Examine source code of Google Search AI Blocker

{
  "manifest_version": 2,
  "name": "Google Search -AI Blocker",
  "version": "1.0",
  "description": "Automatically adds -ai to all Google searches",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icon.png"
  },
  "applications": {
    "gecko": {
      "id": "search-ai-blocker@example.com"
    }
  }
}