)</p>
+
+      <button class="secondary" onclick="testLegacyAPI()">
+        Test Legacy sendMessage API
+      </button>
+    </div>
+
+    <!-- Status Display -->
+    <div id="status"></div>
+  </div>
+
+  <script>
+    let windowCount = 0;
+    let errorCount = 0;
+
+    // Check if window.tlsn is available
+    window.addEventListener('extension_loaded', () => {
+      showStatus('TLSN Extension loaded and ready!', 'success');
+    });
+
+    // Wait for extension to load
+    setTimeout(() => {
+      if (!window.tlsn) {
+        showStatus('⚠️ TLSN Extension not detected. Please install and enable the extension.', 'error');
+      } else {
+        showStatus('✅ TLSN Extension detected! You can now run tests.', 'success');
+      }
+    }, 1000);
+
+    // Basic window opening
+    async function openWindow(url) {
+      console.log(`[Test] Opening window: ${url}`);
+
+      if (!window.tlsn) {
+        showStatus('Error: window.tlsn not available. Is the extension installed?', 'error');
+        return;
+      }
+
+      try {
+        await window.tlsn.open(url);
+        windowCount++;
+        updateStats();
+        showStatus(`✅ Successfully opened: ${url}`, 'success');
+        console.log(`[Test] Window opened successfully`);
+      } catch (error) {
+        errorCount++;
+        updateStats();
+        showStatus(`❌ Error opening window: ${error.message}`, 'error');
+        console.error('[Test] Error:', error);
+      }
+    }
+
+    // Custom URL test
+    async function openCustomUrl() {
+      const url = document.getElementById('customUrl').value.trim();
+
+      if (!url) {
+        showStatus('Please enter a URL', 'error');
+        return;
+      }
+
+      await openWindow(url);
+    }
+
+    // Window with options
+    async function openWithOptions() {
+      const url = document.getElementById('customUrl').value.trim() || 'https://example.com';
+      const width = parseInt(document.getElementById('width').value) || 900;
+      const height = parseInt(document.getElementById('height').value) || 700;
+      const showOverlay = document.getElementById('showOverlay').checked;
+
+      console.log(`[Test] Opening window with options:`, { url, width, height, showOverlay });
+
+      if (!window.tlsn) {
+        showStatus('Error: window.tlsn not available', 'error');
+        return;
+      }
+
+      try {
+        await window.tlsn.open(url, { width, height, showOverlay });
+        windowCount++;
+        updateStats();
+        showStatus(`✅ Opened ${url} (${width}x${height}, overlay: ${showOverlay})`, 'success');
+      } catch (error) {
+        errorCount++;
+        updateStats();
+        showStatus(`❌ Error: ${error.message}`, 'error');
+        console.error('[Test] Error:', error);
+      }
+    }
+
+    // Multiple windows
+    async function openMultipleWindows(count) {
+      console.log(`[Test] Opening ${count} windows...`);
+      showStatus(`Opening ${count} windows...`, 'info');
+
+      const urls = [
+        'https://example.com',
+        'https://httpbin.org/get',
+        'https://jsonplaceholder.typicode.com/posts',
+        'https://api.github.com',
+        'https://www.wikipedia.org',
+        'https://developer.mozilla.org',
+        'https://stackoverflow.com',
+        'https://news.ycombinator.com',
+        'https://reddit.com',
+        'https://twitter.com',
+      ];
+
+      let successCount = 0;
+      let failCount = 0;
+
+      for (let i = 0; i < count; i++) {
+        const url = urls[i % urls.length];
+        try {
+          await window.tlsn.open(url);
+          successCount++;
+          windowCount++;
+        } catch (error) {
+          failCount++;
+          errorCount++;
+          console.error(`[Test] Failed to open window ${i + 1}:`, error);
+        }
+        // Small delay between windows
+        await new Promise(resolve => setTimeout(resolve, 100));
+      }
+
+      updateStats();
+      showStatus(`✅ Opened ${successCount}/${count} windows (${failCount} failed)`, successCount === count ? 'success' : 'error');
+    }
+
+    // Test invalid URLs
+    async function testInvalidUrl(url) {
+      console.log(`[Test] Testing invalid URL: ${url}`);
+
+      if (!window.tlsn) {
+        showStatus('Error: window.tlsn not available', 'error');
+        return;
+      }
+
+      try {
+        await window.tlsn.open(url);
+        errorCount++;
+        updateStats();
+        showStatus(`❌ Expected error but succeeded for: ${url}`, 'error');
+      } catch (error) {
+        showStatus(`✅ Correctly rejected invalid URL: ${error.message}`, 'success');
+        console.log('[Test] Correctly caught error:', error.message);
+      }
+    }
+
+    // Test legacy API
+    function testLegacyAPI() {
+      console.log('[Test] Testing legacy sendMessage API');
+
+      if (!window.tlsn) {
+        showStatus('Error: window.tlsn not available', 'error');
+        return;
+      }
+
+      if (typeof window.tlsn.sendMessage !== 'function') {
+        showStatus('⚠️ Legacy sendMessage method not available', 'error');
+        return;
+      }
+
+      try {
+        window.tlsn.sendMessage({ test: 'legacy API' });
+        showStatus('✅ Legacy API call sent (check x.com window opens)', 'success');
+      } catch (error) {
+        showStatus(`❌ Legacy API error: ${error.message}`, 'error');
+      }
+    }
+
+    // Update statistics
+    function updateStats() {
+      document.getElementById('windowCount').textContent = windowCount;
+      document.getElementById('errorCount').textContent = errorCount;
+    }
+
+    // Show status message
+    function showStatus(message, type) {
+      const statusEl = document.getElementById('status');
+      statusEl.textContent = message;
+      statusEl.className = type;
+
+      // Auto-hide after 5 seconds for success messages
+      if (type === 'success') {
+        setTimeout(() => {
+          statusEl.style.display = 'none';
+        }, 5000);
+      }
+    }
+
+    // Log to console when page loads
+    console.log('[Test Page] TLSN Integration Test Page Loaded');
+    console.log('[Test Page] Waiting for window.tlsn API...');
+  </script>
+</body>
+</html>
--- a/packages/extension/tests/setup.ts
+++ b/packages/extension/tests/setup.ts
@@ -0,0 +1,136 @@
+/**
+ * Vitest test setup file
+ *
+ * This file runs before all tests to set up the testing environment,
+ * including mocking browser APIs for Chrome extension testing.
+ */
+
+import { vi } from 'vitest';
+
+// Create a mock chrome object with runtime.id (required for webextension-polyfill)
+const chromeMock = {
+  runtime: {
+    id: 'test-extension-id',
+    sendMessage: vi.fn(),
+    onMessage: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+      hasListener: vi.fn(),
+    },
+    getURL: vi.fn((path: string) => `chrome-extension://test-id/${path}`),
+    onInstalled: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+    },
+    getContexts: vi.fn(),
+  },
+  windows: {
+    create: vi.fn(),
+    get: vi.fn(),
+    remove: vi.fn(),
+    update: vi.fn(),
+    onRemoved: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+    },
+  },
+  tabs: {
+    sendMessage: vi.fn(),
+    query: vi.fn(),
+    get: vi.fn(),
+    onUpdated: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+    },
+  },
+  webRequest: {
+    onBeforeRequest: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+    },
+    onBeforeSendHeaders: {
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+    },
+  },
+  storage: {
+    local: {
+      get: vi.fn(),
+      set: vi.fn(),
+      remove: vi.fn(),
+      clear: vi.fn(),
+    },
+    sync: {
+      get: vi.fn(),
+      set: vi.fn(),
+      remove: vi.fn(),
+      clear: vi.fn(),
+    },
+  },
+  offscreen: {
+    createDocument: vi.fn(),
+  },
+};
+
+// Set up chrome global for webextension-polyfill
+globalThis.chrome = chromeMock as any;
+
+// Mock webextension-polyfill
+vi.mock('webextension-polyfill', () => ({
+  default: {
+    runtime: {
+      id: 'test-extension-id',
+      sendMessage: vi.fn(),
+      onMessage: {
+        addListener: vi.fn(),
+        removeListener: vi.fn(),
+      },
+      getURL: vi.fn((path: string) => `chrome-extension://test-id/${path}`),
+    },
+    windows: {
+      create: vi.fn(),
+      get: vi.fn(),
+      onRemoved: {
+        addListener: vi.fn(),
+        removeListener: vi.fn(),
+      },
+    },
+    tabs: {
+      sendMessage: vi.fn(),
+      onUpdated: {
+        addListener: vi.fn(),
+        removeListener: vi.fn(),
+      },
+      query: vi.fn(),
+    },
+    webRequest: {
+      onBeforeRequest: {
+        addListener: vi.fn(),
+        removeListener: vi.fn(),
+      },
+      onBeforeSendHeaders: {
+        addListener: vi.fn(),
+        removeListener: vi.fn(),
+      },
+    },
+    storage: {
+      local: {
+        get: vi.fn(),
+        set: vi.fn(),
+        remove: vi.fn(),
+        clear: vi.fn(),
+      },
+      sync: {
+        get: vi.fn(),
+        set: vi.fn(),
+        remove: vi.fn(),
+        clear: vi.fn(),
+      },
+    },
+  },
+}));
+
+// Reset mocks before each test
+beforeEach(() => {
+  vi.clearAllMocks();
+});
--- a/packages/extension/tests/types/window-manager.test.ts
+++ b/packages/extension/tests/types/window-manager.test.ts
@@ -0,0 +1,280 @@
+/**
+ * Type safety tests for WindowManager types
+ *
+ * These tests verify that the type definitions are correctly structured
+ * and can be used as expected throughout the codebase.
+ */
+
+import { describe, it, expect } from 'vitest';
+import type {
+  WindowRegistration,
+  InterceptedRequest,
+  ManagedWindow,
+  IWindowManager,
+} from '../../src/types/window-manager';
+
+describe('WindowManager Type Definitions', () => {
+  describe('WindowRegistration', () => {
+    it('should accept valid window registration config', () => {
+      const config: WindowRegistration = {
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+        showOverlay: true,
+      };
+
+      expect(config.id).toBe(123);
+      expect(config.tabId).toBe(456);
+      expect(config.url).toBe('https://example.com');
+      expect(config.showOverlay).toBe(true);
+    });
+
+    it('should allow showOverlay to be optional', () => {
+      const config: WindowRegistration = {
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+      };
+
+      expect(config.showOverlay).toBeUndefined();
+    });
+
+    it('should enforce required fields', () => {
+      // @ts-expect-error - missing required fields
+      const invalid: WindowRegistration = {
+        id: 123,
+      };
+
+      expect(invalid).toBeDefined();
+    });
+  });
+
+  describe('InterceptedRequest', () => {
+    it('should accept valid intercepted request', () => {
+      const request: InterceptedRequest = {
+        id: 'req-123',
+        method: 'GET',
+        url: 'https://api.example.com/data',
+        timestamp: Date.now(),
+        tabId: 456,
+      };
+
+      expect(request.method).toBe('GET');
+      expect(request.url).toContain('api.example.com');
+      expect(request.timestamp).toBeGreaterThan(0);
+    });
+
+    it('should support different HTTP methods', () => {
+      const methods = ['GET', 'POST', 'PUT', 'DELETE', 'PATCH'];
+
+      methods.forEach((method) => {
+        const request: InterceptedRequest = {
+          id: `req-${method}`,
+          method,
+          url: 'https://example.com',
+          timestamp: Date.now(),
+          tabId: 456,
+        };
+
+        expect(request.method).toBe(method);
+      });
+    });
+  });
+
+  describe('ManagedWindow', () => {
+    it('should accept valid managed window', () => {
+      const window: ManagedWindow = {
+        id: 123,
+        uuid: '550e8400-e29b-41d4-a716-446655440000',
+        tabId: 456,
+        url: 'https://example.com',
+        createdAt: new Date(),
+        requests: [],
+        overlayVisible: false,
+        showOverlayWhenReady: true,
+      };
+
+      expect(window.id).toBe(123);
+      expect(window.uuid).toMatch(
+        /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/,
+      );
+      expect(window.requests).toEqual([]);
+      expect(window.overlayVisible).toBe(false);
+      expect(window.showOverlayWhenReady).toBe(true);
+    });
+
+    it('should allow requests array to contain InterceptedRequests', () => {
+      const window: ManagedWindow = {
+        id: 123,
+        uuid: '550e8400-e29b-41d4-a716-446655440000',
+        tabId: 456,
+        url: 'https://example.com',
+        createdAt: new Date(),
+        requests: [
+          {
+            id: 'req-1',
+            method: 'GET',
+            url: 'https://example.com/api',
+            timestamp: Date.now(),
+            tabId: 456,
+          },
+        ],
+        overlayVisible: true,
+        showOverlayWhenReady: false,
+      };
+
+      expect(window.requests).toHaveLength(1);
+      expect(window.requests[0].method).toBe('GET');
+    });
+  });
+
+  describe('IWindowManager', () => {
+    it('should define all required methods', () => {
+      // This test verifies that the interface shape is correct
+      // by creating a mock implementation
+      const mockWindowManager: IWindowManager = {
+        registerWindow: async (config: WindowRegistration) => ({
+          id: config.id,
+          uuid: 'test-uuid',
+          tabId: config.tabId,
+          url: config.url,
+          createdAt: new Date(),
+          requests: [],
+          overlayVisible: false,
+          showOverlayWhenReady: config.showOverlay !== false,
+        }),
+        closeWindow: async (windowId: number) => {},
+        getWindow: (windowId: number) => undefined,
+        getWindowByTabId: (tabId: number) => undefined,
+        getAllWindows: () => new Map(),
+        addRequest: (windowId: number, request: InterceptedRequest) => {},
+        getWindowRequests: (windowId: number) => [],
+        showOverlay: async (windowId: number) => {},
+        hideOverlay: async (windowId: number) => {},
+        isOverlayVisible: (windowId: number) => false,
+        cleanupInvalidWindows: async () => {},
+      };
+
+      expect(mockWindowManager.registerWindow).toBeDefined();
+      expect(mockWindowManager.closeWindow).toBeDefined();
+      expect(mockWindowManager.getWindow).toBeDefined();
+      expect(mockWindowManager.getWindowByTabId).toBeDefined();
+      expect(mockWindowManager.getAllWindows).toBeDefined();
+      expect(mockWindowManager.addRequest).toBeDefined();
+      expect(mockWindowManager.getWindowRequests).toBeDefined();
+      expect(mockWindowManager.showOverlay).toBeDefined();
+      expect(mockWindowManager.hideOverlay).toBeDefined();
+      expect(mockWindowManager.isOverlayVisible).toBeDefined();
+      expect(mockWindowManager.cleanupInvalidWindows).toBeDefined();
+    });
+
+    it('should have correct method signatures', async () => {
+      const mockWindowManager: IWindowManager = {
+        registerWindow: async (config) => ({
+          id: config.id,
+          uuid: 'test-uuid',
+          tabId: config.tabId,
+          url: config.url,
+          createdAt: new Date(),
+          requests: [],
+          overlayVisible: false,
+          showOverlayWhenReady: config.showOverlay !== false,
+        }),
+        closeWindow: async (windowId) => {},
+        getWindow: (windowId) => undefined,
+        getWindowByTabId: (tabId) => undefined,
+        getAllWindows: () => new Map(),
+        addRequest: (windowId, request) => {},
+        getWindowRequests: (windowId) => [],
+        showOverlay: async (windowId) => {},
+        hideOverlay: async (windowId) => {},
+        isOverlayVisible: (windowId) => false,
+        cleanupInvalidWindows: async () => {},
+      };
+
+      // Test registerWindow returns Promise<ManagedWindow>
+      const result = await mockWindowManager.registerWindow({
+        id: 123,
+        tabId: 456,
+        url: 'https://example.com',
+      });
+
+      expect(result).toHaveProperty('id');
+      expect(result).toHaveProperty('uuid');
+      expect(result).toHaveProperty('tabId');
+      expect(result).toHaveProperty('url');
+      expect(result).toHaveProperty('createdAt');
+      expect(result).toHaveProperty('requests');
+      expect(result).toHaveProperty('overlayVisible');
+      expect(result).toHaveProperty('showOverlayWhenReady');
+
+      // Test getWindowRequests returns array
+      const requests = mockWindowManager.getWindowRequests(123);
+      expect(Array.isArray(requests)).toBe(true);
+
+      // Test isOverlayVisible returns boolean
+      const visible = mockWindowManager.isOverlayVisible(123);
+      expect(typeof visible).toBe('boolean');
+    });
+  });
+
+  describe('Type Integration', () => {
+    it('should allow requests to be added to windows', () => {
+      const window: ManagedWindow = {
+        id: 123,
+        uuid: 'test-uuid',
+        tabId: 456,
+        url: 'https://example.com',
+        createdAt: new Date(),
+        requests: [],
+        overlayVisible: false,
+        showOverlayWhenReady: false,
+      };
+
+      const request: InterceptedRequest = {
+        id: 'req-1',
+        method: 'POST',
+        url: 'https://example.com/api',
+        timestamp: Date.now(),
+        tabId: 456,
+      };
+
+      window.requests.push(request);
+
+      expect(window.requests).toHaveLength(1);
+      expect(window.requests[0]).toBe(request);
+    });
+
+    it('should support multiple requests in a window', () => {
+      const window: ManagedWindow = {
+        id: 123,
+        uuid: 'test-uuid',
+        tabId: 456,
+        url: 'https://example.com',
+        createdAt: new Date(),
+        requests: [
+          {
+            id: 'req-1',
+            method: 'GET',
+            url: 'https://example.com/page',
+            timestamp: Date.now(),
+            tabId: 456,
+          },
+          {
+            id: 'req-2',
+            method: 'POST',
+            url: 'https://example.com/api',
+            timestamp: Date.now() + 1000,
+            tabId: 456,
+          },
+        ],
+        overlayVisible: true,
+        showOverlayWhenReady: false,
+      };
+
+      expect(window.requests).toHaveLength(2);
+      expect(window.requests[0].method).toBe('GET');
+      expect(window.requests[1].method).toBe('POST');
+    });
+  });
+});
--- a/packages/extension/tests/utils/url-validator.test.ts
+++ b/packages/extension/tests/utils/url-validator.test.ts
@@ -0,0 +1,326 @@
+/**
+ * Tests for URL validation utilities
+ *
+ * Ensures robust URL validation for security and reliability.
