Examine source code of Bing2Google

{
  "manifest_version": 2,
  "name": "Bing2Google",
  "version": "1.7",
  "description": "Redirects searches from Bing to Google.",
  "content_scripts": [
    {
      "matches": [
        "*://*.bing.com/*search*"
      ],
      "js": [
        "redirect.js"
      ],
      "run_at": "document_start"
    }
  ]
}