diff --git a/app/scripts/background.js b/app/scripts/background.js
index 254737dec..5fb56d497 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -4,12 +4,13 @@ const asyncQ = require('async-q')
 const pipe = require('pump')
 const LocalStorageStore = require('obs-store/lib/localStorage')
 const storeTransform = require('obs-store/lib/transform')
+const ExtensionPlatform = require('./platforms/extension')
 const Migrator = require('./lib/migrator/')
 const migrations = require('./migrations/')
 const PortStream = require('./lib/port-stream.js')
-const notification = require('./lib/notifications.js')
+const NotificationManager = require('./lib/notification-manager.js')
 const MetamaskController = require('./metamask-controller')
-const extension = require('./lib/extension')
+const extension = require('extensionizer')
 const firstTimeState = require('./first-time-state')
 
 const STORAGE_KEY = 'metamask-config'
@@ -19,6 +20,10 @@ const log = require('loglevel')
 window.log = log
 log.setDefaultLevel(METAMASK_DEBUG ? 'debug' : 'warn')
 
+const platform = new ExtensionPlatform()
+const notificationManager = new NotificationManager()
+global.METAMASK_NOTIFIER = notificationManager
+
 let popupIsOpen = false
 
 // state persistence
@@ -68,6 +73,8 @@ function setupController (initState) {
     showUnapprovedTx: triggerUi,
     // initial state
     initState,
+    // platform specific api
+    platform,
   })
   global.metamaskController = controller
 
@@ -140,7 +147,7 @@ function setupController (initState) {
 
 // popup trigger
 function triggerUi () {
-  if (!popupIsOpen) notification.show()
+  if (!popupIsOpen) notificationManager.show()
 }
 
 // On first install, open a window to MetaMask website to how-it-works.
diff --git a/app/scripts/lib/notification-manager.js b/app/scripts/lib/notification-manager.js
new file mode 100644
index 000000000..ff8a4b2e5
--- /dev/null
+++ b/app/scripts/lib/notification-manager.js
@@ -0,0 +1,74 @@
+const extension = require('extensionizer')
+const height = 520
+const width = 360
+
+
+class NotificationManager {
+
+  //
+  // Public
+  //
+
+  show () {
+    this.getPopup((err, popup) => {
+      if (err) throw err
+
+      if (popup) {
+        // bring focus to existing popup
+        extension.windows.update(popup.id, { focused: true })
+      } else {
+        // create new popup
+        extension.windows.create({
+          url: 'notification.html',
+          type: 'popup',
+          width,
+          height,
+        })
+        .catch((reason) => {
+          log.error('failed to create poupup', reason)
+        })
+      }
+    })
+  }
+
+  getPopup (cb) {
+    this._getWindows((err, windows) => {
+      if (err) throw err
+      cb(null, this._getPopupIn(windows))
+    })
+  }
+
+  closePopup () {
+    this.getPopup((err, popup) => {
+      if (err) throw err
+      if (!popup) return
+      extension.windows.remove(popup.id, console.error)
+    })
+  }
+
+  //
+  // Private
+  //
+
+  _getWindows (cb) {
+    // Ignore in test environment
+    if (!extension.windows) {
+      return cb()
+    }
+
+    extension.windows.getAll({}, (windows) => {
+      cb(null, windows)
+    })
+  }
+
+  _getPopupIn (windows) {
+    return windows ? windows.find((win) => {
+      return (win && win.type === 'popup' &&
+        win.height === height &&
+        win.width === width)
+    }) : null
+  }
+
+}
+
+module.exports = NotificationManager
\ No newline at end of file
diff --git a/app/scripts/lib/notifications.js b/app/scripts/lib/notifications.js
deleted file mode 100644
index 0ec01f3a7..000000000
--- a/app/scripts/lib/notifications.js
+++ /dev/null
@@ -1,67 +0,0 @@
-const extension = require('./extension')
-const height = 520
-const width = 360
-
-const notifications = {
-  show,
-  getPopup,
-  closePopup,
-}
-module.exports = notifications
-window.METAMASK_NOTIFIER = notifications
-
-function show () {
-  getPopup((err, popup) => {
-    if (err) throw err
-
-    if (popup) {
-      // bring focus to existing popup
-      extension.windows.update(popup.id, { focused: true })
-    } else {
-      // create new popup
-      extension.windows.create({
-        url: 'notification.html',
-        type: 'popup',
-        width,
-        height,
-      })
-      .catch((reason) => {
-        log.error('failed to create poupup', reason)
-      })
-    }
-  })
-}
-
-function getWindows (cb) {
-  // Ignore in test environment
-  if (!extension.windows) {
-    return cb()
-  }
-
-  extension.windows.getAll({}, (windows) => {
-    cb(null, windows)
-  })
-}
-
-function getPopup (cb) {
-  getWindows((err, windows) => {
-    if (err) throw err
-    cb(null, getPopupIn(windows))
-  })
-}
-
-function getPopupIn (windows) {
-  return windows ? windows.find((win) => {
-    return (win && win.type === 'popup' &&
-      win.height === height &&
-      win.width === width)
-  }) : null
-}
-
-function closePopup () {
-  getPopup((err, popup) => {
-    if (err) throw err
-    if (!popup) return
-    extension.windows.remove(popup.id, console.error)
-  })
-}
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 03ea104e0..af8b4688d 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -20,7 +20,6 @@ const MessageManager = require('./lib/message-manager')
 const PersonalMessageManager = require('./lib/personal-message-manager')
 const TxManager = require('./transaction-manager')
 const ConfigManager = require('./lib/config-manager')
-const extension = require('./lib/extension')
 const autoFaucet = require('./lib/auto-faucet')
 const nodeify = require('./lib/nodeify')
 const accountImporter = require('./account-import-strategies')
@@ -34,6 +33,9 @@ module.exports = class MetamaskController extends EventEmitter {
     this.opts = opts
     let initState = opts.initState || {}
 