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  validateUrl,
+  sanitizeUrl,
+  isHttpUrl,
+  getUrlErrorMessage,
+} from '../../src/utils/url-validator';
+
+describe('URL Validator', () => {
+  describe('validateUrl', () => {
+    describe('Valid URLs', () => {
+      it('should accept valid HTTP URL', () => {
+        const result = validateUrl('http://example.com');
+
+        expect(result.valid).toBe(true);
+        expect(result.error).toBeUndefined();
+        expect(result.url).toBeDefined();
+        expect(result.url?.protocol).toBe('http:');
+      });
+
+      it('should accept valid HTTPS URL', () => {
+        const result = validateUrl('https://example.com');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.protocol).toBe('https:');
+      });
+
+      it('should accept URL with path', () => {
+        const result = validateUrl('https://example.com/path/to/page');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.pathname).toBe('/path/to/page');
+      });
+
+      it('should accept URL with query parameters', () => {
+        const result = validateUrl('https://example.com/search?q=test&lang=en');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.search).toBe('?q=test&lang=en');
+      });
+
+      it('should accept URL with fragment', () => {
+        const result = validateUrl('https://example.com/page#section');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.hash).toBe('#section');
+      });
+
+      it('should accept URL with port', () => {
+        const result = validateUrl('https://example.com:8080/path');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.port).toBe('8080');
+      });
+
+      it('should accept URL with subdomain', () => {
+        const result = validateUrl('https://api.example.com');
+
+        expect(result.valid).toBe(true);
+        expect(result.url?.hostname).toBe('api.example.com');
+      });
+    });
+
+    describe('Invalid URLs - Empty/Null', () => {
+      it('should reject empty string', () => {
+        const result = validateUrl('');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('non-empty string');
+      });
+
+      it('should reject whitespace only', () => {
+        const result = validateUrl('   ');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('whitespace');
+      });
+
+      it('should reject null', () => {
+        const result = validateUrl(null);
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('non-empty string');
+      });
+
+      it('should reject undefined', () => {
+        const result = validateUrl(undefined);
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('non-empty string');
+      });
+
+      it('should reject number', () => {
+        const result = validateUrl(123);
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('non-empty string');
+      });
+
+      it('should reject object', () => {
+        const result = validateUrl({ url: 'https://example.com' });
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('non-empty string');
+      });
+    });
+
+    describe('Invalid URLs - Malformed', () => {
+      it('should reject invalid URL format', () => {
+        const result = validateUrl('not-a-url');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid URL format');
+      });
+
+      it('should reject URL without protocol', () => {
+        const result = validateUrl('example.com');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid URL format');
+      });
+
+      it('should reject URL without hostname', () => {
+        const result = validateUrl('https://');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid URL format');
+      });
+    });
+
+    describe('Invalid URLs - Dangerous Protocols', () => {
+      it('should reject javascript: protocol', () => {
+        const result = validateUrl('javascript:alert(1)');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Dangerous protocol');
+        expect(result.error).toContain('javascript:');
+      });
+
+      it('should reject data: protocol', () => {
+        const result = validateUrl('data:text/html,<h1>Test</h1>');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Dangerous protocol');
+        expect(result.error).toContain('data:');
+      });
+
+      it('should reject file: protocol', () => {
+        const result = validateUrl('file:///etc/passwd');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Dangerous protocol');
+        expect(result.error).toContain('file:');
+      });
+
+      it('should reject blob: protocol', () => {
+        const result = validateUrl('blob:https://example.com/uuid');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Dangerous protocol');
+        expect(result.error).toContain('blob:');
+      });
+
+      it('should reject about: protocol', () => {
+        const result = validateUrl('about:blank');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Dangerous protocol');
+        expect(result.error).toContain('about:');
+      });
+    });
+
+    describe('Invalid URLs - Invalid Protocols', () => {
+      it('should reject FTP protocol', () => {
+        const result = validateUrl('ftp://example.com');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid protocol');
+        expect(result.error).toContain('ftp:');
+      });
+
+      it('should reject ws: protocol', () => {
+        const result = validateUrl('ws://example.com');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid protocol');
+      });
+
+      it('should reject custom protocol', () => {
+        const result = validateUrl('custom://example.com');
+
+        expect(result.valid).toBe(false);
+        expect(result.error).toContain('Invalid protocol');
+      });
+    });
+  });
+
+  describe('sanitizeUrl', () => {
+    it('should sanitize valid URL', () => {
+      const sanitized = sanitizeUrl('  https://example.com  ');
+
+      expect(sanitized).toBe('https://example.com/');
+    });
+
+    it('should preserve query parameters', () => {
+      const sanitized = sanitizeUrl('https://example.com/search?q=test');
+
+      expect(sanitized).toContain('?q=test');
+    });
+
+    it('should preserve fragments', () => {
+      const sanitized = sanitizeUrl('https://example.com#section');
+
+      expect(sanitized).toContain('#section');
+    });
+
+    it('should return null for invalid URL', () => {
+      const sanitized = sanitizeUrl('not-a-url');
+
+      expect(sanitized).toBeNull();
+    });
+
+    it('should return null for dangerous protocol', () => {
+      const sanitized = sanitizeUrl('javascript:alert(1)');
+
+      expect(sanitized).toBeNull();
+    });
+  });
+
+  describe('isHttpUrl', () => {
+    it('should return true for HTTP URL', () => {
+      expect(isHttpUrl('http://example.com')).toBe(true);
+    });
+
+    it('should return true for HTTPS URL', () => {
+      expect(isHttpUrl('https://example.com')).toBe(true);
+    });
+
+    it('should return false for FTP URL', () => {
+      expect(isHttpUrl('ftp://example.com')).toBe(false);
+    });
+
+    it('should return false for javascript: URL', () => {
+      expect(isHttpUrl('javascript:alert(1)')).toBe(false);
+    });
+
+    it('should return false for invalid URL', () => {
+      expect(isHttpUrl('not-a-url')).toBe(false);
+    });
+
+    it('should return false for empty string', () => {
+      expect(isHttpUrl('')).toBe(false);
+    });
+  });
+
+  describe('getUrlErrorMessage', () => {
+    it('should return valid message for valid URL', () => {
+      const message = getUrlErrorMessage('https://example.com');
+
+      expect(message).toBe('URL is valid');
+    });
+
+    it('should return error message for invalid URL', () => {
+      const message = getUrlErrorMessage('javascript:alert(1)');
+
+      expect(message).toContain('Dangerous protocol');
+    });
+
+    it('should return error message for malformed URL', () => {
+      const message = getUrlErrorMessage('not-a-url');
+
+      expect(message).toContain('Invalid URL format');
+    });
+
+    it('should return error message for empty URL', () => {
+      const message = getUrlErrorMessage('');
+
+      expect(message).toContain('non-empty string');
+    });
+  });
+
+  describe('Edge Cases', () => {
+    it('should handle URL with Unicode characters', () => {
+      const result = validateUrl('https://例え.com');
+
+      expect(result.valid).toBe(true);
+    });
+
+    it('should handle URL with encoded characters', () => {
+      const result = validateUrl('https://example.com/path%20with%20spaces');
+
+      expect(result.valid).toBe(true);
+    });
+
+    it('should handle localhost', () => {
+      const result = validateUrl('http://localhost:3000');
+
+      expect(result.valid).toBe(true);
+    });
+
+    it('should handle IP address', () => {
+      const result = validateUrl('http://192.168.1.1');
+
+      expect(result.valid).toBe(true);
+    });
+
+    it('should handle IPv6 address', () => {
+      const result = validateUrl('http://[::1]:8080');
+
+      expect(result.valid).toBe(true);
+    });
+
+    it('should trim whitespace from URL', () => {
+      const result = validateUrl('  https://example.com  ');
+
+      expect(result.valid).toBe(true);
+      expect(result.url?.href).toBe('https://example.com/');
+    });
+  });
+});
--- a/packages/extension/tests/utils/uuid.test.ts
+++ b/packages/extension/tests/utils/uuid.test.ts
@@ -0,0 +1,91 @@
+/**
+ * Tests for UUID generation functionality
+ *
+ * Verifies that the uuid package is correctly installed and
+ * generates valid UUIDs for WindowManager use.
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  v4 as uuidv4,
+  validate as uuidValidate,
+  version as uuidVersion,
+} from 'uuid';
+
+describe('UUID Generation', () => {
+  it('should generate valid UUID v4', () => {
+    const uuid = uuidv4();
+
+    expect(uuid).toBeDefined();
+    expect(typeof uuid).toBe('string');
+    expect(uuid).toMatch(
+      /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i,
+    );
+  });
+
+  it('should generate unique UUIDs', () => {
+    const uuid1 = uuidv4();
+    const uuid2 = uuidv4();
+    const uuid3 = uuidv4();
+
+    expect(uuid1).not.toBe(uuid2);
+    expect(uuid2).not.toBe(uuid3);
+    expect(uuid1).not.toBe(uuid3);
+  });
+
+  it('should validate correct UUIDs', () => {
+    const uuid = uuidv4();
+
+    expect(uuidValidate(uuid)).toBe(true);
+  });
+
+  it('should reject invalid UUIDs', () => {
+    expect(uuidValidate('not-a-uuid')).toBe(false);
+    expect(uuidValidate('12345')).toBe(false);
+    expect(uuidValidate('')).toBe(false);
+  });
+
+  it('should identify UUID version', () => {
+    const uuid = uuidv4();
+
+    expect(uuidVersion(uuid)).toBe(4);
+  });
+
+  it('should generate UUIDs suitable for WindowManager', () => {
+    // Simulate what WindowManager will do
+    const windowUUIDs = new Set<string>();
+
+    // Generate 100 UUIDs
+    for (let i = 0; i < 100; i++) {
+      const uuid = uuidv4();
+
+      // Verify it's valid
+      expect(uuidValidate(uuid)).toBe(true);
+
+      // Verify it's unique
+      expect(windowUUIDs.has(uuid)).toBe(false);
+
+      windowUUIDs.add(uuid);
+    }
+
+    expect(windowUUIDs.size).toBe(100);
+  });
+
+  it('should work with ManagedWindow type structure', () => {
+    interface ManagedWindowSimple {
+      id: number;
+      uuid: string;
+      url: string;
+    }
+
+    const window: ManagedWindowSimple = {
+      id: 123,
+      uuid: uuidv4(),
+      url: 'https://example.com',
+    };
+
+    expect(window.uuid).toBeDefined();
+    expect(uuidValidate(window.uuid)).toBe(true);
+    expect(window.uuid.length).toBe(36); // UUID v4 format with dashes
+  });
+});
--- a/packages/extension/tsconfig.json
+++ b/packages/extension/tsconfig.json
@@ -15,6 +15,7 @@
    "noEmit": false,
    "jsx": "react"
  },
+  "types": ["chrome"],
  "include": ["src"],
  "exclude": ["build", "node_modules"]
 }
--- a/packages/extension/utils/build.js
+++ b/packages/extension/utils/build.js
--- a/packages/extension/utils/env.js
+++ b/packages/extension/utils/env.js
--- a/packages/extension/utils/webserver.js
+++ b/packages/extension/utils/webserver.js
--- a/packages/extension/vitest.config.ts
+++ b/packages/extension/vitest.config.ts
@@ -0,0 +1,40 @@
+import { defineConfig } from 'vitest/config';
+import path from 'path';
+
+export default defineConfig({
+  test: {
+    // Environment
+    environment: 'happy-dom',
+
+    // Setup files
+    setupFiles: ['./tests/setup.ts'],
+
+    // Globals (optional - enables describe, it, expect without imports)
+    globals: true,
+
+    // Coverage configuration
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'json', 'html'],
+      exclude: [
+        'node_modules/',
+        'tests/',
+        'build/',
+        'dist/',
+        '**/*.d.ts',
+        '**/*.config.*',
+        '**/mockData/',
+      ],
+    },
+
+    // Test patterns
+    include: ['tests/**/*.{test,spec}.{js,ts,tsx}'],
+    exclude: ['node_modules', 'build', 'dist'],
+  },
+
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+});
--- a/packages/extension/webpack.config.js
+++ b/packages/extension/webpack.config.js
@@ -7,7 +7,6 @@ var webpack = require("webpack"),
  TerserPlugin = require("terser-webpack-plugin");
 var { CleanWebpackPlugin } = require("clean-webpack-plugin");
 var ReactRefreshWebpackPlugin = require("@pmmmwh/react-refresh-webpack-plugin");
-var ExtReloader = require('webpack-ext-reloader');

 const ASSET_PATH = process.env.ASSET_PATH || "/";

@@ -44,20 +43,15 @@ var options = {
    /Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0/,
    /Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0./,
    /repetitive deprecation warnings omitted/,
+    /Dart Sass 2.0.0/,
  ],
-
  entry: {
-    options: path.join(__dirname, "src", "entries", "Options", "index.tsx"),
    popup: path.join(__dirname, "src", "entries", "Popup", "index.tsx"),
    background: path.join(__dirname, "src", "entries", "Background", "index.ts"),
    contentScript: path.join(__dirname, "src", "entries", "Content", "index.ts"),
    content: path.join(__dirname, "src", "entries", "Content", "content.ts"),
    offscreen: path.join(__dirname, "src", "entries", "Offscreen", "index.tsx"),
-    sidePanel: path.join(__dirname, "src", "entries", "SidePanel", "index.tsx"),
  },
-  // chromeExtensionBoilerplate: {
-  //   notHotReload: ["background", "contentScript", "devtools"],
-  // },
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "build"),
@@ -85,9 +79,6 @@ var options = {
            loader: "sass-loader",
            options: {
              sourceMap: true,
-              sassOptions: {
-                silenceDeprecations: ["legacy-js-api"],
-              }
            },
          },
        ],
@@ -96,10 +87,6 @@ var options = {
        test: new RegExp(".(" + fileExtensions.join("|") + ")$"),
        type: "asset/resource",
        exclude: /node_modules/,
-        // loader: 'file-loader',
-        // options: {
-        //   name: '[name].[ext]',
-        // },
      },
      {
        test: /\.html$/,
@@ -149,9 +136,6 @@ var options = {
    new webpack.ProgressPlugin(),
    // expose and write the allowed env vars on the compiled bundle
    new webpack.EnvironmentPlugin(["NODE_ENV"]),
-    // new ExtReloader({
-    //   manifest: path.resolve(__dirname, "src/manifest.json")
-    // }),
    new CopyWebpackPlugin({
      patterns: [
        {
@@ -198,31 +182,6 @@ var options = {
        },
      ],
    }),
-    new CopyWebpackPlugin({
-      patterns: [
-        {
-          from: "node_modules/tlsn-js/build",
-          to: path.join(__dirname, "build"),
-          force: true,
-        },
-        {
-          from: "src/assets/plugins/discord_dm.wasm",
-          to: path.join(__dirname, "build"),
-          force: true,
-        },
-        {
-          from: "src/assets/plugins/twitter_profile.wasm",
-          to: path.join(__dirname, "build"),
-          force: true,
-        },
-      ],
-    }),
-    new HtmlWebpackPlugin({
-      template: path.join(__dirname, "src", "entries", "Options", "index.html"),
-      filename: "options.html",
-      chunks: ["options"],
-      cache: false,
-    }),
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "src", "entries", "Popup", "index.html"),
      filename: "popup.html",
@@ -235,29 +194,10 @@ var options = {
      chunks: ["offscreen"],
      cache: false,
    }),
-    new HtmlWebpackPlugin({
-      template: path.join(__dirname, "src", "entries", "SidePanel", "index.html"),
-      filename: "sidePanel.html",
-      chunks: ["sidePanel"],
-      cache: false,
-    }),
-    new webpack.ProvidePlugin({
-      Buffer: ['buffer', 'Buffer'],
-    }),
  ].filter(Boolean),
  infrastructureLogging: {
    level: "info",
  },
-  // Required by wasm-bindgen-rayon, in order to use SharedArrayBuffer on the Web
-  // Ref:
-  //  - https://github.com/GoogleChromeLabs/wasm-bindgen-rayon#setting-up
-  //  - https://web.dev/i18n/en/coop-coep/
-  devServer: {
-    headers: {
-      'Cross-Origin-Embedder-Policy': 'require-corp',
-      'Cross-Origin-Opener-Policy': 'same-origin',
-    }
-  },
 };

 if (env.NODE_ENV === "development") {
@@ -273,4 +213,4 @@ if (env.NODE_ENV === "development") {
  };
 }

-module.exports = options;
+module.exports = options;
--- a/packages/plugin-sdk/README.md
+++ b/packages/plugin-sdk/README.md
@@ -0,0 +1,65 @@
+# @tlsn/plugin-sdk
+
+SDK for developing and running TLSN WebAssembly plugins using the Component Model.
+
+## Overview
+
+This package provides:
+
+- **Host Environment**: Runtime for executing WASM Component Model plugins
+- **Development Tools**: Utilities for building and testing plugins
+- **Plugin Demos**: Example plugins demonstrating SDK capabilities
+- **Type Definitions**: TypeScript types for plugin development
+
+## Structure
+
+```
+plugin-sdk/
+├── src/              # SDK source code
+│   ├── host/         # Plugin host runtime
+│   ├── builder/      # Build utilities
+│   └── types/        # Type definitions
+├── examples/         # Example plugins and demos
+│   ├── hello-world/  # Basic plugin example
+│   └── http-logger/  # HTTP request logging plugin
+└── dist/             # Built SDK (generated)
+```
+
+## Usage
+
+### Installation
+
+```bash
+npm install @tlsn/plugin-sdk
+```
+
+### Creating a Plugin Host
+
+```typescript
+import { PluginHost } from '@tlsn/plugin-sdk';
+
+const host = new PluginHost({
+  console: {
+    log: (msg) => console.log('[Plugin]', msg)
+  }
+});
+
+const plugin = await host.loadPlugin({
+  id: 'my-plugin',
+  url: 'path/to/plugin.wasm'
+});
+
+await plugin.exports.run();
+```
+
+### Developing a Plugin
+
+See `examples/` directory for complete plugin examples.
+
+## Development
+
+_Implementation in progress_
+
+## License
+
+MIT
--- a/packages/plugin-sdk/demo/README.md
+++ b/packages/plugin-sdk/demo/README.md
@@ -0,0 +1,40 @@
+# WebAssembly Component Model Demo
+
+A minimal example demonstrating the WebAssembly Component Model workflow:
+
+## Files
+
+- **hello.wit** - WebAssembly Interface Types definition
+- **hello.js** - JavaScript implementation of the component
+- **index.html** - Browser demo page
+
+## Build Process
+
+1. **Componentize**: `hello.js` → `hello.component.wasm`
+   - Uses `jco componentize` to create a WebAssembly Component
+
+2. **Transpile**: `hello.component.wasm` → `browser/hello.component.js`
+   - Uses `jco transpile` to generate browser-compatible JavaScript
+
+## Running the Demo
+
+```bash
+# From plugin-sdk directory:
+npm run demo:browser
+```
+
+This will:
+1. Build the component
+2. Transpile it for browser
+3. Start a local server at http://localhost:8081/demo/
+
+## Component Functions
+
+- `greet(name: string) → string` - Returns a greeting message
+- `add(a: u32, b: u32) → u32` - Adds two numbers
+
+## Key Insights
+
+- WebAssembly Components use the Component Model (version `0d 00 01 00`)
+- Browsers only support core WebAssembly modules (version `01 00 00 00`)
+- The transpilation step bridges this gap by creating JavaScript wrappers
--- a/packages/plugin-sdk/demo/browser-loader.js
+++ b/packages/plugin-sdk/demo/browser-loader.js
@@ -0,0 +1,120 @@
+/**
+ * Browser-friendly loader for the WebAssembly Component
+ *
+ * This provides all the WASI stubs needed for the component to run in the browser
+ */
+
+// Create minimal WASI stub implementations
+// Note: The keys must match what the transpiled component expects
+const wasiStubs = {
+  // Without version suffix (what the transpiled code looks for)
+  'wasi:cli/stderr': {
+    getStderr: () => ({
+      write: (data) => { console.error(new TextDecoder().decode(data)); return data.length; }
+    })
+  },
+  'wasi:cli/stdin': {
+    getStdin: () => ({ read: () => new Uint8Array(0) })
+  },
+  'wasi:cli/stdout': {
+    getStdout: () => ({
+      write: (data) => { console.log(new TextDecoder().decode(data)); return data.length; }
+    })
+  },
+  'wasi:cli/terminal-input': {
+    TerminalInput: class {}
+  },
+  'wasi:cli/terminal-output': {
+    TerminalOutput: class {}
+  },
+  'wasi:cli/terminal-stderr': {
+    getTerminalStderr: () => null
+  },
+  'wasi:cli/terminal-stdin': {
+    getTerminalStdin: () => null
+  },
+  'wasi:cli/terminal-stdout': {
+    getTerminalStdout: () => null
+  },
+  'wasi:clocks/monotonic-clock': {
+    now: () => BigInt(Date.now() * 1000000),
+    resolution: () => BigInt(1000000),
+    subscribeDuration: () => ({ ready: () => true }),
+    subscribeInstant: () => ({ ready: () => true })
+  },
+  'wasi:clocks/wall-clock': {
+    now: () => BigInt(Date.now() * 1000000),
+    resolution: () => BigInt(1000000)
+  },
+  'wasi:filesystem/preopens': {
+    getDirectories: () => []
+  },
+  'wasi:filesystem/types': {
+    Descriptor: class {},
+    filesystemErrorCode: () => 'unsupported'
+  },
+  'wasi:http/outgoing-handler': {
+    handle: () => { throw new Error('HTTP not supported'); }
+  },
+  'wasi:http/types': {
+    Fields: class {},
+    FutureIncomingResponse: class {},
+    IncomingBody: class {},
+    IncomingRequest: class {},
+    IncomingResponse: class {},
+    OutgoingBody: class {},
+    OutgoingRequest: class {},
+    OutgoingResponse: class {},
+    RequestOptions: class {},
+    ResponseOutparam: class {}
+  },
+  'wasi:io/error': {
+    Error: class Error { constructor(msg) { this.message = msg; } }
+  },
+  'wasi:io/poll': {
+    Pollable: class {},
+    poll: () => []
+  },
+  'wasi:io/streams': {
+    InputStream: class {
+      read() { return new Uint8Array(0); }
