diff --git a/lib/browser/api/web-contents.js b/lib/browser/api/web-contents.js
index ed7bfe0b8b..a3b4009aae 100644
--- a/lib/browser/api/web-contents.js
+++ b/lib/browser/api/web-contents.js
@@ -10,6 +10,14 @@ session
 const binding = process.atomBinding('web_contents')
 const debuggerBinding = process.atomBinding('debugger')
 
+const WebContents = new EventEmitter()
+WebContents.create = (options = {}) => {
+  return binding.create(options)
+}
+WebContents.fromId = (id) => {
+  return binding.fromId(id)
+}
+
 let nextId = 0
 const getNextId = function () {
   return ++nextId
@@ -223,6 +231,8 @@ const wrapWebContents = function (webContents) {
 
     this._printToPDF(printingSetting, callback)
   }
+
+  WebContents.emit('web-contents-created', webContents)
 }
 
 binding._setWrapWebContents(wrapWebContents)
@@ -235,12 +245,4 @@ const wrapDebugger = function (webContentsDebugger) {
 
 debuggerBinding._setWrapDebugger(wrapDebugger)
 
-module.exports = {
-  create (options = {}) {
-    return binding.create(options)
-  },
-
-  fromId (id) {
-    return binding.fromId(id)
-  }
-}
+module.exports = WebContents
diff --git a/lib/browser/chrome-extension.js b/lib/browser/chrome-extension.js
index f14f56cb18..bb89c22e25 100644
--- a/lib/browser/chrome-extension.js
+++ b/lib/browser/chrome-extension.js
@@ -222,6 +222,13 @@ const loadDevToolsExtensions = function (win, manifests) {
   win.devToolsWebContents.executeJavaScript(`DevToolsAPI.addExtensions(${JSON.stringify(extensionInfoArray)})`)
 }
 
+webContents.on('web-contents-created', function (webContents) {
+  hookWindowForTabEvents(webContents)
+  webContents.on('devtools-opened', function () {
+    loadDevToolsExtensions(webContents, objectValues(manifestMap))
+  })
+})
+
 // The persistent path of "DevTools Extensions" preference file.
 let loadedExtensionsPath = null
 
@@ -312,18 +319,4 @@ app.once('ready', function () {
     delete manifestMap[manifest.extensionId]
     delete manifestNameMap[name]
   }
-
-  // Load extensions automatically when devtools is opened.
-  const init = BrowserWindow.prototype._init
-  BrowserWindow.prototype._init = function () {
-    init.call(this)
-    exports.loadDevToolsExtensions(this.webContents)
-  }
 })
-
-exports.loadDevToolsExtensions = function (webContents) {
-  hookWindowForTabEvents(webContents)
-  webContents.on('devtools-opened', function () {
-    loadDevToolsExtensions(webContents, objectValues(manifestMap))
-  })
-}
diff --git a/lib/browser/guest-view-manager.js b/lib/browser/guest-view-manager.js
index e810aa5494..fdd426c229 100644
--- a/lib/browser/guest-view-manager.js
+++ b/lib/browser/guest-view-manager.js
@@ -1,6 +1,5 @@
 'use strict'
 
-const ChromeExtension = require('./chrome-extension')
 const ipcMain = require('electron').ipcMain
 const webContents = require('electron').webContents
 
@@ -151,9 +150,6 @@ const createGuest = function (embedder, params) {
     embedder.send.apply(embedder, ['ELECTRON_GUEST_VIEW_INTERNAL_SIZE_CHANGED-' + guest.viewInstanceId].concat(args))
   })
 
-  // Enable DevTools extensions in guest view
-  ChromeExtension.loadDevToolsExtensions(guest)
-
   return id
 }