+    // platform-specific api
+    this.platform = opts.platform
+
     // observable state store
     this.store = new ObservableStore(initState)
 
@@ -629,7 +631,7 @@ module.exports = class MetamaskController extends EventEmitter {
         break
     }
 
-    if (url) extension.tabs.create({ url })
+    if (url) this.platform.openWindow({ url })
   }
 
   createShapeShiftTx (depositAddress, depositType) {
@@ -647,7 +649,7 @@ module.exports = class MetamaskController extends EventEmitter {
 
   setDefaultRpc () {
     this.configManager.setRpcTarget('http://localhost:8545')
-    extension.runtime.reload()
+    this.platform.reload()
     this.lookupNetwork()
     return Promise.resolve('http://localhost:8545')
   }
@@ -656,7 +658,7 @@ module.exports = class MetamaskController extends EventEmitter {
     this.configManager.setRpcTarget(rpcTarget)
     return this.preferencesController.updateFrequentRpcList(rpcTarget)
       .then(() => {
-        extension.runtime.reload()
+        this.platform.reload()
         this.lookupNetwork()
         return Promise.resolve(rpcTarget)
       })
@@ -664,13 +666,13 @@ module.exports = class MetamaskController extends EventEmitter {
 
   setProviderType (type) {
     this.configManager.setProviderType(type)
-    extension.runtime.reload()
+    this.platform.reload()
     this.lookupNetwork()
   }
 
   useEtherscanProvider () {
     this.configManager.useEtherscanProvider()
-    extension.runtime.reload()
+    this.platform.reload()
   }
 
   getNetworkState () {
diff --git a/app/scripts/platforms/extension.js b/app/scripts/platforms/extension.js
new file mode 100644
index 000000000..cbb35768e
--- /dev/null
+++ b/app/scripts/platforms/extension.js
@@ -0,0 +1,19 @@
+const extension = require('extensionizer')
+
+class ExtensionPlatform {
+
+  //
+  // Public
+  //
+
+  reload () {
+    extension.runtime.reload()
+  }
+
+  openWindow ({ url }) {
+    extension.tabs.create({ url })
+  }
+
+}
+
+module.exports = ExtensionPlatform
diff --git a/app/scripts/popup.js b/app/scripts/popup.js
index 62db68c10..6606c9584 100644
--- a/app/scripts/popup.js
+++ b/app/scripts/popup.js
@@ -3,8 +3,10 @@ const MetaMaskUiCss = require('../../ui/css')
 const startPopup = require('./popup-core')
 const PortStream = require('./lib/port-stream.js')
 const isPopupOrNotification = require('./lib/is-popup-or-notification')
-const extension = require('./lib/extension')
-const notification = require('./lib/notifications')
+const extension = require('extensionizer')
+const NotificationManager = require('./lib/notification-manager')
+
+const notificationManager = new NotificationManager()
 
 var css = MetaMaskUiCss()
 injectCss(css)
@@ -20,6 +22,6 @@ startPopup(portStream)
 
 function closePopupIfOpen (name) {
   if (name !== 'notification') {
-    notification.closePopup()
+    notificationManager.closePopup()
   }
 }
diff --git a/ui/app/reducers/app.js b/ui/app/reducers/app.js
index 3a6baca91..6f633ab4e 100644
--- a/ui/app/reducers/app.js
+++ b/ui/app/reducers/app.js
@@ -1,7 +1,7 @@
 const extend = require('xtend')
 const actions = require('../actions')
 const txHelper = require('../../lib/tx-helper')
-const notification = require('../../../app/scripts/lib/notifications')
+const notification = require('../../../app/scripts/lib/notification-manager')
 
 module.exports = reduceApp