+      subscribe() { return { ready: () => true }; }
+    },
+    OutputStream: class {
+      write(data) { return data.length; }
+      subscribe() { return { ready: () => true }; }
+    }
+  },
+  'wasi:random/random': {
+    getRandomBytes: (len) => {
+      const bytes = new Uint8Array(len);
+      crypto.getRandomValues(bytes);
+      return bytes;
+    },
+    getRandomU64: () => {
+      const bytes = new Uint8Array(8);
+      crypto.getRandomValues(bytes);
+      return new DataView(bytes.buffer).getBigUint64(0, true);
+    }
+  }
+};
+
+// Load and instantiate the component
+async function loadComponent() {
+  const { instantiate } = await import('/browser/hello.component.js');
+
+  // Function to load core WASM modules
+  async function getCoreModule(path) {
+    const response = await fetch(`/browser/${path}`);
+    const bytes = await response.arrayBuffer();
+    return WebAssembly.compile(bytes);
+  }
+
+  // Instantiate with WASI stubs
+  const component = await instantiate(getCoreModule, wasiStubs);
+
+  return component;
+}
+
+// Export for use in HTML
+window.loadWasmComponent = loadComponent;
--- a/packages/plugin-sdk/demo/hello.js
+++ b/packages/plugin-sdk/demo/hello.js
@@ -0,0 +1,10 @@
+// Simple WebAssembly Component implementation
+// This will be compiled to a WASM component using componentize-js
+
+export function greet(name) {
+  return `Hello, ${name}! This is a WebAssembly Component.`;
+}
+
+export function add(a, b) {
+  return a + b;
+}
--- a/packages/plugin-sdk/demo/hello.wit
+++ b/packages/plugin-sdk/demo/hello.wit
@@ -0,0 +1,6 @@
+package demo:hello@0.1.0;
+
+world hello-world {
+  export greet: func(name: string) -> string;
+  export add: func(a: u32, b: u32) -> u32;
+}
--- a/packages/plugin-sdk/demo/index.html
+++ b/packages/plugin-sdk/demo/index.html
@@ -0,0 +1,257 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>WebAssembly Component Model - Simple Demo</title>
+  <style>
+    body {
+      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
+      max-width: 800px;
+      margin: 50px auto;
+      padding: 20px;
+      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+      min-height: 100vh;
+    }
+
+    .container {
+      background: white;
+      padding: 30px;
+      border-radius: 10px;
+      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
+    }
+
+    h1 {
+      color: #667eea;
+      margin-bottom: 10px;
+    }
+
+    .subtitle {
+      color: #666;
+      margin-bottom: 30px;
+    }
+
+    .section {
+      margin-bottom: 30px;
+      padding: 20px;
+      background: #f8f9fa;
+      border-radius: 8px;
+    }
+
+    button {
+      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+      color: white;
+      border: none;
+      padding: 12px 24px;
+      border-radius: 6px;
+      font-size: 16px;
+      cursor: pointer;
+      margin-right: 10px;
+      margin-bottom: 10px;
+      transition: transform 0.2s;
+    }
+
+    button:hover {
+      transform: translateY(-2px);
+    }
+
+    button:active {
+      transform: translateY(0);
+    }
+
+    input {
+      padding: 10px;
+      font-size: 16px;
+      border: 2px solid #e0e0e0;
+      border-radius: 6px;
+      margin-right: 10px;
+      width: 200px;
+    }
+
+    input:focus {
+      outline: none;
+      border-color: #667eea;
+    }
+
+    .output {
+      margin-top: 20px;
+      padding: 15px;
+      background: #1e1e1e;
+      color: #d4d4d4;
+      border-radius: 6px;
+      font-family: 'Courier New', monospace;
+      min-height: 60px;
+      white-space: pre-wrap;
+      overflow-x: auto;
+    }
+
+    .success {
+      color: #4caf50;
+    }
+
+    .error {
+      color: #f44336;
+    }
+
+    .info {
+      color: #2196f3;
+    }
+
+    .status {
+      margin-top: 10px;
+      padding: 10px;
+      background: #e8f5e9;
+      border-left: 4px solid #4caf50;
+      border-radius: 4px;
+      display: none;
+    }
+
+    .status.show {
+      display: block;
+    }
+
+    .loading {
+      display: inline-block;
+      width: 20px;
+      height: 20px;
+      border: 3px solid rgba(255,255,255,.3);
+      border-radius: 50%;
+      border-top-color: white;
+      animation: spin 1s ease-in-out infinite;
+      margin-left: 10px;
+    }
+
+    @keyframes spin {
+      to { transform: rotate(360deg); }
+    }
+
+    code {
+      background: #f5f5f5;
+      padding: 2px 6px;
+      border-radius: 3px;
+      font-size: 14px;
+    }
+  </style>
+</head>
+<body>
+  <div class="container">
+    <h1>🚀 WebAssembly Component Model Demo</h1>
+    <p class="subtitle">A minimal example of running a WASM Component in the browser</p>
+
+    <div class="section">
+      <h2>📦 Component Info</h2>
+      <p>This demo loads a WebAssembly Component that was:</p>
+      <ol>
+        <li>Written in JavaScript (<code>hello.js</code>)</li>
+        <li>Componentized using <code>jco componentize</code></li>
+        <li>Transpiled for browser using <code>jco transpile</code></li>
+      </ol>
+      <div id="status" class="status">Component loaded and ready!</div>
+    </div>
+
+    <div class="section">
+      <h2>🎯 Test Functions</h2>
+
+      <h3>1. Greet Function</h3>
+      <input type="text" id="nameInput" placeholder="Enter your name" value="World">
+      <button onclick="callGreet()">Call greet()</button>
+
+      <h3>2. Add Function</h3>
+      <input type="number" id="num1" placeholder="Number 1" value="5" style="width: 100px">
+      +
+      <input type="number" id="num2" placeholder="Number 2" value="3" style="width: 100px">
+      <button onclick="callAdd()">Call add()</button>
+    </div>
+
+    <div class="section">
+      <h2>📤 Output</h2>
+      <div id="output" class="output">Click a button to execute a component function...</div>
+    </div>
+  </div>
+
+  <script src="/demo/browser-loader.js"></script>
+  <script type="module">
+    let component = null;
+    const output = document.getElementById('output');
+    const status = document.getElementById('status');
+
+    function log(message, type = 'info') {
+      const timestamp = new Date().toLocaleTimeString();
+      const className = type === 'error' ? 'error' : type === 'success' ? 'success' : 'info';
+      output.innerHTML += `<span class="${className}">[${timestamp}] ${message}</span>\n`;
+      output.scrollTop = output.scrollHeight;
+    }
+
+    // Load the component using the browser loader
+    async function loadComponent() {
+      try {
+        log('Loading WebAssembly Component...', 'info');
+
+        // Use the browser loader to load the component with WASI stubs
+        component = await window.loadWasmComponent();
+
+        log('✅ Component loaded successfully!', 'success');
+        log('Available exports: ' + Object.keys(component).join(', '), 'info');
+
+        status.classList.add('show');
+        return true;
+      } catch (error) {
+        log('❌ Failed to load component: ' + error.message, 'error');
+        console.error(error);
+        return false;
+      }
+    }
+
+    // Call the greet function
+    window.callGreet = async function() {
+      if (!component) {
+        log('Component not loaded yet!', 'error');
+        return;
+      }
+
+      const name = document.getElementById('nameInput').value || 'World';
+
+      try {
+        log(`Calling greet("${name}")...`, 'info');
+        const result = component.greet(name);
+        log(`Result: "${result}"`, 'success');
+      } catch (error) {
+        log(`Error: ${error.message}`, 'error');
+      }
+    };
+
+    // Call the add function
+    window.callAdd = async function() {
+      if (!component) {
+        log('Component not loaded yet!', 'error');
+        return;
+      }
+
+      const num1 = parseInt(document.getElementById('num1').value) || 0;
+      const num2 = parseInt(document.getElementById('num2').value) || 0;
+
+      try {
+        log(`Calling add(${num1}, ${num2})...`, 'info');
+        const result = component.add(num1, num2);
+        log(`Result: ${result}`, 'success');
+      } catch (error) {
+        log(`Error: ${error.message}`, 'error');
+      }
+    };
+
+    // Initialize on page load
+    window.addEventListener('DOMContentLoaded', async () => {
+      log('🚀 WebAssembly Component Model Demo', 'info');
+      log('=====================================', 'info');
+
+      // Try to load the component
+      const loaded = await loadComponent();
+
+      if (!loaded) {
+        log('\n⚠️ Make sure to run "npm run demo:build" first!', 'error');
+        log('This will compile and transpile the component.', 'info');
+      }
+    });
+  </script>
+</body>
+</html>
--- a/packages/plugin-sdk/package.json
+++ b/packages/plugin-sdk/package.json
@@ -0,0 +1,44 @@
+{
+  "name": "@tlsn/plugin-sdk",
+  "version": "0.1.0",
+  "description": "SDK for developing and running TLSN WebAssembly plugins",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "type": "module",
+  "scripts": {
+    "build": "echo 'Build not yet implemented'",
+    "test": "echo 'Tests not yet implemented'",
+    "demo:build": "npm run demo:build:component && npm run demo:transpile",
+    "demo:build:component": "npx jco componentize demo/hello.js --wit demo/hello.wit -o hello.component.wasm",
+    "demo:transpile": "npx jco transpile hello.component.wasm -o browser --instantiation",
+    "demo:bundle": "node demo/bundle.js",
+    "demo:browser": "npm run demo:build && npx http-server . -p 8083 -c-1 -o /demo/",
+    "demo:clean": "rm -rf hello.component.wasm browser"
+  },
+  "keywords": [
+    "tlsn",
+    "wasm",
+    "plugin",
+    "component-model",
+    "sdk"
+  ],
+  "author": "TLSN Team",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/tlsnotary/tlsn-extension.git",
+    "directory": "packages/plugin-sdk"
+  },
+  "files": [
+    "dist",
+    "src",
+    "examples",
+    "README.md"
+  ],
+  "devDependencies": {
+    "@bytecodealliance/jco": "^1.7.2",
+    "@bytecodealliance/componentize-js": "^0.11.3",
+    "http-server": "^14.1.1",
+    "typescript": "^4.9.4"
+  }
+}
--- a/packages/plugin-sdk/src/index.ts
+++ b/packages/plugin-sdk/src/index.ts
@@ -0,0 +1,8 @@
+/**
+ * @tlsn/plugin-sdk
+ *
+ * SDK for developing and running TLSN WebAssembly plugins
+ */
+
+// Placeholder - implementation pending
+export {};
--- a/src/assets/plugins/discord_dm.wasm
+++ b/src/assets/plugins/discord_dm.wasm
--- a/src/assets/plugins/twitter_profile.wasm
+++ b/src/assets/plugins/twitter_profile.wasm
--- a/src/components/ConnectionDetailsModal/index.tsx
+++ b/src/components/ConnectionDetailsModal/index.tsx
@@ -1,70 +0,0 @@
-import React, { useCallback, useEffect } from 'react';
-import { useDispatch } from 'react-redux';
-import {
-  useActiveTabUrl,
-  setConnection,
-  useIsConnected,
-} from '../../reducers/requests';
-import Modal, { ModalHeader, ModalContent } from '../../components/Modal/Modal';
-import { deleteConnection, getConnection } from '../../entries/Background/db';
-
-const ConnectionDetailsModal = (props: {
-  showConnectionDetails: boolean;
-  setShowConnectionDetails: (show: boolean) => void;
-}) => {
-  const dispatch = useDispatch();
-  const activeTabOrigin = useActiveTabUrl();
-  const connected = useIsConnected();
-
-  useEffect(() => {
-    (async () => {
-      if (activeTabOrigin) {
-        const isConnected: boolean | null = await getConnection(
-          activeTabOrigin.origin,
-        );
-        dispatch(setConnection(!!isConnected));
-      }
-    })();
-  }, [activeTabOrigin, dispatch]);
-
-  const handleDisconnect = useCallback(async () => {
-    if (activeTabOrigin?.origin) {
-      await deleteConnection(activeTabOrigin.origin);
-      props.setShowConnectionDetails(false);
-      dispatch(setConnection(false));
-    }
-  }, [activeTabOrigin?.origin, dispatch, props]);
-
-  return (
-    <Modal
-      onClose={() => props.setShowConnectionDetails(false)}
-      className="flex flex-col gap-2 items-center text-base cursor-default justify-center mx-4 min-h-24"
-    >
-      <ModalHeader
-        className="w-full rounded-t-lg pb-0 border-b-0"
-        onClose={() => props.setShowConnectionDetails(false)}
-      >
-        <span className="text-lg font-semibold">
-          {activeTabOrigin?.hostname || 'Connections'}
-        </span>
-      </ModalHeader>
-      <ModalContent className="w-full gap-2 flex-grow flex flex-col items-center justify-between px-4 pt-0 pb-4">
-        <div className="flex flex-row gap-2 items-start w-full text-xs font-semibold text-slate-800">
-          {connected
-            ? 'TLSN Extension is connected to this site.'
-            : 'TLSN Extension is not connected to this site. To connect to this site, find and click the connect button.'}
-        </div>
-        {connected && (
-          <button
-            className="button disabled:opacity-50 self-end"
-            onClick={handleDisconnect}
-          >
-            Disconnect
-          </button>
-        )}
-      </ModalContent>
-    </Modal>
-  );
-};
-
-export default ConnectionDetailsModal;
--- a/src/components/ErrorModal/index.tsx
+++ b/src/components/ErrorModal/index.tsx
@@ -1,26 +0,0 @@
-import React, { ReactElement } from 'react';
-import Modal, { ModalContent } from '../Modal/Modal';
-
-export function ErrorModal(props: {
-  onClose: () => void;
-  message: string;
-}): ReactElement {
-  const { onClose, message } = props;
-
-  return (
-    <Modal
-      className="flex flex-col gap-4 items-center text-base cursor-default justify-center !w-auto mx-4 my-[50%] min-h-24 p-4 border border-red-500 !bg-red-100"
-      onClose={onClose}
-    >
-      <ModalContent className="flex justify-center items-center text-red-500">
-        {message || 'Something went wrong :('}
-      </ModalContent>
-      <button
-        className="m-0 w-24 bg-red-200 text-red-400 hover:bg-red-200 hover:text-red-500"
-        onClick={onClose}
-      >
-        OK
-      </button>
-    </Modal>
-  );
-}
--- a/src/components/Icon/icon.scss
+++ b/src/components/Icon/icon.scss
@@ -1,5 +0,0 @@
-.icon {
-  display: flex;
-  flex-flow: row nowrap;
-  align-items: center;
-}
--- a/src/components/Icon/index.tsx
+++ b/src/components/Icon/index.tsx
@@ -1,37 +0,0 @@
-import React, { MouseEventHandler, ReactElement, ReactNode } from 'react';
-import classNames from 'classnames';
-import './icon.scss';
-
-type Props = {
-  url?: string;
-  fa?: string;
-  className?: string;
-  size?: number;
-  onClick?: MouseEventHandler;
-  children?: ReactNode;
-};
-
-export default function Icon(props: Props): ReactElement {
-  const { url, size = 1, className = '', fa, onClick, children } = props;
-
-  return (
-    <div
-      className={classNames(
-        'bg-contain bg-center bg-no-repeat icon',
-        {
-          'cursor-pointer': onClick,
-        },
-        className,
-      )}
-      style={{
-        backgroundImage: url ? `url(${url})` : undefined,
-        width: !fa ? `${size}rem` : undefined,
-        height: !fa ? `${size}rem` : undefined,
-      }}
-      onClick={onClick}
-    >
-      {!url && !!fa && <i className={fa} style={{ fontSize: `${size}rem` }} />}
-      {children}
-    </div>
-  );
-}
--- a/src/components/Menu/index.tsx
+++ b/src/components/Menu/index.tsx
@@ -1,124 +0,0 @@
-import React, {
-  MouseEventHandler,
-  ReactElement,
-  ReactNode,
-  useCallback,
-  useState,
-} from 'react';
-import Icon from '../Icon';
-import browser from 'webextension-polyfill';
-import classNames from 'classnames';
-import { useNavigate } from 'react-router';
-
-export function MenuIcon(): ReactElement {
-  const [opened, setOpen] = useState(false);
-
-  const toggleMenu = useCallback(() => {
-    setOpen(!opened);
-  }, [opened]);
-
-  return (
-    <div className="relative">
-      {opened && (
-        <>
-          <div
-            className="fixed top-0 left-0 w-screen h-screen z-10"
-            onClick={toggleMenu}
-          />
-          <Menu opened={opened} setOpen={setOpen} />
-        </>
-      )}
-      <Icon
-        fa="fa-solid fa-bars"
-        className="text-slate-500 hover:text-slate-700 active:text-slate-900 cursor-pointer z-20"
-        onClick={toggleMenu}
-      />
-    </div>
-  );
-}
-
-export default function Menu(props: {
-  opened: boolean;
-  setOpen: (opened: boolean) => void;
-}): ReactElement {
-  const navigate = useNavigate();
-  const openExtensionInPage = () => {
-    props.setOpen(false);
-    browser.tabs.create({
-      url: `chrome-extension://${chrome.runtime.id}/popup.html`,
-    });
-  };
-
-  return (
-    <div className="absolute top-[100%] right-0 rounded-md z-20">
-      <div className="flex flex-col bg-slate-200 w-40 shadow rounded-md py">
-        <MenuRow
-          fa="fa-solid fa-hammer"
-          className="relative"
-          onClick={() => {
-            navigate('/custom');
-            props.setOpen(false);
-          }}
-        >
-          <span>Custom</span>
-        </MenuRow>
-        <MenuRow
-          fa="fa-solid fa-certificate"
-          className="relative"
-          onClick={() => {
-            props.setOpen(false);
-            navigate('/verify');
-          }}
-        >
-          Verify
-        </MenuRow>
-        <MenuRow
-          fa="fa-solid fa-network-wired"
-          className="border-b border-slate-300"
-          onClick={() => {
-            props.setOpen(false);
-            navigate('/p2p');
-          }}
-        >
-          P2P
-        </MenuRow>
-        <MenuRow
-          className="lg:hidden"
-          fa="fa-solid fa-up-right-and-down-left-from-center"
-          onClick={openExtensionInPage}
-        >
-          Expand
-        </MenuRow>
-        <MenuRow
-          fa="fa-solid fa-gear"
-          onClick={() => {
-            props.setOpen(false);
-            navigate('/options');
-          }}
-        >
-          Options
-        </MenuRow>
-      </div>
-    </div>
-  );
-}
-
-function MenuRow(props: {
-  fa: string;
-  children?: ReactNode;
-  onClick?: MouseEventHandler;
-  className?: string;
-}): ReactElement {
-  return (
-    <div
-      className={classNames(
-        'flex flex-row items-center py-3 px-4 gap-2 hover:bg-slate-300 cursor-pointer text-slate-800 hover:text-slate-900 font-semibold',
-        props.className,
-      )}
-      onClick={props.onClick}
-    >
-      <Icon size={0.875} fa={props.fa} />
-      {props.children}
-    </div>
-  );
-}
--- a/src/components/Modal/Modal.tsx
+++ b/src/components/Modal/Modal.tsx
@@ -1,100 +0,0 @@
-import React, { MouseEventHandler, ReactElement, ReactNode } from 'react';
-import ReactDOM from 'react-dom';
-import './modal.scss';
-import Icon from '../Icon';
-import classNames from 'classnames';
-
-type Props = {
-  className?: string;
-  onClose: MouseEventHandler;
-  children: ReactNode | ReactNode[];
-};
-
-export default function Modal(props: Props): ReactElement {
-  const { className, onClose, children } = props;
-
-  const modalRoot = document.querySelector('#modal-root');
-
-  if (!modalRoot) return <></>;
-
-  return ReactDOM.createPortal(
-    <div
-      className={classNames('bg-black bg-opacity-80', 'modal__overlay')}
-      onClick={(e) => {
-        e.stopPropagation();
-        onClose && onClose(e);
-      }}
-    >
-      <div
-        className={classNames(`modal__wrapper bg-white`, className)}
-        onClick={(e) => e.stopPropagation()}
-      >
-        {children}
-      </div>
-    </div>,
-    modalRoot,
-  );
-}
-
-type HeaderProps = {
-  className?: string;
-  onClose?: () => void;
-  children?: ReactNode;
-};
-
-export function ModalHeader(props: HeaderProps): ReactElement {
-  return (
-    <div
-      className={classNames(
-        'border-b modal__header border-gray-100',
-        props.className,
-      )}
-    >
-      <div className="modal__header__title">{props.children}</div>
-      <div className="modal__header__content">
-        {props.onClose && (
-          <div
-            className={classNames(
-              'flex flex-row items-center justify-center',
-              'p-2 rounded-full opacity-50',
-              'hover:opacity-100 text-black',
-            )}
-          >
-            <Icon fa="fas fa-times" size={1} onClick={props.onClose} />
-          </div>
-        )}
-      </div>
-    </div>
-  );
-}
-
-type ContentProps = {
-  children: ReactNode;
-  className?: string;
-};
-
-export function ModalContent(props: ContentProps): ReactElement {
-  return (
-    <div className={classNames('modal__content', props.className)}>
-      {props.children}
-    </div>
-  );
-}
-
-type FooterProps = {
-  children: ReactNode;
-  className?: string;
-};
-
-export function ModalFooter(props: FooterProps): ReactElement {
-  return (
-    <div
-      className={classNames(
-        'border-t modal__footer border-gray-100 w-full',
-        props.className,
-      )}
-    >
-      {props.children}
-    </div>
-  );
-}
--- a/src/components/Modal/modal.scss
+++ b/src/components/Modal/modal.scss
@@ -1,72 +0,0 @@
-.modal {
-  display: flex;
-  flex-flow: column nowrap;
-
-  &__overlay {
-    position: fixed;
-    width: 100vw;
-    height: 100vh;
-    top: 0;
-    left: 0;
-    z-index: 9999;
-    overflow: auto;
-  }
-
-  &__wrapper {
-    margin: 3rem auto;
-    border-radius: 0.5rem;
-    z-index: 200;
-    overflow: hidden;
-
-    @media only screen and (max-width: 768px) {
-      width: 100vw !important;
-    }
-  }
-
-  &__header {
-    display: flex;
-    flex-flow: row nowrap;
-    flex: 0 0 auto;
-    align-items: center;
-    padding: 0.5rem 1rem;
-
-    &__title {
-      font-weight: 500;
-      white-space: nowrap;
-      text-overflow: ellipsis;
-      overflow: hidden;
-    }
-
-    &__content {
-      display: flex;
-      flex-flow: row nowrap;
-      flex: 1 1 auto;
-      justify-content: flex-end;
-    }
-  }
-
-  &__content {
-    flex: 1 1 auto;
-    max-height: calc(100vh - 20rem);
-    overflow-y: auto;
-
-    p:nth-of-type(1) {
-      margin-top: 0;
-    }
-
-    .error-message {
-      font-size: 0.8125rem;
-      text-align: center;
-      margin-top: 1rem;
-    }
-  }
-
-  &__footer {
-    display: flex;
-    flex-flow: row nowrap;
-    align-content: center;
-    justify-content: flex-end;
-    flex: 0 0 auto;
-    padding: 1rem 1.25rem;
-  }
-}
--- a/src/components/NavigateWithParams/index.tsx
+++ b/src/components/NavigateWithParams/index.tsx
@@ -1,10 +0,0 @@
-import React from 'react';
-import { ReactElement } from 'react';
-import { Navigate, useLocation } from 'react-router-dom';
