Examine source code of Twitter Container V2

{
  "manifest_version": 2,
  "name": "Twitter Container",
  "version": "1.1",
  "description": "Isolate Twitter in a separate container for enhanced privacy.",
  "permissions": [
    "tabs",
    "storage",
    "cookies",
    "notifications"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icons/logo_64.png",
    "default_popup": "popup.html"
  },
  "options_page": "options.html",
  "icons": {
    "64": "icons/logo_64.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e9802ea9-f5a6-4c80-844d-1e7594074b12}"
    }
  }
}