Examine source code of Google Forms State To URL

{
  "manifest_version": 2,
  "name": "Google Forms State To URL",
  "version": "1.0",
  "description": "Saves google forms state to URL using query params",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Google Forms State To URL",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://docs.google.com/forms/*"
      ],
      "js": [
        "content_scripts.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4084cdb8-e1eb-4f04-b5df-51f65bca5707}"
    }
  }
}