-
-export default function NavigateWithParams(props: {
-  to: string;
-}): ReactElement {
-  const location = useLocation();
-  return <Navigate to={location.pathname + props.to} />;
-}
--- a/src/components/PluginInfo/index.scss
+++ b/src/components/PluginInfo/index.scss
@@ -1,20 +0,0 @@
-.custom-modal {
-  height: 100%;
-  max-width: 800px;
-  max-height: 100vh;
-  display: flex;
-  margin: 0 auto;
-  flex-direction: column;
-}
-
-.custom-modal-content {
-  flex-grow: 2;
-  overflow-y: auto;
-  max-height: 90%;
-}
-
-.modal__overlay {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-}
--- a/src/components/PluginInfo/index.tsx
+++ b/src/components/PluginInfo/index.tsx
@@ -1,154 +0,0 @@
-import React, { Children, MouseEventHandler, ReactNode } from 'react';
-import Modal, {
-  ModalHeader,
-  ModalContent,
-  ModalFooter,
-} from '../../components/Modal/Modal';
-import type { PluginConfig } from '../../utils/misc';
-import './index.scss';
-import logo from '../../assets/img/icon-128.png';
-import {
-  HostFunctionsDescriptions,
-  MultipleParts,
-  PermissionDescription,
-} from '../../utils/plugins';
-import classNames from 'classnames';
-import DefaultPluginIcon from '../../assets/img/default-plugin-icon.png';
-
-export function PluginInfoModalHeader(props: {
-  className?: string;
-  children: ReactNode | ReactNode[];
-}) {
-  return <div className={props.className}>{props.children}</div>;
-}
-
-export function PluginInfoModalContent(props: {
-  className?: string;
-  children: ReactNode | ReactNode[];
-}) {
-  return <div className={props.className}>{props.children}</div>;
-}
-
-export function PluginInfoModal(props: {
-  pluginContent: PluginConfig;
-  onClose: () => void;
-  onAddPlugin?: MouseEventHandler;
-  children?: ReactNode | ReactNode[];
-}) {
-  const { pluginContent, onClose, onAddPlugin, children } = props;
-
-  const header = Children.toArray(children).filter(
-    (c: any) => c.type.name === 'PluginInfoModalHeader',
-  )[0];
-
-  const content = Children.toArray(children).filter(
-    (c: any) => c.type.name === 'PluginInfoModalContent',
-  )[0];
-
-  return (
-    <Modal
-      onClose={onClose}
-      className="custom-modal !rounded-none flex items-center justify-center gap-4 cursor-default"
-    >
-      <ModalHeader className="w-full p-2 border-gray-200 text-gray-500">
-        {header || (
-          <div className="flex flex-row items-end justify-start gap-2">
-            <img className="h-5" src={logo || DefaultPluginIcon} alt="logo" />
-            <span className="font-semibold">{`Installing ${pluginContent.title}`}</span>
-          </div>
-        )}
-      </ModalHeader>
-      <ModalContent className="flex flex-col flex-grow-0 flex-shrink-0 items-center px-8 py-2 gap-2 w-full max-h-none">
-        {content || (
-          <>
-            <img
-              className="w-12 h-12"
-              src={pluginContent.icon || DefaultPluginIcon}
-              alt="Plugin Icon"
-            />
-            <span className="text-3xl text-center">
-              <span>
-                <span className="text-blue-600 font-semibold">
-                  {pluginContent.title}
-                </span>{' '}
-                wants access to your browser
-              </span>
-            </span>
-          </>
-        )}
-      </ModalContent>
-      <div className="flex-grow flex-shrink overflow-y-auto w-full px-8">
-        <PluginPermissions pluginContent={pluginContent} />
-      </div>
-      <ModalFooter className="flex justify-end gap-2 p-4">
-        <button className="button" onClick={onClose}>
-          Cancel
-        </button>
-        {onAddPlugin && (
-          <button className="button button--primary" onClick={onAddPlugin}>
-            Allow
-          </button>
-        )}
-      </ModalFooter>
-    </Modal>
-  );
-}
-
-export function PluginPermissions({
-  pluginContent,
-  className,
-}: {
-  pluginContent: PluginConfig;
-  className?: string;
-}) {
-  return (
-    <div className={classNames('flex flex-col p-2 gap-5', className)}>
-      {pluginContent.hostFunctions?.map((hostFunction: string) => {
-        const HFComponent = HostFunctionsDescriptions[hostFunction];
-        return <HFComponent key={hostFunction} {...pluginContent} />;
-      })}
-      {pluginContent.cookies && (
-        <PermissionDescription fa="fa-solid fa-cookie-bite">
-          <span className="cursor-default">
-            <span className="mr-1">Access cookies from</span>
-            <MultipleParts parts={pluginContent.cookies} />
-          </span>
-        </PermissionDescription>
-      )}
-      {pluginContent.headers && (
-        <PermissionDescription fa="fa-solid fa-envelope">
-          <span className="cursor-default">
-            <span className="mr-1">Access headers from</span>
-            <MultipleParts parts={pluginContent.headers} />
-          </span>
-        </PermissionDescription>
-      )}
-      {pluginContent.localStorage && (
-        <PermissionDescription fa="fa-solid fa-database">
-          <span className="cursor-default">
-            <span className="mr-1">Access local storage storage from</span>
-            <MultipleParts parts={pluginContent.localStorage} />
-          </span>
-        </PermissionDescription>
-      )}
-      {pluginContent.sessionStorage && (
-        <PermissionDescription fa="fa-solid fa-database">
-          <span className="cursor-default">
-            <span className="mr-1">Access session storage from</span>
-            <MultipleParts parts={pluginContent.sessionStorage} />
-          </span>
-        </PermissionDescription>
-      )}
-      {pluginContent.requests && (
-        <PermissionDescription fa="fa-solid fa-globe">
-          <span className="cursor-default">
-            <span className="mr-1">Submit network requests to</span>
-            <MultipleParts
-              parts={pluginContent?.requests.map(({ url }) => url)}
-            />
-          </span>
-        </PermissionDescription>
-      )}
-    </div>
-  );
-}
--- a/src/components/PluginList/index.scss
+++ b/src/components/PluginList/index.scss
@@ -1,45 +0,0 @@
-.plugin-box {
-  &__remove-icon {
-    opacity: 0;
-    height: 0;
-    width: 0;
-    padding: 0;
-    overflow: hidden;
-    transition: 200ms opacity;
-    transition-delay: 200ms;
-  }
-
-  &:hover {
-    .plugin-box__remove-icon {
-      height: 1.25rem;
-      width: 1.25rem;
-      padding: .5rem;
-      opacity: .5;
-
-      &:hover {
-        opacity: 1;
-      }
-    }
-  }
-}
-.custom-modal {
-  width: 100vw;
-  height: 100vh;
-  max-width: 800px;
-  max-height: 90vh;
-  display: flex;
-  margin: 1rem auto;
-  flex-direction: column;
-}
-
-.custom-modal-content {
-  flex-grow: 2;
-  overflow-y: auto;
-  max-height: 90%;
-}
-
-.modal__overlay {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-}
--- a/src/components/PluginList/index.tsx
+++ b/src/components/PluginList/index.tsx
@@ -1,312 +0,0 @@
-import React, {
-  MouseEventHandler,
-  ReactElement,
-  useCallback,
-  useEffect,
-  useState,
-} from 'react';
-import {
-  fetchPluginHashes,
-  removePlugin,
-  runPlugin,
-  addPlugin,
-} from '../../utils/rpc';
-import { usePluginHashes } from '../../reducers/plugins';
-import {
-  getPluginConfig,
-  hexToArrayBuffer,
-  PluginConfig,
-} from '../../utils/misc';
-import DefaultPluginIcon from '../../assets/img/default-plugin-icon.png';
-import classNames from 'classnames';
-import Icon from '../Icon';
-import './index.scss';
-import browser from 'webextension-polyfill';
-import { ErrorModal } from '../ErrorModal';
-import {
-  PluginInfoModal,
-  PluginInfoModalContent,
-  PluginInfoModalHeader,
-} from '../PluginInfo';
-import { getPluginConfigByUrl } from '../../entries/Background/db';
-import { SidePanelActionTypes } from '../../entries/SidePanel/types';
-import { openSidePanel } from '../../entries/utils';
-
-export function PluginList({
-  className,
-  unremovable,
-  onClick,
-  showAddButton = false,
-}: {
-  className?: string;
-  unremovable?: boolean;
-  onClick?: (hash: string) => void;
-  showAddButton?: boolean;
-}): ReactElement {
-  const hashes = usePluginHashes();
-  const [uploading, setUploading] = useState(false);
-
-  useEffect(() => {
-    fetchPluginHashes();
-  }, []);
-
-  const handleFileUpload = useCallback(
-    async (e: React.ChangeEvent<HTMLInputElement>) => {
-      const file = e.target.files?.[0];
-      if (!file) return;
-
-      if (!file.name.endsWith('.wasm')) {
-        alert('Please select a .wasm file');
-        return;
-      }
-
-      setUploading(true);
-      try {
-        const arrayBuffer = await file.arrayBuffer();
-        const hex = Buffer.from(arrayBuffer).toString('hex');
-        const url = `file://${file.name}`;
-
-        await addPlugin(hex, url);
-        await fetchPluginHashes();
-      } catch (error: any) {
-        alert(`Failed to add plugin: ${error.message}`);
-      } finally {
-        setUploading(false);
-        e.target.value = '';
-      }
-    },
-    [],
-  );
-
-  return (
-    <div className={classNames('flex flex-col flex-nowrap gap-1', className)}>
-      {showAddButton && (
-        <div className="relative">
-          <input
-            type="file"
-            accept=".wasm"
-            onChange={handleFileUpload}
-            disabled={uploading}
-            className="absolute inset-0 w-full h-full opacity-0 cursor-pointer z-10"
-          />
-          <button
-            className="flex flex-row items-center justify-center gap-2 p-3 border-2 border-dashed border-slate-300 rounded-lg text-slate-500 hover:text-slate-700 hover:border-slate-400 transition-colors cursor-pointer w-full"
-            disabled={uploading}
-          >
-            {uploading ? (
-              <>
-                <Icon fa="fa-solid fa-spinner" className="animate-spin" />
-                <span>Adding Plugin...</span>
-              </>
-            ) : (
-              <>
-                <Icon fa="fa-solid fa-plus" />
-                <span>Add Plugin (.wasm file)</span>
-              </>
-            )}
-          </button>
-        </div>
-      )}
-      {!hashes.length && !showAddButton && (
-        <div className="flex flex-col items-center justify-center text-slate-400 cursor-default select-none">
-          <div>No available plugins</div>
-        </div>
-      )}
-      {hashes.map((hash) => (
-        <Plugin
-          key={hash}
-          hash={hash}
-          unremovable={unremovable}
-          onClick={onClick}
-        />
-      ))}
-    </div>
-  );
-}
-
-export function Plugin({
-  hash,
-  hex,
-  unremovable,
-  onClick,
-  className,
-}: {
-  hash: string;
-  hex?: string;
-  className?: string;
-  onClick?: (hash: string) => void;
-  unremovable?: boolean;
-}): ReactElement {
-  const [error, showError] = useState('');
-  const [config, setConfig] = useState<PluginConfig | null>(null);
-  const [pluginInfo, showPluginInfo] = useState(false);
-  const [remove, showRemove] = useState(false);
-
-  const onRunPlugin = useCallback(async () => {
-    if (!config || remove) return;
-
-    if (onClick) {
-      onClick(hash);
-      return;
-    }
-
-    try {
-      await openSidePanel();
-
-      browser.runtime.sendMessage({
-        type: SidePanelActionTypes.execute_plugin_request,
-        data: {
-          pluginHash: hash,
-        },
-      });
-
-      await runPlugin(hash, 'start');
-
-      window.close();
-    } catch (e: any) {
-      showError(e.message);
-    }
-  }, [hash, config, remove, onClick]);
-
-  useEffect(() => {
-    (async function () {
-      if (hex) {
-        setConfig(await getPluginConfig(hexToArrayBuffer(hex)));
-      } else {
-        setConfig(await getPluginConfigByUrl(hash));
-      }
-    })();
-  }, [hash, hex]);
-
-  const onRemove: MouseEventHandler = useCallback(
-    (e) => {
-      e.stopPropagation();
-      removePlugin(hash);
-      showRemove(false);
-    },
-    [hash, remove],
-  );
-
-  const onConfirmRemove: MouseEventHandler = useCallback(
-    (e) => {
-      e.stopPropagation();
-      showRemove(true);
-    },
-    [hash, remove],
-  );
-
-  const onPluginInfo: MouseEventHandler = useCallback(
-    (e) => {
-      e.stopPropagation();
-      showPluginInfo(true);
-    },
-    [hash, pluginInfo],
-  );
-
-  if (!config) return <></>;
-
-  return (
-    <div
-      className={classNames(
-        'flex flex-row justify-center border rounded border-slate-300 p-2 gap-2 plugin-box',
-        'cursor-pointer hover:bg-slate-100 hover:border-slate-400 active:bg-slate-200',
-        className,
-      )}
-      onClick={onRunPlugin}
-    >
-      {!!error && <ErrorModal onClose={() => showError('')} message={error} />}
-      {!remove ? (
-        <div className="flex flex-row w-full gap-2">
-          <img className="w-12 h-12" src={config.icon || DefaultPluginIcon} />
-          <div className="flex flex-col w-full items-start">
-            <div className="font-bold flex flex-row h-6 items-center justify-between w-full">
-              {config.title}
-              <div className="flex flex-row items-center justify-center">
-                <Icon
-                  fa="fa-solid fa-circle-info"
-                  className="flex flex-row items-center justify-center cursor-pointer plugin-box__remove-icon"
-                  onClick={onPluginInfo}
-                />
-                {!unremovable && (
-                  <Icon
-                    fa="fa-solid fa-xmark"
-                    className="flex flex-row items-center justify-center cursor-pointer text-red-500 bg-red-200 rounded-full plugin-box__remove-icon"
-                    onClick={onConfirmRemove}
-                  />
-                )}
-              </div>
-            </div>
-            <div>{config.description}</div>
-          </div>
-        </div>
-      ) : (
-        <RemovePlugin
-          onRemove={onRemove}
-          showRemove={showRemove}
-          config={config}
-        />
-      )}
-      {pluginInfo && (
-        <PluginInfoModal
-          pluginContent={config}
-          onClose={() => showPluginInfo(false)}
-        >
-          <PluginInfoModalHeader>
-            <div className="flex flex-row items-end justify-start gap-2">
-              <Icon
-                className="text-slate-500 hover:text-slate-700 cursor-pointer"
-                size={1}
-                fa="fa-solid fa-caret-left"
-                onClick={() => showPluginInfo(false)}
-              />
-            </div>
-          </PluginInfoModalHeader>
-          <PluginInfoModalContent className="flex flex-col items-center cursor-default">
-            <img
-              className="w-12 h-12 mb-2"
-              src={config.icon || DefaultPluginIcon}
-              alt="Plugin Icon"
-            />
-            <span className="text-3xl text-blue-600 font-semibold">
-              {config.title}
-            </span>
-            <div className="text-slate-500 text-lg">{config.description}</div>
-          </PluginInfoModalContent>
-        </PluginInfoModal>
-      )}
-    </div>
-  );
-}
-
-function RemovePlugin(props: {
-  onRemove: MouseEventHandler;
-  showRemove: (show: boolean) => void;
-  config: PluginConfig;
-}): ReactElement {
-  const { onRemove, showRemove, config } = props;
-
-  const onCancel: MouseEventHandler = useCallback((e) => {
-    e.stopPropagation();
-    showRemove(false);
-  }, []);
-
-  return (
-    <div className="flex flex-col items-center w-full gap-1">
-      <div className="font-bold text-red-700">
-        {`Are you sure you want to remove "${config.title}" plugin?`}
-      </div>
-      <div className="mb-1">Warning: this cannot be undone.</div>
-      <div className="flex flex-row w-full gap-1">
-        <button className="flex-grow button p-1" onClick={onCancel}>
-          Cancel
-        </button>
-        <button
-          className="flex-grow font-bold bg-red-500 hover:bg-red-600 text-white rounded p-1"
-          onClick={onRemove}
-        >
-          Remove
-        </button>
-      </div>
-    </div>
-  );
-}
--- a/src/components/RequestBuilder/index.tsx
+++ b/src/components/RequestBuilder/index.tsx
@@ -1,154 +0,0 @@
-import React, { useCallback } from 'react';
-import c from 'classnames';
-
-export function InputBody(props: {
-  body: string;
-  setBody: (body: string) => void;
-}) {
-  return (
-    <textarea
-      className="textarea h-[90%] w-full resize-none"
-      value={props.body}
-      onChange={(e) => props.setBody(e.target.value)}
-    />
-  );
-}
-
-export function FormBodyTable(props: {
-  formBody: [string, string, boolean?][];
-  setFormBody: (formBody: [string, string, boolean?][]) => void;
-}) {
-  const toggleKV = useCallback(
-    (index: number) => {
-      const newFormBody = [...props.formBody];
-      newFormBody[index][2] = !newFormBody[index][2];
-      props.setFormBody(newFormBody);
-    },
-    [props.formBody],
-  );
-
-  const setKV = useCallback(
-    (index: number, key: string, value: string) => {
-      const newFormBody = [...props.formBody];
-      newFormBody[index] = [key, value];
-      props.setFormBody(newFormBody);
-
-      if (index === props.formBody.length - 1 && (key || value)) {
-        props.setFormBody([...newFormBody, ['', '', true]]);
-      }
-    },
-    [props.formBody],
-  );
-
-  const last = props.formBody.length - 1;
-
-  return (
-    <table className="border border-slate-300 border-collapse table-fixed w-full">
-      <tbody>
-        {props.formBody.map(([key, value, silent], i) => (
-          <tr
-            key={i}
-            className={c('border-b border-slate-200', {
-              'opacity-30': !!silent,
-            })}
-          >
-            <td className="w-8 text-center pt-2">
-              {last !== i && (
-                <input
-                  type="checkbox"
-                  onChange={() => toggleKV(i)}
-                  checked={!silent}
-                />
-              )}
-            </td>
-            <td className="border border-slate-300 font-bold align-top break-all w-fit">
-              <input
-                className="input py-1 px-2 w-full"
-                type="text"
-                value={key}
-                placeholder="Key"
-                onChange={(e) => {
-                  setKV(i, e.target.value, value);
-                }}
-              />
-            </td>
-            <td className="border border-slate-300 break-all align-top">
-              <input
-                className="input py-1 px-2 w-full"
-                type="text"
-                value={value}
-                placeholder="Value"
-                onChange={(e) => {
-                  setKV(i, key, e.target.value);
-                }}
-              />
-            </td>
-          </tr>
-        ))}
-      </tbody>
-    </table>
-  );
-}
-
-export function formatForRequest(
-  input: string | [string, string, boolean?][],
-  type: string,
-): string {
-  try {
-    let pairs: [string, string][] = [];
-
-    if (typeof input === 'string') {
-      const lines = input.split('\n').filter((line) => line.trim() !== '');
-      pairs = lines.map((line) => {
-        const [key, value] = line.split('=').map((part) => part.trim());
-        return [key, value];
-      });
-    } else {
-      pairs = input
-        .filter(([, , silent]) => silent !== true)
-        .map(([key, value]) => [key, value]);
-    }
-    if (type === 'text/plain') {
-      return JSON.stringify(input as string);
-    }
-    if (type === 'application/json') {
-      const jsonObject = JSON.parse(input as string);
-      return JSON.stringify(jsonObject);
-    }
-
-    if (type === 'application/x-www-form-urlencoded') {
-      const searchParams = new URLSearchParams();
-      pairs.forEach(([key, value]) => {
-        searchParams.append(key, value);
-      });
-      return searchParams.toString();
-    }
-
-    return pairs.map(([key, value]) => `${key}=${value}`).join('&');
-  } catch (e) {
-    console.error('Error formatting for request:', e);
-    return '';
-  }
-}
-
-export async function parseResponse(contentType: string, res: Response) {
-  const parsedResponseData = {
-    json: '',
-    text: '',
-    img: '',
-    headers: Array.from(res.headers.entries()),
-  };
-
-  if (contentType?.includes('application/json')) {
-    parsedResponseData.json = await res.json();
-  } else if (contentType?.includes('text')) {
-    parsedResponseData.text = await res.text();
-  } else if (contentType?.includes('image')) {
-    const blob = await res.blob();
-    parsedResponseData.img = URL.createObjectURL(blob);
-  } else {
-    parsedResponseData.text = await res.text();
-  }
-
-  return parsedResponseData;
-}
--- a/src/components/RequestDetail/index.tsx
+++ b/src/components/RequestDetail/index.tsx
@@ -1,528 +0,0 @@
-import React, {
-  ReactElement,
-  ReactNode,
-  useCallback,
-  useEffect,
-  useState,
-} from 'react';
-import { notarizeRequest, useRequest } from '../../reducers/requests';
-import classNames from 'classnames';
-import { useDispatch } from 'react-redux';
-import {
-  Route,
-  Routes,
-  useLocation,
-  useNavigate,
-  useParams,
-} from 'react-router';
-import Icon from '../Icon';
-import NavigateWithParams from '../NavigateWithParams';
-import {
-  set,
-  get,
-  MAX_SENT_LS_KEY,
-  MAX_RECEIVED_LS_KEY,
-  getMaxRecv,
-  getMaxSent,
-} from '../../utils/storage';
-import { MAX_RECV, MAX_SENT } from '../../utils/constants';
-
-type Props = {
-  requestId: string;
-};
-
-export default function RequestDetail(props: Props): ReactElement {
-  const request = useRequest(props.requestId);
-  const navigate = useNavigate();
-
-  const notarize = useCallback(async () => {
-    if (!request) return;
-
-    navigate('/notary/' + request.requestId);
-  }, [request, props.requestId]);
-
-  if (!request) return <></>;
-
-  return (
-    <>
-      <div className="flex flex-row flex-nowrap relative items-center bg-slate-300 py-2 px-2 gap-2">
-        <Icon
-          className="cursor-point text-slate-400 hover:text-slate-700"
-          fa="fa-solid fa-xmark"
-          onClick={() => navigate('/requests')}
-        />
-        <RequestDetailsHeaderTab path="/headers">
-          Headers
-        </RequestDetailsHeaderTab>
-        <RequestDetailsHeaderTab path="/payloads">
-          Payload
-        </RequestDetailsHeaderTab>
-        <RequestDetailsHeaderTab path="/response">
-          Response
-        </RequestDetailsHeaderTab>
