Examine source code of Google to Bing Auto-Search

{
  "manifest_version": 3,
  "name": "Google to Bing Auto-Search",
  "version": "1.1",
  "description": "Automatically searches Bing in the background when you search on Google. Now with more Search engine",
  "permissions": [
    "tabs",
    "alarms",
    "storage"
  ],
  "host_permissions": [
    "*://*.google.com/*",
    "*://*.duckduckgo.com/*",
    "*://search.brave.com/*",
    "*://*.bing.com/*"
  ],
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{936f8852-a4ff-46f9-8bd6-92602e7230c2}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "searchTerms"
        ]
      }
    }
  }
}