-        <RequestDetailsHeaderTab path="/advanced">
-          Advanced
-        </RequestDetailsHeaderTab>
-        <button
-          className="absolute right-2 bg-primary/[0.9] text-white font-bold px-2 py-0.5 hover:bg-primary/[0.8] active:bg-primary"
-          onClick={notarize}
-        >
-          Notarize
-        </button>
-      </div>
-      <Routes>
-        <Route
-          path="headers"
-          element={<RequestHeaders requestId={props.requestId} />}
-        />
-        <Route
-          path="payloads"
-          element={<RequestPayload requestId={props.requestId} />}
-        />
-        <Route
-          path="response"
-          element={<WebResponse requestId={props.requestId} />}
-        />
-        <Route path="advanced" element={<AdvancedOptions />} />
-        <Route path="/" element={<NavigateWithParams to="/headers" />} />
-      </Routes>
-    </>
-  );
-}
-
-function RequestDetailsHeaderTab(props: {
-  children: ReactNode;
-  path: string;
-}): ReactElement {
-  const loc = useLocation();
-  const params = useParams<{ requestId: string }>();
-  const navigate = useNavigate();
-  const selected = loc.pathname.includes(props.path);
-  return (
-    <div
-      className={classNames('font-bold', {
-        'text-slate-700 cursor-default': selected,
-        'text-slate-400 hover:text-slate-500 cursor-pointer': !selected,
-      })}
-      onClick={() => navigate('/requests/' + params.requestId + props.path)}
-    >
-      {props.children}
-    </div>
-  );
-}
-
-function AdvancedOptions(): ReactElement {
-  const [maxSent, setMaxSent] = useState(MAX_SENT);
-  const [maxRecv, setMaxRecv] = useState(MAX_RECV);
-
-  const [dirty, setDirty] = useState(false);
-
-  useEffect(() => {
-    (async () => {
-      setMaxRecv((await getMaxRecv()) || MAX_RECV);
-      setMaxSent((await getMaxSent()) || MAX_SENT);
-    })();
-  }, []);
-
-  const onSave = useCallback(async () => {
-    await set(MAX_RECEIVED_LS_KEY, maxRecv.toString());
-    await set(MAX_SENT_LS_KEY, maxSent.toString());
-    setDirty(false);
-  }, [maxSent, maxRecv]);
-
-  return (
-    <div className="flex flex-col flex-nowrap py-1 px-2 gap-2">
-      <div className="font-semibold">Max Sent Data</div>
-      <input
-        type="number"
-        className="input border"
-        value={maxSent}
-        min={0}
-        onChange={(e) => {
-          setMaxSent(parseInt(e.target.value));
-          setDirty(true);
-        }}
-      />
-      <div className="font-semibold">Max Received Data</div>
-      <input
-        type="number"
-        className="input border"
-        value={maxRecv}
-        min={0}
-        onChange={(e) => {
-          setMaxRecv(parseInt(e.target.value));
-          setDirty(true);
-        }}
-      />
-      <div className="flex flex-row flex-nowrap justify-end gap-2 p-2">
-        <button
-          className="button !bg-primary/[0.9] hover:bg-primary/[0.8] active:bg-primary !text-white"
-          disabled={!dirty}
-          onClick={onSave}
-        >
-          Save
-        </button>
-      </div>
-    </div>
-  );
-}
-
-function RequestPayload(props: Props): ReactElement {
-  const data = useRequest(props.requestId);
-  const [url, setUrl] = useState<URL | null>();
-  const [json, setJson] = useState<any | null>();
-  const [formData, setFormData] = useState<URLSearchParams | null>(null);
-
-  useEffect(() => {
-    if (data?.formData) {
-      const params = new URLSearchParams();
-      Object.entries(data.formData).forEach(([key, values]) => {
-        values.forEach((v) => params.append(key, v));
-      });
-      setFormData(params);
-    }
-  }, [data?.formData]);
-
-  useEffect(() => {
-    try {
-      setUrl(new URL(data!.url));
-    } catch (e) {}
-
-    try {
-      if (data?.requestBody) {
-        setJson(JSON.parse(data.requestBody));
-      }
-    } catch (e) {
-      console.error(e);
-      setJson(null);
-    }
-  }, [data]);
-
-  return (
-    <div className="flex flex-col flex-nowrap overflow-y-auto">
-      <table className="border border-slate-300 border-collapse table-fixed w-full">
-        {!!url?.searchParams.size && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Query String Parameters
-                </td>
-              </tr>
-            </thead>
-            <tbody>
-              {Array.from(url.searchParams).map((param) => {
-                return (
-                  <tr key={param[0]} className="border-b border-slate-200">
-                    <td className="border border-slate-300 font-bold align-top py-1 px-2 break-all">
-                      {param[0]}
-                    </td>
-                    <td className="border border-slate-300 break-all align-top py-1 px-2 break-all">
-                      {param[1]}
-                    </td>
-                  </tr>
-                );
-              })}
-            </tbody>
-          </>
-        )}
-        {!!json && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Body Payload
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={10}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={JSON.stringify(json, null, 2)}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!!formData && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Form Data
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={10}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={formData.toString()}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!json && !!data?.requestBody && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Body
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={6}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={data?.requestBody}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-      </table>
-    </div>
-  );
-}
-
-function WebResponse(props: Props): ReactElement {
-  const data = useRequest(props.requestId);
-  const [response, setResponse] = useState<Response | null>(null);
-  const [json, setJSON] = useState<any | null>(null);
-  const [text, setText] = useState<string | null>(null);
-  const [img, setImg] = useState<string | null>(null);
-  const [formData, setFormData] = useState<URLSearchParams | null>(null);
-
-  useEffect(() => {
-    if (data?.formData) {
-      const params = new URLSearchParams();
-      Object.entries(data.formData).forEach(([key, values]) => {
-        values.forEach((v) => params.append(key, v));
-      });
-      setFormData(params);
-    }
-  }, [data?.formData]);
-
-  const replay = useCallback(async () => {
-    if (!data) return null;
-
-    const options = {
-      method: data.method,
-      headers: data.requestHeaders.reduce(
-        // @ts-ignore
-        (acc: { [key: string]: string }, h: chrome.webRequest.HttpHeader) => {
-          if (typeof h.name !== 'undefined' && typeof h.value !== 'undefined') {
-            acc[h.name] = h.value;
-          }
-          return acc;
-        },
-        {},
-      ),
-      body: data?.requestBody,
-    };
-
-    if (formData) {
-      options.body = formData.toString();
-    }
-
-    // @ts-ignore
-    const resp = await fetch(data.url, options);
-    setResponse(resp);
-
-    const contentType =
-      resp?.headers.get('content-type') || resp?.headers.get('Content-Type');
-
-    if (contentType?.includes('application/json')) {
-      resp.json().then((json) => {
-        if (json) {
-          setJSON(json);
-        }
-      });
-    } else if (contentType?.includes('text')) {
-      resp.text().then((_text) => {
-        if (_text) {
-          setText(_text);
-        }
-      });
-    } else if (contentType?.includes('image')) {
-      resp.blob().then((blob) => {
-        if (blob) {
-          setImg(URL.createObjectURL(blob));
-        }
-      });
-    } else {
-      resp
-        .blob()
-        .then((blob) => blob.text())
-        .then((_text) => {
-          if (_text) {
-            setText(_text);
-          }
-        });
-    }
-  }, [data, formData]);
-
-  return (
-    <div className="flex flex-col flex-nowrap overflow-y-auto">
-      {!response && (
-        <div className="p-2">
-          <button className="button" onClick={replay}>
-            Fetch Response
-          </button>
-        </div>
-      )}
-      <table className="border border-slate-300 border-collapse table-fixed w-full">
-        {!!response?.headers && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Headers
-                </td>
-              </tr>
-            </thead>
-            <tbody>
-              {Array.from(response.headers.entries()).map(([name, value]) => {
-                return (
-                  <tr className="border-b border-slate-200">
-                    <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-                      {name}
-                    </td>
-                    <td className="border border-slate-300 break-all align-top py-1 px-2">
-                      {value}
-                    </td>
-                  </tr>
-                );
-              })}
-            </tbody>
-          </>
-        )}
-        {!!json && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  JSON
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={16}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={JSON.stringify(json, null, 2)}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!!text && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Text
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={16}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={text}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!!img && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Img
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td className="bg-slate-100" colSpan={2}>
-                <img src={img} />
-              </td>
-            </tr>
-          </>
-        )}
-      </table>
-    </div>
-  );
-}
-
-function RequestHeaders(props: Props): ReactElement {
-  const data = useRequest(props.requestId);
-
-  return (
-    <div className="flex flex-col flex-nowrap overflow-y-auto">
-      <table className="border border-slate-300 border-collapse table-fixed">
-        <thead className="bg-slate-200">
-          <tr>
-            <td colSpan={2} className="border border-slate-300 py-1 px-2">
-              General
-            </td>
-          </tr>
-        </thead>
-        <tbody>
-          <tr className="border-b border-slate-200">
-            <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-              Method
-            </td>
-            <td className="border border-slate-300 break-all align-top py-1 px-2">
-              {data?.method}
-            </td>
-          </tr>
-          <tr className="border-b border-slate-200">
-            <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-              Type
-            </td>
-            <td className="border border-slate-300 break-all align-top py-1 px-2">
-              {data?.type}
-            </td>
-          </tr>
-          <tr className="border-b border-slate-200">
-            <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-              URL
-            </td>
-            <td className="border border-slate-300 break-all align-top py-1 px-2">
-              {data?.url}
-            </td>
-          </tr>
-        </tbody>
-        <thead className="bg-slate-200">
-          <tr>
-            <td colSpan={2} className="border border-slate-300 py-1 px-2">
-              Headers
-            </td>
-          </tr>
-        </thead>
-        <tbody className="">
-          {data?.requestHeaders?.map((h) => (
-            <tr key={h.name} className="border-b border-slate-200">
-              <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-                {h.name}
-              </td>
-              <td className="border border-slate-300 break-all align-top py-1 px-2">
-                {h.value}
-              </td>
-            </tr>
-          ))}
-        </tbody>
-      </table>
-    </div>
-  );
-}
--- a/src/components/RequestTable/index.tsx
+++ b/src/components/RequestTable/index.tsx
@@ -1,121 +0,0 @@
-import React, {
-  ReactElement,
-  useCallback,
-  useEffect,
-  useRef,
-  useState,
-} from 'react';
-import { BackgroundActiontype, RequestLog } from '../../entries/Background/rpc';
-import { useNavigate } from 'react-router';
-import Fuse from 'fuse.js';
-import Icon from '../Icon';
-import { useDispatch } from 'react-redux';
-import { setRequests } from '../../reducers/requests';
-import classNames from 'classnames';
-
-type Props = {
-  requests: RequestLog[];
-  shouldFix?: boolean;
-};
-
-export default function RequestTable(props: Props): ReactElement {
-  const { requests } = props;
-  const navigate = useNavigate();
-  const dispatch = useDispatch();
-  const [query, setQuery] = useState('');
-
-  const fuse = new Fuse(requests, {
-    isCaseSensitive: true,
-    minMatchCharLength: 2,
-    shouldSort: true,
-    findAllMatches: true,
-    threshold: 0.2,
-    includeMatches: true,
-    ignoreLocation: true,
-    keys: [
-      { name: 'method', weight: 2 },
-      { name: 'type', weight: 2 },
-      { name: 'requestHeaders.name', weight: 1 },
-      { name: 'requestHeaders.value', weight: 1 },
-      { name: 'responseHeaders.name', weight: 1 },
-      { name: 'responseHeaders.value', weight: 1 },
-      { name: 'url', weight: 1 },
-    ],
-  });
-
-  const result = query ? fuse.search(query) : null;
-  const list = result ? result.map((r) => r.item) : requests;
-
-  const reset = useCallback(async () => {
-    await chrome.runtime.sendMessage({
-      type: BackgroundActiontype.clear_requests,
-    });
-    dispatch(setRequests([]));
-  }, [dispatch]);
-
-  return (
-    <div className="flex flex-col flex-nowrap flex-grow">
-      <div
-        className={classNames(
-          'flex flex-row flex-nowrap bg-slate-300 py-1 px-2 gap-2',
-          {
-            'fixed top-[4.5rem] w-full shadow': props.shouldFix,
-          },
-        )}
-      >
-        <input
-          className="input w-full"
-          type="text"
-          placeholder="Search..."
-          onChange={(e) => setQuery(e.target.value)}
-          value={query}
-        ></input>
-        <Icon
-          className="text-slate-400"
-          fa="fa-solid fa-trash"
-          onClick={reset}
-        />
-      </div>
-      <div className="flex-grow">
-        <table className="border border-slate-300 border-collapse table-fixed w-full">
-          <thead className="bg-slate-200">
-            <tr>
-              <td className="border border-slate-300 py-1 px-2 w-2/12">
-                Method
-              </td>
-              <td className="border border-slate-300 py-1 px-2 w-3/12">Type</td>
-              <td className="border border-slate-300 py-1 px-2">Name</td>
-            </tr>
-          </thead>
-          <tbody>
-            {list.map((r) => {
-              let url;
-
-              try {
-                url = new URL(r.url);
-              } catch (e) {}
-
-              return (
-                <tr
-                  key={r.requestId}
-                  onClick={() => navigate('/requests/' + r.requestId)}
-                  className="cursor-pointer hover:bg-slate-100"
-                >
-                  <td className="border border-slate-200 align-top py-1 px-2 whitespace-nowrap w-2/12">
-                    {r.method}
-                  </td>
-                  <td className="border border-slate-200 align-top py-1 px-2 whitespace-nowrap w-3/12">
-                    {r.type}
-                  </td>
-                  <td className="border border-slate-200 py-1 px-2 break-all truncate">
-                    {url?.pathname}
-                  </td>
-                </tr>
-              );
-            })}
-          </tbody>
-        </table>
-      </div>
-    </div>
-  );
-}
--- a/src/components/ResponseDetail/index.tsx
+++ b/src/components/ResponseDetail/index.tsx
@@ -1,105 +0,0 @@
-import classNames from 'classnames';
-import React, { ReactElement } from 'react';
-
-export default function ResponseDetail(props: {
-  responseData: {
-    json: any | null;
-    text: string | null;
-    img: string | null;
-    headers: [string, string][] | null;
-  } | null;
-  className?: string;
-}): ReactElement {
-  return (
-    <div
-      className={classNames(
-        'flex flex-col flex-nowrap overflow-y-auto',
-        props.className,
-      )}
-    >
-      <table className="border border-slate-300 border-collapse table-fixed w-full">
-        {!!props.responseData?.json && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  JSON
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={16}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={JSON.stringify(props.responseData.json, null, 2)}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!!props.responseData?.text && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Text
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td colSpan={2}>
-                <textarea
-                  rows={16}
-                  className="w-full bg-slate-100 text-slate-600 p-2 text-xs break-all h-full outline-none font-mono"
-                  value={props.responseData.text}
-                ></textarea>
-              </td>
-            </tr>
-          </>
-        )}
-        {!!props.responseData?.img && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Img
-                </td>
-              </tr>
-            </thead>
-            <tr>
-              <td className="bg-slate-100" colSpan={2}>
-                <img src={props.responseData.img} />
-              </td>
-            </tr>
-          </>
-        )}
-        {!!props.responseData?.headers && (
-          <>
-            <thead className="bg-slate-200">
-              <tr>
-                <td colSpan={2} className="border border-slate-300 py-1 px-2">
-                  Headers
-                </td>
-              </tr>
-            </thead>
-            <tbody>
-              {props.responseData?.headers.map(([name, value]) => {
-                return (
-                  <tr className="border-b border-slate-200">
-                    <td className="border border-slate-300 font-bold align-top py-1 px-2 whitespace-nowrap">
-                      {name}
-                    </td>
-                    <td className="border border-slate-300 break-all align-top py-1 px-2">
-                      {value}
-                    </td>
-                  </tr>
-                );
-              })}
-            </tbody>
-          </>
-        )}
-      </table>
-    </div>
-  );
-}
--- a/src/entries/Background/db.ts
+++ b/src/entries/Background/db.ts
@@ -1,633 +0,0 @@
-import { Level } from 'level';
-import { AbstractSublevel } from 'abstract-level';
-import { PluginConfig, PluginMetadata, sha256, urlify } from '../../utils/misc';
-import {
-  RequestHistory,
-  RequestLog,
-  RequestProgress,
-  UpsertRequestLog,
-} from './rpc';
-import mutex from './mutex';
-import { minimatch } from 'minimatch';
-const charwise = require('charwise');
-
-export const db = new Level('./ext-db', {
-  valueEncoding: 'json',
-});
-const historyDb = db.sublevel<string, RequestHistory>('history', {
-  valueEncoding: 'json',
-});
-const pluginDb = db.sublevel<string, string>('plugin', {
-  valueEncoding: 'hex',
-});
-const pluginConfigDb = db.sublevel<string, PluginConfig>('pluginConfig', {
-  valueEncoding: 'json',
-});
-const pluginMetadataDb = db.sublevel<string, PluginMetadata>('pluginMetadata', {
-  valueEncoding: 'json',
-});
-const connectionDb = db.sublevel<string, boolean>('connections', {
-  valueEncoding: 'json',
-});
-const localStorageDb = db.sublevel<string, any>('sessionStorage', {
-  valueEncoding: 'json',
-});
-const sessionStorageDb = db.sublevel<string, any>('localStorage', {
-  valueEncoding: 'json',
-});
-const appDb = db.sublevel<string, any>('app', {
-  valueEncoding: 'json',
-});
-const requestDb = db.sublevel<string, any>('requests', {
-  valueEncoding: 'json',
-});
-
-enum AppDatabaseKey {
-  DefaultPluginsInstalled = 'DefaultPluginsInstalled',
-}
-
-export async function upsertRequestLog(request: UpsertRequestLog) {
-  const existing = await getRequestLog(request.requestId);
-
-  if (existing) {
-    await requestDb.put(request.requestId, {
-      ...existing,
-      ...request,
-    });
-  } else if (request.url) {
-    const host = urlify(request.url)?.host;
-    if (host) {
-      await requestDb.put(request.requestId, request);
-      await requestDb
-        .sublevel(request.tabId.toString())
-        .put(request.requestId, '');
-      await requestDb.sublevel(host).put(request.requestId, '');
-    }
-  }
-}
-
-export async function getRequestLog(
-  requestId: string,
-): Promise<RequestLog | null> {
-  return requestDb.get(requestId).catch(() => null);
-}
-
-export async function removeRequestLog(requestId: string) {
-  const existing = await getRequestLog(requestId);
-  if (existing) {
-    await requestDb.del(requestId);
-    await requestDb.sublevel(existing.tabId.toString()).del(requestId);
-    const host = urlify(existing.url)?.host;
-    if (host) {
-      await requestDb.sublevel(host).del(requestId);
-    }
-  }
-}
-
-export async function removeRequestLogsByTabId(tabId: number) {
-  const requests = requestDb.sublevel(tabId.toString());
-  for await (const [requestId] of requests.iterator()) {
-    await removeRequestLog(requestId);
-  }
-}
-
-export async function getRequestLogsByTabId(tabId: number) {
-  const requests = requestDb.sublevel(tabId.toString());
-  const ret: RequestLog[] = [];
-  for await (const [requestId] of requests.iterator()) {
-    ret.push(await requestDb.get(requestId));
-  }
-  return ret;
-}
-
-export async function getRequestLogsByHost(host: string) {
-  const requests = requestDb.sublevel(host);
-  const ret: RequestLog[] = [];
-  for await (const [requestId] of requests.iterator()) {
-    ret.push(await requestDb.get(requestId));
-  }
-  return ret;
-}
-
-export async function clearAllRequestLogs() {
-  await requestDb.clear();
-}
-
-export async function addNotaryRequest(
-  now = Date.now(),
-  request: Omit<RequestHistory, 'status' | 'id'>,
-): Promise<RequestHistory> {
-  const id = charwise.encode(now).toString('hex');
-  const newReq: RequestHistory = {
-    ...request,
-    id,
-    status: '',
-  };
-  await historyDb.put(id, newReq);
-  return newReq;
-}
-
-export async function addNotaryRequestProofs(
-  id: string,
-  proof: { session: any; substrings: any },
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  const newReq: RequestHistory = {
-    ...existing,
-    proof,
-    status: 'success',
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function setNotaryRequestStatus(
-  id: string,
-  status: '' | 'pending' | 'success' | 'error',
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  const newReq = {
-    ...existing,
-    status,
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function setNotaryRequestError(
-  id: string,
-  error: any,
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  const newReq: RequestHistory = {
-    ...existing,
-    error,
-    status: 'error',
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function setNotaryRequestProgress(
-  id: string,
-  progress: RequestProgress,
-  errorMessage?: string,
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-  if (!existing) return null;
-
-  const newReq: RequestHistory = {
-    ...existing,
-    progress,
-    errorMessage,
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function setNotaryRequestVerification(
-  id: string,
-  verification: {
-    sent: string;
-    recv: string;
-    verifierKey: string;
-    notaryKey?: string;
-  },
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  const newReq = {
-    ...existing,
-    verification,
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function removeNotaryRequest(
-  id: string,
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  await historyDb.del(id);
-
-  return existing;
-}
-
-export async function getNotaryRequests(): Promise<RequestHistory[]> {
-  const retVal = [];
-  for await (const [key, value] of historyDb.iterator()) {
-    retVal.push(value);
-  }
-  return retVal;
-}
-
-export async function getNotaryRequest(
-  id: string,
-): Promise<RequestHistory | null> {
-  return historyDb.get(id).catch(() => null);
-}
-
-export async function getPluginHashes(): Promise<string[]> {
-  const retVal: string[] = [];
-  for await (const [key] of pluginDb.iterator()) {
-    retVal.push(key);
-  }
-  return retVal;
-}
-
-export async function getPluginByUrl(url: string): Promise<string | null> {
-  try {
-    const plugin = await pluginDb.get(url);
-    return plugin;
-  } catch (e) {
-    return null;
-  }
-}
-
-export async function addPlugin(
-  hex: string,
-  url: string,
-): Promise<string | null> {
-  const hash = await sha256(hex);
-
-  if (await getPluginByUrl(url)) {
-    return url;
-  }
-
-  await pluginDb.put(url, hex);
-  return hash;
-}
-
-export async function removePlugin(url: string): Promise<string | null> {
-  const existing = await pluginDb.get(url);
-
-  if (!existing) return null;
-
-  await pluginDb.del(url);
-
-  return url;
-}
-
-export async function getPluginConfigByUrl(
-  url: string,
-): Promise<PluginConfig | null> {
-  try {
-    const config = await pluginConfigDb.get(url);
-    return config;
-  } catch (e) {
-    return null;
-  }
-}
-
-export async function addPluginConfig(
-  url: string,
-  config: PluginConfig,
-): Promise<PluginConfig | null> {
-  if (await getPluginConfigByUrl(url)) {
-    return null;
-  }
-
-  await pluginConfigDb.put(url, config);
-  return config;
-}
-
-export async function removePluginConfig(
-  url: string,
-): Promise<PluginConfig | null> {
-  const existing = await pluginConfigDb.get(url);
-
-  if (!existing) return null;
-
-  await pluginConfigDb.del(url);
-
-  return existing;
-}
-
-export async function getPlugins(): Promise<
-  (PluginConfig & { hash: string; metadata: PluginMetadata })[]
-> {
-  const hashes = await getPluginHashes();
-  const ret: (PluginConfig & { hash: string; metadata: PluginMetadata })[] = [];
-  for (const hash of hashes) {
-    const config = await getPluginConfigByUrl(hash);
-    const metadata = await getPluginMetadataByUrl(hash);
-    if (config) {
-      ret.push({
-        ...config,
-        hash,
-        metadata: metadata
-          ? {
-              ...metadata,
-              hash,
-            }
-          : {
-              filePath: '',
-              origin: '',
-              hash,
-            },
-      });
-    }
-  }
-  return ret;
-}
-
-export async function getPluginMetadataByUrl(
-  url: string,
-): Promise<PluginMetadata | null> {
-  try {
-    const metadata = await pluginMetadataDb.get(url);
-    return metadata;
-  } catch (e) {
-    return null;
-  }
-}
-
-export async function addPluginMetadata(
-  url: string,
-  metadata: PluginMetadata,
-): Promise<PluginMetadata | null> {
-  await pluginMetadataDb.put(url, metadata);
-  return metadata;
-}
-
-export async function removePluginMetadata(
-  url: string,
-): Promise<PluginMetadata | null> {
-  const existing = await pluginMetadataDb.get(url);
-
-  if (!existing) return null;
-
-  await pluginMetadataDb.del(url);
-
-  return existing;
-}
-
-export async function setNotaryRequestCid(
-  id: string,
-  cid: string,
-): Promise<RequestHistory | null> {
-  const existing = await historyDb.get(id);
-
-  if (!existing) return null;
-
-  const newReq = {
-    ...existing,
-    cid,
-  };
-
-  await historyDb.put(id, newReq);
-
-  return newReq;
-}
-
-export async function setConnection(origin: string) {
-  if (await getConnection(origin)) return null;
-  await connectionDb.put(origin, true);
-  return true;
-}
-
-export async function getCookiesByHost(linkOrHost: string) {
-  const ret: { [key: string]: string } = {};
-  const url = urlify(linkOrHost);
-  const isHost = !url;
-  const host = isHost ? linkOrHost : url.host;
-  const requests = await getRequestLogsByHost(host);
-
-  let filteredRequest: RequestLog | null = null;
-
-  for (const request of requests) {
-    if (isHost) {
-      if (!filteredRequest || filteredRequest.updatedAt > request.updatedAt) {
-        filteredRequest = request;
-      }
-    } else {
-      const { origin, pathname } = urlify(request.url) || {};
-      const link = [origin, pathname].join('');
-      if (
-        minimatch(link, linkOrHost) &&
-        (!filteredRequest || filteredRequest.updatedAt > request.updatedAt)
-      ) {
-        filteredRequest = request;
-      }
-    }
-  }
-
-  if (!filteredRequest) return ret;
-
-  for (const header of filteredRequest.requestHeaders) {
-    if (header.name.toLowerCase() === 'cookie') {
-      header.value?.split(';').forEach((cookie) => {
-        const [name, value] = cookie.split('=');
-        ret[name.trim()] = value.trim();
-      });
-    }
-  }
-
-  return ret;
-}
-
-export async function deleteConnection(origin: string) {
-  return mutex.runExclusive(async () => {
-    if (await getConnection(origin)) {
-      await connectionDb.del(origin);
-    }
-  });
-}
-
-export async function getConnection(origin: string) {
-  try {
-    const existing = await connectionDb.get(origin);
-    return existing;
-  } catch (e) {
-    return null;
-  }
-}
-export async function getHeadersByHost(linkOrHost: string) {
-  const ret: { [key: string]: string } = {};
-  const url = urlify(linkOrHost);
-  const isHost = !url;
-  const host = isHost ? linkOrHost : url.host;
-  const requests = await getRequestLogsByHost(host);
-
-  let filteredRequest: RequestLog | null = null;
-
-  for (const request of requests) {
-    if (isHost) {
-      if (!filteredRequest || filteredRequest.updatedAt > request.updatedAt) {
-        filteredRequest = request;
-      }
-    } else {
-      const { origin, pathname } = urlify(request.url) || {};
-      const link = [origin, pathname].join('');
-      if (
-        minimatch(link, linkOrHost) &&
-        (!filteredRequest || filteredRequest.updatedAt > request.updatedAt)
-      ) {
-        filteredRequest = request;
-      }
-    }
-  }
-
-  if (!filteredRequest) return ret;
-
-  for (const header of filteredRequest.requestHeaders) {
-    if (header.name.toLowerCase() !== 'cookie') {
-      ret[header.name] = header.value || '';
-    }
-  }
-
-  return ret;
-}
-
-export async function setLocalStorage(
-  host: string,
-  name: string,
-  value: string,
-) {
-  return mutex.runExclusive(async () => {
-    await localStorageDb.sublevel(host).put(name, value);
-    return true;
-  });
-}
-
-export async function setSessionStorage(
-  host: string,
-  name: string,
-  value: string,
-) {
-  return mutex.runExclusive(async () => {
-    await sessionStorageDb.sublevel(host).put(name, value);
-    return true;
-  });
-}
-
-export async function clearLocalStorage(host: string) {
-  return mutex.runExclusive(async () => {
-    await localStorageDb.sublevel(host).clear();
-    return true;
-  });
-}
-
-export async function clearSessionStorage(host: string) {
-  return mutex.runExclusive(async () => {
-    await sessionStorageDb.sublevel(host).clear();
-    return true;
-  });
-}
-
-export async function getLocalStorageByHost(host: string) {
-  const ret: { [key: string]: string } = {};
-  for await (const [key, value] of localStorageDb.sublevel(host).iterator()) {
-    ret[key] = value;
-  }
-  return ret;
-}
-
-export async function getSessionStorageByHost(host: string) {
-  const ret: { [key: string]: string } = {};
-  for await (const [key, value] of sessionStorageDb.sublevel(host).iterator()) {
-    ret[key] = value;
-  }
-  return ret;
-}
-
-async function getDefaultPluginsInstalled(): Promise<string | boolean> {
-  return appDb.get(AppDatabaseKey.DefaultPluginsInstalled).catch(() => false);
-}
-
-export async function setDefaultPluginsInstalled(
-  installed: string | boolean = false,
-) {
-  return mutex.runExclusive(async () => {
-    await appDb.put(AppDatabaseKey.DefaultPluginsInstalled, installed);
-  });
-}
-
-export async function getAppState() {
-  return {
-    defaultPluginsInstalled: await getDefaultPluginsInstalled(),
-  };
-}
-
-export async function resetDB() {
-  return mutex.runExclusive(async () => {
-    return Promise.all([
-      localStorageDb.clear(),
-      sessionStorageDb.clear(),
-      requestDb.clear(),
-    ]);
-  });
-}
-
-export async function getDBSizeByRoot(
-  rootDB: AbstractSublevel<Level, any, any, any>,
-): Promise<number> {
-  return new Promise(async (resolve, reject) => {
-    let size = 0;
-
-    for await (const sublevel of rootDB.keys({ keyEncoding: 'utf8' })) {
-      const link = sublevel.split('!')[1];
-      const sub = rootDB.sublevel(link);
-      for await (const [key, value] of sub.iterator()) {
-        size += key.length + value.length;
-      }
-    }
-
-    resolve(size);
-  });
-}
-
-export async function getRecursiveDBSize(
-  db: AbstractSublevel<Level, any, any, any>,
-): Promise<number> {
-  return new Promise(async (resolve, reject) => {
-    let size = 0;
-    for await (const sublevel of db.keys({ keyEncoding: 'utf8' })) {
-      const parts = sublevel.split('!');
-      if (parts.length === 1) {
-        const value = await db.get(parts[0]);
-        size += parts[0].length + (value ? JSON.stringify(value).length : 0);
-      } else {
-        const sub = db.sublevel(parts[1]);
-        size +=
-          (await getRecursiveDBSize(
-            sub as unknown as AbstractSublevel<Level, any, any, any>,
-          )) + parts[1].length;
-      }
-    }
-    resolve(size);
-  });
-}
-
-export async function getDBSize(): Promise<number> {
-  const sizes = await Promise.all([
-    getDBSizeByRoot(localStorageDb),
-    getDBSizeByRoot(sessionStorageDb),
-    getRecursiveDBSize(requestDb),
-  ]);
-  return sizes.reduce((a, b) => a + b, 0);
-}
--- a/src/entries/Background/handlers.ts
+++ b/src/entries/Background/handlers.ts
@@ -1,109 +0,0 @@
-import { BackgroundActiontype } from './rpc';
-import mutex from './mutex';
-import browser from 'webextension-polyfill';
-import { addRequest } from '../../reducers/requests';
-import { urlify } from '../../utils/misc';
-import { getRequestLog, upsertRequestLog } from './db';
-
-export const onSendHeaders = (
-  details: browser.WebRequest.OnSendHeadersDetailsType,
-) => {
-  return mutex.runExclusive(async () => {
-    const { method, tabId, requestId } = details;
-
-    if (method !== 'OPTIONS') {
-      const { origin, pathname } = urlify(details.url) || {};
-
-      const link = [origin, pathname].join('');
-
-      if (link && details.requestHeaders) {
-        upsertRequestLog({
-          method: details.method as 'GET' | 'POST',
-          type: details.type,
-          url: details.url,
-          initiator: details.initiator || null,
-          requestHeaders: details.requestHeaders || [],
-          tabId: tabId,
-          requestId: requestId,
-          updatedAt: Date.now(),
-        });
-      }
-    }
-  });
-};
-
-export const onBeforeRequest = (
-  details: browser.WebRequest.OnBeforeRequestDetailsType,
-) => {
-  mutex.runExclusive(async () => {
-    const { method, requestBody, tabId, requestId } = details;
-
-    if (method === 'OPTIONS') return;
-
-    if (requestBody) {
-      if (requestBody.raw && requestBody.raw[0]?.bytes) {
-        try {
-          await upsertRequestLog({
-            requestBody: Buffer.from(requestBody.raw[0].bytes).toString(
-              'utf-8',
-            ),
-            requestId: requestId,
-            tabId: tabId,
-            updatedAt: Date.now(),
-          });
-        } catch (e) {
-          console.error(e);
-        }
-      } else if (requestBody.formData) {
-        await upsertRequestLog({
-          formData: Object.fromEntries(
-            Object.entries(requestBody.formData).map(([key, value]) => [
-              key,
-              Array.isArray(value) ? value : [value],
-            ]),
-          ),
-          requestId: requestId,
-          tabId: tabId,
-          updatedAt: Date.now(),
-        });
-      }
-    }
-  });
-};
-
-export const onResponseStarted = (
-  details: browser.WebRequest.OnResponseStartedDetailsType,
-) => {
-  mutex.runExclusive(async () => {
-    const { method, responseHeaders, tabId, requestId } = details;
-
-    if (method === 'OPTIONS') return;
-
-    await upsertRequestLog({
-      method: details.method,
-      type: details.type,
-      url: details.url,
-      initiator: details.initiator || null,
-      tabId: tabId,
-      requestId: requestId,
-      responseHeaders,
-      updatedAt: Date.now(),
-    });
-
-    const newLog = await getRequestLog(requestId);
-
-    if (!newLog) {
-      console.error('Request log not found', requestId);
-      return;
-    }
-
-    chrome.runtime.sendMessage({
-      type: BackgroundActiontype.push_action,
-      data: {
-        tabId: details.tabId,
-        request: newLog,
-      },
-      action: addRequest(newLog),
-    });
-  });
-};
--- a/src/entries/Background/index.ts
+++ b/src/entries/Background/index.ts
@@ -1,103 +0,0 @@
-import { onBeforeRequest, onResponseStarted, onSendHeaders } from './handlers';
-import browser from 'webextension-polyfill';
-import {
-  getAppState,
-  removePlugin,
-  removeRequestLogsByTabId,
-  setDefaultPluginsInstalled,
-} from './db';
-import { installPlugin } from './plugins/utils';
-
-(async () => {
-  browser.webRequest.onSendHeaders.addListener(
-    onSendHeaders,
-    {
-      urls: ['<all_urls>'],
-    },
-    ['requestHeaders', 'extraHeaders'],
-  );
-
-  browser.webRequest.onBeforeRequest.addListener(
-    onBeforeRequest,
-    {
-      urls: ['<all_urls>'],
-    },
-    ['requestBody'],
-  );
-
-  browser.webRequest.onResponseStarted.addListener(
-    onResponseStarted,
-    {
-      urls: ['<all_urls>'],
-    },
-    ['responseHeaders', 'extraHeaders'],
-  );
-
-  browser.tabs.onRemoved.addListener((tabId) => {
-    removeRequestLogsByTabId(tabId);
-  });
-
-  const { defaultPluginsInstalled } = await getAppState();
-
-  switch (defaultPluginsInstalled) {
-    case false: {
-      try {
-        const twitterProfileUrl = browser.runtime.getURL(
-          'twitter_profile.wasm',
-        );
-        const discordDmUrl = browser.runtime.getURL('discord_dm.wasm');
-        await installPlugin(twitterProfileUrl);
-        await installPlugin(discordDmUrl);
-      } finally {
-        await setDefaultPluginsInstalled('0.1.0.703');
-      }
-      break;
-    }
-    case true: {
-      try {
-        await removePlugin(
-          '6931d2ad63340d3a1fb1a5c1e3f4454c5a518164d6de5ad272e744832355ee02',
-        );
-        const twitterProfileUrl = browser.runtime.getURL(
-          'twitter_profile.wasm',
-        );
-        await installPlugin(twitterProfileUrl);
-      } finally {
-        await setDefaultPluginsInstalled('0.1.0.703');
-      }
-      break;
-    }
-    case '0.1.0.703':
-      break;
-  }
-
-  const { initRPC } = await import('./rpc');
-  await createOffscreenDocument();
-  initRPC();
-})();
-
-let creatingOffscreen: any;
-async function createOffscreenDocument() {
-  const offscreenUrl = browser.runtime.getURL('offscreen.html');
-  // @ts-ignore
-  const existingContexts = await browser.runtime.getContexts({
-    contextTypes: ['OFFSCREEN_DOCUMENT'],
-    documentUrls: [offscreenUrl],
-  });
-
-  if (existingContexts.length > 0) {
-    return;
-  }
-
-  if (creatingOffscreen) {
-    await creatingOffscreen;
-  } else {
-    creatingOffscreen = (chrome as any).offscreen.createDocument({
-      url: 'offscreen.html',
-      reasons: ['WORKERS'],
-      justification: 'workers for multithreading',
-    });
-    await creatingOffscreen;
-    creatingOffscreen = null;
-  }
-}
--- a/src/entries/Background/mutex.ts
+++ b/src/entries/Background/mutex.ts
@@ -1,5 +0,0 @@
-import { Mutex } from 'async-mutex';
-
-const mutex = new Mutex();
-
-export default mutex;
--- a/src/entries/Background/plugins/utils.ts
+++ b/src/entries/Background/plugins/utils.ts
@@ -1,38 +0,0 @@
-import { addPlugin, addPluginConfig, addPluginMetadata } from '../db';
-import { getPluginConfig } from '../../../utils/misc';
-
-export async function installPlugin(
-  url: string,
-  origin = '',
-  filePath = '',
-  metadata: {[key: string]: string} = {},
-) {
-  const resp = await fetch(url);
-  const arrayBuffer = await resp.arrayBuffer();
-
-  const config = await getPluginConfig(arrayBuffer);
-  const hex = Buffer.from(arrayBuffer).toString('hex');
-  const hash = await addPlugin(hex, url);
-
-  await addPluginConfig(url, config);
-  await addPluginMetadata(url, {
-    ...metadata,
-    origin,
-    filePath,
-  });
-  return hash;
-}
-
-export function mapSecretsToRange(secrets: string[], text: string) {
-  return secrets
-    .map((secret: string) => {
-      const index = text.indexOf(secret);
-      return index > -1
-        ? {
-          start: index,
-          end: index + secret.length,
-        }
-        : null;
-    })
-    .filter((data: any) => !!data) as { start: number; end: number }[]
-}
--- a/src/entries/Background/rpc.ts
+++ b/src/entries/Background/rpc.ts
--- a/src/entries/Background/ws.ts
+++ b/src/entries/Background/ws.ts
@@ -1,481 +0,0 @@
-import { devlog, safeParseJSON, sha256 } from '../../utils/misc';
-import {
-  appendIncomingPairingRequests,
-  appendIncomingProofRequests,
-  appendOutgoingPairingRequests,
-  appendOutgoingProofRequest,
-  setClientId,
-  setConnected,
-  setIncomingPairingRequest,
-  setIncomingProofRequest,
-  setIsProving,
-  setIsVerifying,
-  setOutgoingPairingRequest,
-  setOutgoingProofRequest,
-  setP2PError,
-  setP2PPresentation,
-  setPairing,
-} from '../../reducers/p2p';
-import { pushToRedux } from '../utils';
-import { getPluginByUrl } from './db';
-import browser from 'webextension-polyfill';
-import { OffscreenActionTypes } from '../Offscreen/types';
-import { getMaxRecv, getMaxSent, getRendezvousApi } from '../../utils/storage';
-import { SidePanelActionTypes } from '../SidePanel/types';
-import { Transcript, VerifierOutput } from 'tlsn-js';
-
-const state: {
-  clientId: string;
-  pairing: string;
-  socket: WebSocket | null;
-  connected: boolean;
-  reqId: number;
-  incomingPairingRequests: string[];
-  outgoingPairingRequests: string[];
-  incomingProofRequests: string[];
-  outgoingProofRequests: string[];
-  isProving: boolean;
-  isVerifying: boolean;
-  presentation: null | { sent: string; recv: string };
-} = {
-  clientId: '',
-  pairing: '',
-  socket: null,
-  connected: false,
-  reqId: 0,
-  incomingPairingRequests: [],
-  outgoingPairingRequests: [],
-  incomingProofRequests: [],
-  outgoingProofRequests: [],
-  isProving: false,
-  isVerifying: false,
-  presentation: null,
-};
-
-export const getP2PState = async () => {
-  pushToRedux(setPairing(state.pairing));
-  pushToRedux(setConnected(state.connected));
-  pushToRedux(setClientId(state.clientId));
-  pushToRedux(setIncomingPairingRequest(state.incomingPairingRequests));
-  pushToRedux(setOutgoingPairingRequest(state.outgoingPairingRequests));
-  pushToRedux(setIncomingProofRequest(state.incomingProofRequests));
-  pushToRedux(setOutgoingProofRequest(state.outgoingProofRequests));
-  pushToRedux(setIsProving(state.isProving));
-  pushToRedux(setIsVerifying(state.isVerifying));
-  pushToRedux(setP2PPresentation(state.presentation));
-};
-
-export const connectSession = async () => {
-  if (state.socket) return;
-
-  const rendezvousAPI = await getRendezvousApi();
-
-  const socket = new WebSocket(rendezvousAPI);
-
-  socket.onopen = () => {
-    devlog('Connected to websocket');
-    state.connected = true;
-    state.socket = socket;
-    pushToRedux(setConnected(true));
-    const heartbeatInterval = setInterval(() => {
-      if (socket.readyState === 1) {
-        // Check if connection is open
-        socket.send(bufferify({ method: 'ping' }));
-      } else {
-        disconnectSession();
-        clearInterval(heartbeatInterval); // Stop heartbeat if connection is closed
-      }
-    }, 55000);
-  };
-
-  socket.onmessage = async (event) => {
-    const message: any = safeParseJSON(await event.data.text());
-
-    if (message.error) {
-      pushToRedux(setP2PError(message.error.message));
-      return;
-    }
-
-    switch (message.method) {
-      case 'client_connect': {
-        const { clientId } = message.params;
-        state.clientId = clientId;
-        pushToRedux(setClientId(clientId));
-        break;
-      }
-      case 'pair_request': {
-        const { from } = message.params;
-        state.incomingPairingRequests = [
-          ...new Set(state.incomingPairingRequests.concat(from)),
-        ];
-        pushToRedux(appendIncomingPairingRequests(from));
-        sendMessage(from, 'pair_request_sent', { pairId: state.clientId });
-        break;
-      }
-      case 'pair_request_sent': {
-        const { pairId } = message.params;
-        state.outgoingPairingRequests = [
-          ...new Set(state.outgoingPairingRequests.concat(pairId)),
-        ];
-        pushToRedux(appendOutgoingPairingRequests(pairId));
-        break;
-      }
-      case 'pair_request_cancel': {
-        const { from } = message.params;
-        state.incomingPairingRequests = state.incomingPairingRequests.filter(
-          (id) => id !== from,
-        );
-        pushToRedux(setIncomingPairingRequest(state.incomingPairingRequests));
-        sendMessage(from, 'pair_request_cancelled', { pairId: state.clientId });
-        break;
-      }
-      case 'pair_request_cancelled': {
-        const { pairId } = message.params;
-        state.outgoingPairingRequests = state.outgoingPairingRequests.filter(
-          (id) => id !== pairId,
-        );
-        pushToRedux(setOutgoingPairingRequest(state.outgoingPairingRequests));
-        break;
-      }
-      case 'pair_request_reject': {
-        const { from } = message.params;
-        state.outgoingPairingRequests = state.outgoingPairingRequests.filter(
-          (id) => id !== from,
-        );
-        pushToRedux(setOutgoingPairingRequest(state.outgoingPairingRequests));
-        sendMessage(from, 'pair_request_rejected', { pairId: state.clientId });
-        break;
-      }
-      case 'pair_request_accept': {
-        const { from } = message.params;
-        state.pairing = from;
-        state.outgoingPairingRequests = state.outgoingPairingRequests.filter(
-          (id) => id !== from,
-        );
-        pushToRedux(setOutgoingPairingRequest(state.outgoingPairingRequests));
-        pushToRedux(setPairing(from));
-        sendMessage(from, 'pair_request_success', { pairId: state.clientId });
-        break;
-      }
-      case 'pair_request_success': {
-        const { pairId } = message.params;
-        state.pairing = pairId;
-        pushToRedux(setPairing(pairId));
-        state.incomingPairingRequests = state.incomingPairingRequests.filter(
-          (id) => id !== pairId,
-        );
-        pushToRedux(setIncomingPairingRequest(state.incomingPairingRequests));
-        break;
-      }
-      case 'pair_request_rejected': {
-        const { pairId } = message.params;
-        state.incomingPairingRequests = state.incomingPairingRequests.filter(
-          (id) => id !== pairId,
-        );
-        pushToRedux(setIncomingPairingRequest(state.incomingPairingRequests));
-        break;
-      }
-      case 'request_proof': {
-        const { plugin, pluginHash, from } = message.params;
-        state.incomingProofRequests = [
-          ...new Set(state.incomingProofRequests.concat(plugin)),
-        ];
-        pushToRedux(appendIncomingProofRequests(plugin));
-        sendMessage(from, 'proof_request_received', { pluginHash });
-        break;
-      }
-      case 'request_proof_by_hash': {
-        const { pluginHash, from } = message.params;
-        const plugin = await getPluginByUrl(pluginHash);
-        if (plugin) {
-          state.incomingProofRequests = [
-            ...new Set(state.incomingProofRequests.concat(plugin)),
-          ];
-          pushToRedux(appendIncomingProofRequests(plugin));
-          sendMessage(from, 'proof_request_received', { pluginHash });
-        } else {
-          sendMessage(from, 'request_proof_by_hash_failed', { pluginHash });
-        }
-        break;
-      }
-      case 'request_proof_by_hash_failed': {
-        const { pluginHash } = message.params;
-        requestProof(pluginHash);
-        break;
-      }
-      case 'proof_request_received': {
-        const { pluginHash } = message.params;
-        state.outgoingProofRequests = [
-          ...new Set(state.outgoingProofRequests.concat(pluginHash)),
-        ];
-        pushToRedux(appendOutgoingProofRequest(pluginHash));
-        break;
-      }
-      case 'proof_request_cancelled':
-        await handleRemoveOutgoingProofRequest(message);
-        break;
-      case 'proof_request_reject': {
-        const { pluginHash, from } = message.params;
-        await handleRemoveOutgoingProofRequest(message);
-        sendMessage(from, 'proof_request_rejected', { pluginHash });
-        break;
-      }
-      case 'proof_request_cancel': {
-        const { pluginHash, from } = message.params;
-        await handleRemoveIncomingProofRequest(message);
-        sendMessage(from, 'proof_request_cancelled', { pluginHash });
-        break;
-      }
-      case 'proof_request_rejected':
-        await handleRemoveIncomingProofRequest(message);
-        break;
-      case 'proof_request_accept': {
-        const { pluginHash, from } = message.params;
-        const maxSentData = await getMaxSent();
-        const maxRecvData = await getMaxRecv();
-        const rendezvousApi = await getRendezvousApi();
-        browser.runtime.sendMessage({
-          type: OffscreenActionTypes.start_p2p_verifier,
-          data: {
-            pluginHash,
-            maxSentData,
-            maxRecvData,
-            verifierUrl:
-              rendezvousApi + '?clientId=' + state.clientId + ':proof',
-            peerId: state.pairing,
-          },
-        });
-        state.isVerifying = true;
-        pushToRedux(setIsVerifying(true));
-        break;
-      }
-      case 'verifier_started': {
-        const { pluginHash } = message.params;
-        browser.runtime.sendMessage({
-          type: SidePanelActionTypes.start_p2p_plugin,
-          data: {
-            pluginHash: pluginHash,
-          },
-        });
-        break;
-      }
-      case 'prover_setup': {
-        const { pluginHash } = message.params;
-        browser.runtime.sendMessage({
-          type: OffscreenActionTypes.prover_setup,
-          data: {
-            pluginHash: pluginHash,
-          },
-        });
-        break;
-      }
-      case 'prover_started': {
-        const { pluginHash } = message.params;
-        browser.runtime.sendMessage({
-          type: OffscreenActionTypes.prover_started,
-          data: {
-            pluginHash: pluginHash,
-          },
-        });
-        break;
-      }
-      case 'proof_request_start': {
-        const { pluginHash, from } = message.params;
-        browser.runtime.sendMessage({
-          type: OffscreenActionTypes.start_p2p_proof_request,
-          data: {
-            pluginHash: pluginHash,
-          },
-        });
-        break;
-      }
-      case 'proof_request_end': {
-        const { pluginHash, proof } = message.params;
-        const transcript = new Transcript({
-          sent: proof.transcript.sent,
-          recv: proof.transcript.recv,
-        });
-
-        state.presentation = {
-          sent: transcript.sent(),
-          recv: transcript.recv(),
-        };
-
-        pushToRedux(setP2PPresentation(state.presentation));
-
-        browser.runtime.sendMessage({
-          type: OffscreenActionTypes.end_p2p_proof_request,
-          data: {
-            pluginHash: pluginHash,
-            proof: proof,
-          },
-        });
-        break;
-      }
-      default:
-        console.warn(`Unknown message type "${message.method}"`);
-        break;
-    }
-  };
-  socket.onerror = (error) => {
-    console.error('Error connecting to websocket:', error);
-    pushToRedux(setConnected(false));
-    pushToRedux(
-      setP2PError(
-        'Failed to connect to rendezvous server. Please check your connection and server URL.',
-      ),
-    );
-  };
-
-  socket.onclose = (event) => {
-    console.log('WebSocket connection closed:', event.code, event.reason);
-    pushToRedux(setConnected(false));
-    if (event.code !== 1000 && event.code !== 1001) {
-      pushToRedux(
-        setP2PError(
-          `WebSocket connection lost: ${event.reason || 'Unknown error'}`,
-        ),
-      );
-    }
-  };
-};
-
-async function handleRemoveOutgoingProofRequest(message: {
-  params: { pluginHash: string };
-}) {
-  const { pluginHash } = message.params;
-  state.outgoingProofRequests = state.outgoingProofRequests.filter(
-    (hash) => hash !== pluginHash,
-  );
-  pushToRedux(setOutgoingProofRequest(state.outgoingProofRequests));
-}
-
-async function handleRemoveIncomingProofRequest(message: {
-  params: { pluginHash: string };
-}) {
-  const { pluginHash } = message.params;
-  const plugin = await getPluginByUrl(pluginHash);
-  const incomingProofRequest = [];
-  for (const hex of state.incomingProofRequests) {
-    if (plugin) {
-      if (plugin !== hex) incomingProofRequest.push(hex);
-    } else {
-      if ((await sha256(hex)) !== pluginHash) incomingProofRequest.push(hex);
-    }
-  }
-
-  state.incomingProofRequests = incomingProofRequest;
-  pushToRedux(setIncomingProofRequest(state.incomingProofRequests));
-}
-
-export const disconnectSession = async () => {
-  if (!state.socket) return;
-  const socket = state.socket;
-  state.socket = null;
-  state.clientId = '';
-  state.pairing = '';
-  state.connected = false;
-  state.incomingPairingRequests = [];
-  state.outgoingPairingRequests = [];
-  state.incomingProofRequests = [];
-  state.outgoingProofRequests = [];
-  state.isProving = false;
-  state.isVerifying = false;
-  state.presentation = null;
-  pushToRedux(setPairing(''));
-  pushToRedux(setConnected(false));
-  pushToRedux(setClientId(''));
-  pushToRedux(setIncomingPairingRequest([]));
-  pushToRedux(setOutgoingPairingRequest([]));
-  pushToRedux(setIncomingProofRequest([]));
-  pushToRedux(setOutgoingProofRequest([]));
-  pushToRedux(setIsProving(false));
-  pushToRedux(setIsVerifying(false));
-  pushToRedux(setP2PPresentation(null));
-  await socket.close();
-};
-
-export async function sendMessage(
-  target: string,
-  method: string,
-  params?: any,
-) {
-  const { socket, clientId } = state;
-
-  if (clientId === target) {
-    console.error('client cannot send message to itself.');
-    return;
-  }
-
-  if (!socket) {
-    console.error('socket connection not found.');
-    return;
-  }
-
-  if (!clientId) {
-    console.error('clientId not found.');
-    return;
-  }
-
-  socket.send(
-    bufferify({
-      method,
-      params: {
-        from: clientId,
-        to: target,
-        id: state.reqId++,
-        ...params,
-      },
-    }),
-  );
-}
-
-export async function sendPairedMessage(method: string, params?: any) {
-  const { pairing } = state;
-
-  if (!pairing) {
-    console.error('not paired to a peer.');
-    return;
-  }
-
-  sendMessage(pairing, method, params);
-}
-
-export const requestProof = async (pluginHash: string) => {
-  const pluginHex = await getPluginByUrl(pluginHash);
-  sendPairedMessage('request_proof', {
-    plugin: pluginHex,
-    pluginHash,
-  });
-};
-
-export const endProofRequest = async (data: {
-  pluginHash: string;
-  proof: VerifierOutput;
-}) => {
-  const transcript = new Transcript({
-    sent: data.proof.transcript?.sent || [],
-    recv: data.proof.transcript?.recv || [],
-  });
-
-  state.presentation = {
-    sent: transcript.sent(),
-    recv: transcript.recv(),
-  };
-
-  pushToRedux(setP2PPresentation(state.presentation));
-
-  sendPairedMessage('proof_request_end', {
-    pluginHash: data.pluginHash,
-    proof: data.proof,
-  });
-};
-
-export const onProverInstantiated = async () => {
-  state.isProving = true;
-  pushToRedux(setIsProving(true));
-};
-
-function bufferify(data: any): Buffer {
-  return Buffer.from(JSON.stringify(data));
-}
--- a/src/entries/Content/content.ts
+++ b/src/entries/Content/content.ts
@@ -1,58 +0,0 @@
-import { ContentScriptTypes, RPCClient } from './rpc';
-import { PresentationJSON } from 'tlsn-js/build/types';
-
-const client = new RPCClient();
-
-class TLSN {
-  async notarize(
-    url: string,
-    requestOptions?: {
-      method?: string;
-      headers?: { [key: string]: string };
-      body?: string;
-    },
-    proofOptions?: {
-      notaryUrl?: string;
-      websocketProxyUrl?: string;
-      maxSentData?: number;
-      maxRecvData?: number;
-      metadata?: {
-        [k: string]: string;
-      };
-    },
-  ): Promise<PresentationJSON> {
-    const resp = await client.call(ContentScriptTypes.notarize, {
-      url,
-      method: requestOptions?.method,
-      headers: requestOptions?.headers,
-      body: requestOptions?.body,
-      maxSentData: proofOptions?.maxSentData,
-      maxRecvData: proofOptions?.maxRecvData,
-      notaryUrl: proofOptions?.notaryUrl,
-      websocketProxyUrl: proofOptions?.websocketProxyUrl,
-      metadata: proofOptions?.metadata,
-    });
-
-    return resp;
-  }
-
-  async runPlugin(url: string, params?: Record<string, string>) {
-    const resp = await client.call(ContentScriptTypes.run_plugin_by_url, {
-      url,
-      params,
-    });
-
-    return resp;
-  }
-}
-
-const connect = async () => {
-  return new TLSN();
-};
-
-// @ts-ignore
-window.tlsn = {
-  connect,
-};
-
-window.dispatchEvent(new CustomEvent('tlsn_loaded'));
--- a/src/entries/Content/index.ts
+++ b/src/entries/Content/index.ts
@@ -1,119 +0,0 @@
-import browser, { browserAction } from 'webextension-polyfill';
-import { ContentScriptRequest, ContentScriptTypes, RPCServer } from './rpc';
-import { BackgroundActiontype, RequestHistory } from '../Background/rpc';
-import { urlify } from '../../utils/misc';
-
-(async () => {
-  loadScript('content.bundle.js');
-  const server = new RPCServer();
-
-  chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
-    if (message.type === BackgroundActiontype.get_local_storage) {
-      chrome.runtime.sendMessage({
-        type: BackgroundActiontype.set_local_storage,
-        data: { ...localStorage },
-      });
-    }
-  });
-
-  chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
-    if (message.type === BackgroundActiontype.get_session_storage) {
-      chrome.runtime.sendMessage({
-        type: BackgroundActiontype.set_session_storage,
-        data: { ...sessionStorage },
-      });
-    }
-  });
-
-  server.on(
-    ContentScriptTypes.notarize,
-    async (
-      request: ContentScriptRequest<{
-        url: string;
-        method?: string;
-        headers?: { [key: string]: string };
-        metadata?: { [key: string]: string };
-        body?: string;
-        notaryUrl?: string;
-        websocketProxyUrl?: string;
-        maxSentData?: number;
-        maxRecvData?: number;
-      }>,
-    ) => {
-      const {
-        url,
-        method,
-        headers,
-        body,
-        maxSentData,
-        maxRecvData,
-        notaryUrl,
-        websocketProxyUrl,
-        metadata,
-      } = request.params || {};
-
-      if (!url || !urlify(url)) throw new Error('invalid url.');
-
-      const proof = await browser.runtime.sendMessage({
-        type: BackgroundActiontype.notarize_request,
-        data: {
-          ...getPopupData(),
-          url,
-          method,
-          headers,
-          body,
-          maxSentData,
-          maxRecvData,
-          notaryUrl,
-          websocketProxyUrl,
-          metadata,
-        },
-      });
-
-      return proof;
-    },
-  );
-
-  server.on(
-    ContentScriptTypes.run_plugin_by_url,
-    async (
-      request: ContentScriptRequest<{
-        url: string;
-        params?: Record<string, string>;
-      }>,
-    ) => {
-      const { url, params } = request.params || {};
-
-      if (!url) throw new Error('params must include url');
-
-      const response = await browser.runtime.sendMessage({
-        type: BackgroundActiontype.run_plugin_by_url_request,
-        data: {
-          ...getPopupData(),
-          url,
-          params,
-        },
-      });
-
-      return response;
-    },
-  );
-})();
-
-function loadScript(filename: string) {
-  const url = browser.runtime.getURL(filename);
-  const script = document.createElement('script');
-  script.setAttribute('type', 'text/javascript');
-  script.setAttribute('src', url);
-  document.body.appendChild(script);
-}
-
-function getPopupData() {
-  return {
-    origin: window.origin,
-    position: {
-      left: window.screen.width / 2 - 240,
-      top: window.screen.height / 2 - 300,
-    },
-  };
-}
--- a/src/entries/Content/rpc.ts
+++ b/src/entries/Content/rpc.ts
@@ -1,113 +0,0 @@
-import { deferredPromise, PromiseResolvers } from '../../utils/promise';
-
-export enum ContentScriptTypes {
-  notarize = 'tlsn/cs/notarize',
-  run_plugin_by_url = 'tlsn/cs/run_plugin_by_url',
-}
-
-export type ContentScriptRequest<params> = {
-  tlsnrpc: string;
-} & RPCRequest<ContentScriptTypes, params>;
-
-export type ContentScriptResponse = {
-  tlsnrpc: string;
-} & RPCResponse;
-
-export type RPCRequest<method, params> = {
-  id: number;
-  method: method;
-  params?: params;
-};
-
-export type RPCResponse = {
-  id: number;
-  result?: never;
-  error?: never;
-};
-
-export class RPCServer {
-  #handlers: Map<
-    ContentScriptTypes,
-    (message: ContentScriptRequest<any>) => Promise<any>
-  > = new Map();
-
-  constructor() {
-    window.addEventListener(
-      'message',
-      async (event: MessageEvent<ContentScriptRequest<never>>) => {
-        const data = event.data;
-
-        if (data.tlsnrpc !== '1.0') return;
-        if (!data.method) return;
-
-        const handler = this.#handlers.get(data.method);
-
-        if (handler) {
-          try {
-            const result = await handler(data);
-            window.postMessage({
-              tlsnrpc: '1.0',
-              id: data.id,
-              result,
-            });
-          } catch (error) {
-            window.postMessage({
-              tlsnrpc: '1.0',
-              id: data.id,
-              error,
-            });
-          }
-        } else {
-          throw new Error(`unknown method - ${data.method}`);
-        }
-      },
-    );
-  }
-
-  on(
-    method: ContentScriptTypes,
-    handler: (message: ContentScriptRequest<any>) => Promise<any>,
-  ) {
-    this.#handlers.set(method, handler);
-  }
-}
-
-export class RPCClient {
-  #requests: Map<number, PromiseResolvers> = new Map();
-  #id = 0;
-
-  get id() {
-    return this.#id++;
-  }
-
-  constructor() {
-    window.addEventListener(
-      'message',
-      (event: MessageEvent<ContentScriptResponse>) => {
-        const data = event.data;
-
-        if (data.tlsnrpc !== '1.0') return;
-
-        const promise = this.#requests.get(data.id);
-
-        if (promise) {
-          if (typeof data.result !== 'undefined') {
-            promise.resolve(data.result);
-            this.#requests.delete(data.id);
-          } else if (typeof data.error !== 'undefined') {
-            promise.reject(data.error);
-            this.#requests.delete(data.id);
-          }
-        }
-      },
-    );
-  }
-
-  async call(method: ContentScriptTypes, params?: any): Promise<never> {
-    const request = { tlsnrpc: '1.0', id: this.id, method, params };
-    const defer = deferredPromise();
-    this.#requests.set(request.id, defer);
-    window.postMessage(request, '*');
-    return defer.promise;
-  }
-}
--- a/src/entries/Offscreen/Offscreen.tsx
+++ b/src/entries/Offscreen/Offscreen.tsx
@@ -1,66 +0,0 @@
-import React, { useEffect } from 'react';
-import { OffscreenActionTypes } from './types';
-
-import { BackgroundActiontype } from '../Background/rpc';
-import {
-  initThreads,
-  onCreatePresentationRequest,
-  onCreateProverRequest,
-  onNotarizationRequest,
-  onProcessProveRequest,
-  onVerifyProof,
-  onVerifyProofRequest,
-  startP2PProver,
-  startP2PVerifier,
-} from './rpc';
-
-const Offscreen = () => {
-  useEffect(() => {
-    (async () => {
-      await initThreads();
-      // @ts-ignore
-      chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
-        switch (request.type) {
-          case OffscreenActionTypes.notarization_request: {
-            onNotarizationRequest(request);
-            break;
-          }
-          case OffscreenActionTypes.create_prover_request: {
-            onCreateProverRequest(request);
-            break;
-          }
-          case OffscreenActionTypes.create_presentation_request: {
-            onCreatePresentationRequest(request);
-            break;
-          }
-          case BackgroundActiontype.process_prove_request: {
-            onProcessProveRequest(request);
-            break;
-          }
-          case BackgroundActiontype.verify_proof: {
-            onVerifyProof(request, sendResponse);
-            return true;
-          }
-          case BackgroundActiontype.verify_prove_request: {
-            onVerifyProofRequest(request);
-            break;
-          }
-          case OffscreenActionTypes.start_p2p_verifier: {
-            startP2PVerifier(request);
-            break;
-          }
-          case OffscreenActionTypes.start_p2p_prover: {
-            startP2PProver(request);
-            break;
-          }
-          default:
-            break;
-        }
-      });
-    })();
-  }, []);
-
-  return <div className="App" />;
-};
-
-export default Offscreen;
--- a/src/entries/Offscreen/index.tsx
+++ b/src/entries/Offscreen/index.tsx
@@ -1,8 +0,0 @@
-import React from 'react';
-import { createRoot } from 'react-dom/client';
-
-import Offscreen from './Offscreen';
-
-const container = document.getElementById('app-container');
-const root = createRoot(container!);
-root.render(<Offscreen />);
--- a/src/entries/Offscreen/rpc.ts
+++ b/src/entries/Offscreen/rpc.ts
@@ -1,689 +0,0 @@
-import browser from 'webextension-polyfill';
-import {
-  BackgroundActiontype,
-  progressText,
-  RequestProgress,
-} from '../Background/rpc';
-import {
-  mapStringToRange,
-  NotaryServer,
-  Method,
-  Presentation as TPresentation,
-  Prover as TProver,
-  subtractRanges,
-  Transcript,
-  Verifier as TVerifier,
-} from 'tlsn-js';
-import { convertNotaryWsToHttp, devlog, urlify } from '../../utils/misc';
-import * as Comlink from 'comlink';
-import { OffscreenActionTypes } from './types';
-import { PresentationJSON } from 'tlsn-js/build/types';
-import { waitForEvent } from '../utils';
-import {
-  setNotaryRequestError,
-  setNotaryRequestStatus,
-} from '../Background/db';
-
-const { init, Prover, Presentation, Verifier }: any = Comlink.wrap(
-  new Worker(new URL('./worker.ts', import.meta.url)),
-);
-
-const provers: { [id: string]: TProver } = {};
-
-export const initThreads = async () => {
-  const loggingLevel = await browser.runtime.sendMessage({
-    type: BackgroundActiontype.get_logging_level,
-    hardwareConcurrency: navigator.hardwareConcurrency,
-  });
-  await init({
-    loggingLevel,
-    hardwareConcurrency: navigator.hardwareConcurrency,
-  });
-};
-export const onNotarizationRequest = async (request: any) => {
-  const { id } = request.data;
-
-  try {
-    const proof = await createProof(request.data);
-
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        proof,
-      },
-    });
-
-    browser.runtime.sendMessage({
-      type: OffscreenActionTypes.notarization_response,
-      data: {
-        id,
-        proof,
-      },
-    });
-  } catch (error: any) {
-    console.error(error);
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        error: error?.message || 'Unknown error',
-      },
-    });
-
-    browser.runtime.sendMessage({
-      type: OffscreenActionTypes.notarization_response,
-      data: {
-        id,
-        error: error?.message || 'Unknown error',
-      },
-    });
-  }
-};
-
-export const onCreateProverRequest = async (request: any) => {
-  const { id } = request.data;
-
-  try {
-    const prover = await createProver(request.data);
-
-    provers[id] = prover;
-
-    updateRequestProgress(id, RequestProgress.ReadingTranscript);
-    browser.runtime.sendMessage({
-      type: OffscreenActionTypes.create_prover_response,
-      data: {
-        id,
-        transcript: await prover.transcript(),
-      },
-    });
-  } catch (error: any) {
-    console.error(error);
-    browser.runtime.sendMessage({
-      type: OffscreenActionTypes.create_prover_response,
-      data: {
-        id,
-        error: error?.message || 'Unknown error',
-      },
-    });
-  }
-};
-
-export const onCreatePresentationRequest = async (request: any) => {
-  const { id, commit, notaryUrl, websocketProxyUrl } = request.data;
-  const prover = provers[id];
-
-  try {
-    if (!prover) throw new Error(`Cannot find prover ${id}.`);
-
-    updateRequestProgress(id, RequestProgress.FinalizingOutputs);
-    const notarizationOutputs = await prover.notarize(commit);
-
-    const presentation = (await new Presentation({
-      attestationHex: notarizationOutputs.attestation,
-      secretsHex: notarizationOutputs.secrets,
-      notaryUrl: notarizationOutputs.notaryUrl,
-      websocketProxyUrl: notarizationOutputs.websocketProxyUrl,
-      reveal: { ...commit, server_identity: false },
-    })) as TPresentation;
-    const json = await presentation.json();
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        proof: {
-          ...json,
-        },
-      },
-    });
-
-    delete provers[id];
-  } catch (error: any) {
-    console.error(error);
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        error: error?.message || 'Unknown error',
-      },
-    });
-  }
-};
-
-export const onProcessProveRequest = async (request: any) => {
-  const { id } = request.data;
-
-  try {
-    const proof = await createProof(request.data);
-
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        proof: proof,
-      },
-    });
-  } catch (error: any) {
-    console.error(error);
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.finish_prove_request,
-      data: {
-        id,
-        error: error?.message || 'Unknown error',
-      },
-    });
-  }
-};
-
-export const onVerifyProof = async (request: any, sendResponse: any) => {
-  const result = await verifyProof(request.data);
-  sendResponse(result);
-};
-
-export const onVerifyProofRequest = async (request: any) => {
-  const proof: PresentationJSON = request.data.proof;
-  const result: {
-    sent: string;
-    recv: string;
-    verifierKey?: string;
-    notaryKey?: string;
-  } = await verifyProof(proof);
-
-  chrome.runtime.sendMessage<any, string>({
-    type: BackgroundActiontype.finish_prove_request,
-    data: {
-      id: request.data.id,
-      verification: {
-        sent: result.sent,
-        recv: result.recv,
-        verifierKey: result.verifierKey,
-        notaryKey: result.notaryKey,
-      },
-    },
-  });
-};
-
-export const startP2PVerifier = async (request: any) => {
-  const { pluginHash, maxSentData, maxRecvData, verifierUrl } = request.data;
-  const verifier: TVerifier = await new Verifier({
-    id: pluginHash,
-    maxSentData: maxSentData,
-    maxRecvData: maxRecvData,
-  });
-
-  await verifier.connect(verifierUrl);
-  const proverStarted = waitForEvent(OffscreenActionTypes.prover_started);
-
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.verifier_started,
-    data: {
-      pluginHash,
-    },
-  });
-
-  await waitForEvent(OffscreenActionTypes.prover_setup);
-
-  verifier.verify().then((res) => {
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.proof_request_end,
-      data: {
-        pluginHash,
-        proof: res,
-      },
-    });
-  });
-
-  await proverStarted;
-
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.start_proof_request,
-    data: {
-      pluginHash,
-    },
-  });
-};
-
-export const startP2PProver = async (request: any) => {
-  const {
-    pluginUrl,
-    pluginHex,
-    url,
-    method,
-    headers,
-    body,
-    proverUrl,
-    websocketProxyUrl,
-    maxRecvData,
-    maxSentData,
-    secretHeaders,
-    getSecretResponse,
-  } = request.data;
-
-  const hostname = urlify(url)?.hostname || '';
-
-  const prover: TProver = await new Prover({
-    id: pluginUrl,
-    serverDns: hostname,
-    maxSentData,
-    maxRecvData,
-  });
-
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.prover_instantiated,
-    data: {
-      pluginUrl,
-    },
-  });
-
-  const proofRequestStart = waitForEvent(
-    OffscreenActionTypes.start_p2p_proof_request,
-  );
-
-  const proverSetup = prover.setup(proverUrl);
-  await new Promise((r) => setTimeout(r, 5000));
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.prover_setup,
-    data: {
-      pluginUrl,
-    },
-  });
-
-  await proverSetup;
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.prover_started,
-    data: {
-      pluginUrl,
-    },
-  });
-  await proofRequestStart;
-
-  await prover.sendRequest(websocketProxyUrl + `?token=${hostname}`, {
-    url,
-    method,
-    headers,
-    body,
-  });
-
-  const transcript = await prover.transcript();
-
-  let secretResps: string[] = [];
-
-  if (getSecretResponse) {
-    browser.runtime.sendMessage({
-      type: BackgroundActiontype.get_secrets_from_transcript,
-      data: {
-        pluginUrl,
-        pluginHex,
-        method: getSecretResponse,
-        transcript,
-        p2p: true,
-      },
-    });
-
-    const msg: any = await waitForEvent(
-      OffscreenActionTypes.get_secrets_from_transcript_success,
-    );
-
-    secretResps = msg.data.secretResps;
-  }
-
-  const commit = {
-    sent: subtractRanges(
-      { start: 0, end: transcript.sent.length },
-      mapStringToRange(
-        secretHeaders,
-        Buffer.from(transcript.sent).toString('utf-8'),
-      ),
-    ),
-    recv: subtractRanges(
-      { start: 0, end: transcript.recv.length },
-      mapStringToRange(
-        secretResps,
-        Buffer.from(transcript.recv).toString('utf-8'),
-      ),
-    ),
-  };
-
-  const endRequest = waitForEvent(OffscreenActionTypes.end_p2p_proof_request);
-  await prover.reveal({ ...commit, server_identity: false });
-  await endRequest;
-};
-
-async function createProof(options: {
-  url: string;
-  notaryUrl: string;
-  websocketProxyUrl: string;
-  method?: Method;
-  headers?: {
-    [name: string]: string;
-  };
-  body?: any;
-  maxSentData?: number;
-  maxRecvData?: number;
-  id: string;
-  secretHeaders: string[];
-  secretResps: string[];
-}): Promise<PresentationJSON> {
-  const {
-    url,
-    method = 'GET',
-    headers = {},
-    body,
-    maxSentData,
-    maxRecvData,
-    notaryUrl,
-    websocketProxyUrl,
-    id,
-    secretHeaders = [],
-    secretResps = [],
-  } = options;
-
-  const hostname = urlify(url)?.hostname || '';
-  const notary = NotaryServer.from(notaryUrl);
-
-  updateRequestProgress(id, RequestProgress.CreatingProver);
-  const prover: TProver = await new Prover({
-    id,
-    serverDns: hostname,
-    maxSentData,
-    maxRecvData,
-  });
-
-  updateRequestProgress(id, RequestProgress.GettingSession);
-  const sessionUrl = await notary.sessionUrl(maxSentData, maxRecvData);
-
-  updateRequestProgress(id, RequestProgress.SettingUpProver);
-  await prover.setup(sessionUrl);
-
-  await handleProgress(
-    id,
-    RequestProgress.SendingRequest,
-    () =>
-      prover.sendRequest(websocketProxyUrl + `?token=${hostname}`, {
-        url,
-        method,
-        headers,
-        body,
-      }),
-    `Error connecting to websocket proxy: ${websocketProxyUrl}. Please check the proxy URL and ensure it's accessible.`,
-  );
-
-  updateRequestProgress(id, RequestProgress.ReadingTranscript);
-  const transcript = await prover.transcript();
-
-  const commit = {
-    sent: subtractRanges(
-      { start: 0, end: transcript.sent.length },
-      mapStringToRange(
-        secretHeaders,
-        Buffer.from(transcript.sent).toString('utf-8'),
-      ),
-    ),
-    recv: subtractRanges(
-      { start: 0, end: transcript.recv.length },
-      mapStringToRange(
-        secretResps,
-        Buffer.from(transcript.recv).toString('utf-8'),
-      ),
-    ),
-  };
-
-  updateRequestProgress(id, RequestProgress.FinalizingOutputs);
-  const notarizationOutputs = await prover.notarize(commit);
-
-  const presentation = (await new Presentation({
-    attestationHex: notarizationOutputs.attestation,
-    secretsHex: notarizationOutputs.secrets,
-    notaryUrl: notarizationOutputs.notaryUrl,
-    websocketProxyUrl: notarizationOutputs.websocketProxyUrl,
-    reveal: { ...commit, server_identity: false },
-  })) as TPresentation;
-
-  const json = await presentation.json();
-  return {
-    ...json,
-  };
-}
-
-async function createProver(options: {
-  url: string;
-  notaryUrl: string;
-  websocketProxyUrl: string;
-  method?: Method;
-  headers?: {
-    [name: string]: string;
-  };
-  body?: any;
-  maxSentData?: number;
-  maxRecvData?: number;
-  id: string;
-}): Promise<TProver> {
-  const {
-    url,
-    method = 'GET',
-    headers = {},
-    body,
-    maxSentData,
-    maxRecvData,
-    notaryUrl,
-    websocketProxyUrl,
-    id,
-  } = options;
-
-  const hostname = urlify(url)?.hostname || '';
-  const notary = NotaryServer.from(notaryUrl);
-  try {
-    const prover: TProver = await handleProgress(
-      id,
-      RequestProgress.CreatingProver,
-      () =>
-        new Prover({
-          id,
-          serverDns: hostname,
-          maxSentData,
-          maxRecvData,
-        }),
-      'Error creating prover',
-    );
-
-    const sessionUrl = await handleProgress(
-      id,
-      RequestProgress.GettingSession,
-      () => notary.sessionUrl(maxSentData, maxRecvData),
-      'Error getting session from Notary',
-    );
-
-    await handleProgress(
-      id,
-      RequestProgress.SettingUpProver,
-      () => prover.setup(sessionUrl),
-      'Error setting up prover',
-    );
-
-    await handleProgress(
-      id,
-      RequestProgress.SendingRequest,
-      () =>
-        prover.sendRequest(websocketProxyUrl + `?token=${hostname}`, {
-          url,
-          method,
-          headers,
-          body,
-        }),
-      `Error connecting to websocket proxy: ${websocketProxyUrl}. Please check the proxy URL and ensure it's accessible.`,
-    );
-
-    return prover;
-  } catch (error) {
-    throw error;
-  }
-}
-
-async function verifyProof(proof: PresentationJSON): Promise<{
-  sent: string;
-  recv: string;
-  verifierKey?: string;
-  notaryKey?: string;
-}> {
-  let result: {
-    sent: string;
-    recv: string;
-    verifierKey?: string;
-    notaryKey?: string;
-  };
-
-  switch (proof.version) {
-    case '0.1.0-alpha.12':
-      result = await verify(proof);
-      break;
-    default:
-      result = {
-        sent: 'version not supported',
-        recv: 'version not supported',
-      };
-      break;
-  }
-
-  return result!;
-}
-
-async function verify(proof: PresentationJSON) {
-  if (proof.version !== '0.1.0-alpha.12') {
-    throw new Error('wrong version');
-  }
-  const presentation: TPresentation = await new Presentation(proof.data);
-  const verifierOutput = await presentation.verify();
-  const transcript = new Transcript({
-    sent: verifierOutput.transcript?.sent || [],
-    recv: verifierOutput.transcript?.recv || [],
-  });
-  const vk = await presentation.verifyingKey();
-  const verifyingKey = Buffer.from(vk.data).toString('hex');
-  const notaryUrl = proof.meta.notaryUrl
-    ? convertNotaryWsToHttp(proof.meta.notaryUrl)
-    : '';
-  const publicKey = await new NotaryServer(notaryUrl)
-    .publicKey()
-    .catch(() => '');
-  return {
-    sent: transcript.sent(),
-    recv: transcript.recv(),
-    verifierKey: verifyingKey,
-    notaryKey: publicKey,
-  };
-}
-
-function updateRequestProgress(
-  id: string,
-  progress: RequestProgress,
-  errorMessage?: string,
-) {
-  const progressMessage =
-    progress === RequestProgress.Error
-      ? `${errorMessage || 'Notarization Failed'}`
-      : progressText(progress);
-  devlog(`Request ${id}: ${progressMessage}`);
-
-  browser.runtime.sendMessage({
-    type: BackgroundActiontype.update_request_progress,
-    data: {
-      id,
-      progress,
-      errorMessage,
-    },
-  });
-}
-
-function getWebsocketErrorMessage(
-  lowerError: string,
-  fallbackMessage: string,
-): string {
-  const isWebsocketError =
-    lowerError.includes('websocket') ||
-    lowerError.includes('proxy') ||
-    lowerError.includes('connection') ||
-    lowerError.includes('network') ||
-    lowerError.includes('prover error') ||
-    lowerError.includes('io error') ||
-    lowerError.includes('certificate') ||
-    lowerError.includes('cert') ||
-    lowerError.includes('ssl') ||
-    lowerError.includes('tls');
-
-  if (!isWebsocketError) {
-    return fallbackMessage;
-  }
-
-  const errorPatterns = [
-    {
-      patterns: ['protocol', 'must use ws://', 'must use wss://'],
-      message:
-        'Invalid websocket proxy URL protocol. Please use ws:// or wss:// protocol in your websocket proxy URL settings.',
-    },
-    {
-      patterns: [
-        'not allowed',
-        'not whitelisted',
-        'forbidden',
-        'unauthorized',
-        'permission denied',
-        'access denied',
-      ],
-      message:
-        'Target domain not allowed by websocket proxy. Please check if the website domain is supported by your proxy service.',
-    },
-    {
-      patterns: ['dns', 'resolve'],
-      message:
-        'Cannot resolve websocket proxy domain. Please check your websocket proxy URL in settings.',
-    },
-    {
-      patterns: ['timeout'],
-      message:
-        'Websocket proxy connection timeout. Please check your websocket proxy URL in settings and ensure the server is accessible.',
-    },
-    {
-      patterns: ['refused', 'unreachable'],
-      message:
-        'Cannot reach websocket proxy server. Please check your websocket proxy URL in settings and ensure the server is accessible.',
-    },
-    {
-      patterns: ['cert', 'certificate', 'certnotvalidforname'],
-      message:
-        'Cannot connect to websocket proxy server. Please check your websocket proxy URL in settings and ensure it points to a valid websocket proxy service.',
-    },
-  ];
-
-  for (const { patterns, message } of errorPatterns) {
-    if (patterns.some((pattern) => lowerError.includes(pattern))) {
-      return message;
-    }
-  }
-
-  return 'Websocket proxy connection failed. Please check your websocket proxy URL in settings and ensure the server is accessible.';
-}
-
-async function handleProgress<T>(
-  id: string,
-  progress: RequestProgress,
-  action: () => Promise<T>,
-  errorMessage: string,
-): Promise<T> {
-  try {
-    updateRequestProgress(id, progress);
-    return await action();
-  } catch (error: any) {
-    const specificError = error?.message || '';
-    const lowerError = specificError.toLowerCase();
-
-    const finalErrorMessage = getWebsocketErrorMessage(
-      lowerError,
-      errorMessage,
-    );
-
-    updateRequestProgress(id, RequestProgress.Error, finalErrorMessage);
-    await setNotaryRequestStatus(id, 'error');
-    await setNotaryRequestError(id, finalErrorMessage);
-    throw error;
-  }
-}
--- a/src/entries/Offscreen/types.ts
+++ b/src/entries/Offscreen/types.ts
@@ -1,15 +0,0 @@
-export enum OffscreenActionTypes {
-  notarization_request = 'offscreen/notarization_request',
-  notarization_response = 'offscreen/notarization_response',
-  create_prover_request = 'offscreen/create_prover_request',
-  create_prover_response = 'offscreen/create_prover_response',
-  create_presentation_request = 'offscreen/create_presentation_request',
-  create_presentation_response = 'offscreen/create_presentation_response',
-  get_secrets_from_transcript_success = 'offscreen/get_secrets_from_transcript_success',
-  start_p2p_verifier = 'offscreen/start_p2p_verifier',
-  start_p2p_prover = 'offscreen/start_p2p_prover',
-  prover_started = 'offscreen/prover_started',
-  prover_setup = 'offscreen/prover_setup',
-  start_p2p_proof_request = 'offscreen/start_p2p_proof_request',
-  end_p2p_proof_request = 'offscreen/end_p2p_proof_request',
-}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
tsukino	a84944882a	test wasm component model	2025-10-01 19:03:39 +08:00
tsukino	fb57fd7002	Refactor to monorepo structure with extension and plugin-sdk packages	2025-09-30 19:00:08 +08:00
tsukino	9e53bddd34	Add serve:test script for local test page server	2025-09-30 18:42:22 +08:00
tsukino	bfb8f302c0	Implement Phase 5: error handling and edge cases for window management 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 05:18:45 +08:00
tsukino	048cd3b6ac	Add README for integration testing suite - Test flow diagram - Quick start guide - File descriptions and usage instructions - Testing best practices checklist - Common issues and troubleshooting - Issue reporting guidelines - CI/CD future considerations 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 05:06:39 +08:00
tsukino	dff3541dcf	Add comprehensive testing suite for multi-window management (Phase 4) Task 4.2: Integration test HTML page - Interactive test page with 6 test sections - Basic window opening with predefined URLs - Custom URL testing with input field - Window options testing (dimensions, overlay toggle) - Multiple windows test (3, 5, 10 windows) - Error handling tests (invalid URLs, protocols) - Legacy API backward compatibility test - Real-time statistics tracking - Styled UI with instructions and status messages Task 4.3: Manual testing checklist - 12 comprehensive test categories - 50+ individual test cases with pass/fail checkboxes - Tests cover: basic operations, custom URLs, options, multiple windows, request interception, error handling, cleanup, backward compatibility, overlay functionality, edge cases, console logs - Performance observation section - Sign-off and reporting format - Acceptance criteria for each test Task 4.4: Performance testing guidelines - 8 structured performance test procedures - Memory usage, CPU usage, and request processing metrics - Baseline performance targets and thresholds - Memory leak detection methodology - High-traffic site testing protocol - Request tracking overhead measurement - Cleanup efficiency verification - Long-running window test (30 minutes) - Periodic cleanup verification - Tools and commands reference - Performance issue detection checklist - Reporting template All 72 unit tests passing ✅ 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 05:05:51 +08:00
tsukino	9679787a41	Implement deferred overlay display with tabs.onUpdated (Tasks 3.4-3.5) - Add showOverlayWhenReady flag to ManagedWindow for lazy overlay display - Implement persistent tabs.onUpdated listener to show overlay when tab is ready - WindowManager.registerWindow no longer shows overlay immediately - Overlay shown when tab status becomes 'complete' via tabs.onUpdated - Add backward compatibility handler for TLSN_CONTENT_TO_EXTENSION - Legacy handler opens x.com window using new WindowManager system - Update tests to verify showOverlayWhenReady behavior - All 72 tests passing This fixes race condition where overlay was shown before content script was ready. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 05:00:56 +08:00
tsukino	7db6bef352	Implement multi-window management with tlsn.open() API - Add WindowManager for independent multi-window state tracking - Implement window.tlsn.open(url) client API with validation - Add OPEN_WINDOW message handler in background script - Add request interception and overlay updates per window - Add automatic cleanup of closed windows - Add URL protocol validation (http/https only) - Add comprehensive test coverage (72 tests passing) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 04:48:09 +08:00
tsukino	96055d8978	Add Vitest testing framework and WindowManager type definitions 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>	2025-09-30 04:27:44 +08:00
tsukino	988504500e	Add debug logging and enhance manifest configuration	2025-09-19 13:04:27 +08:00
tsukino	41fce44ca9	Add request interception and display to TLSN overlay	2025-09-17 16:22:09 +00:00
tsukino	7fb39c835b	Add TLSN overlay functionality to extension	2025-09-08 14:38:45 +00:00
tsukino	c17b19de70	wip	2025-09-02 08:15:22 +00:00
tsukino	92ecb55d6c	Refactor to minimal extension boilerplate	2025-08-24 11:47:33 +00:00
Kayanski	e497dcae27	Removing initiator url on requestId as well (#200 ) * Removing initiator url on requestId as well * Removing format * Another format removal	2025-09-16 21:26:50 +08:00
Kayanski	1cac2f79e9	Added close panel listener (#202 )	2025-09-16 21:26:41 +08:00
Hendrik Eeckhaut	650553e793	Removed bundled plugins and bump version to 1201 * Removed bundled plugins * bump version to 1201	2025-08-20 14:32:20 +02:00
dylan1951	de676eb498	fix: cookie parsing logic (again) (#194 ) Co-authored-by: dylan <dylanbradshaw107@hotmail.com>	2025-08-19 16:48:14 +02:00
Tanner	d334286cbd	Sidepanel supports <input> fields for user input through plugins (#195 ) Co-authored-by: Hendrik Eeckhaut <hendrik@eeckhaut.org>	2025-08-18 19:23:23 +02:00
baptistapedro	538331c847	remove defaultPluginsInstalled as it blocks testing with tlsn-plugin-boilerplate (#198 )	2025-08-18 10:43:15 +02:00
Hendrik Eeckhaut	df1af592b6	Interactive verifier support in browser extension (#196 ) * refactor: turn p2p prover into interactive verifier plugin prover	2025-08-18 10:01:59 +02:00
Tanner	7db5b12629	Network Tab moved to Dev Mode (#197 )	2025-08-14 10:45:26 +02:00