Examine source code of Lazy Google

{
  "manifest_version": 2,
  "name": "Lazy Google",
  "version": "1.0.3resigned1",
  "description": "Press ENTER after a Google search to quickly open the first result.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "include_globs": [
        "*://www.google.c??/",
        "*://www.google.c??/search*",
        "*://www.google.c??/webhp*",
        "*://www.google.com.??/",
        "*://www.google.com.??/search*",
        "*://www.google.com.??/webhp*",
        "*://www.google.co.??/",
        "*://www.google.co.??/search*",
        "*://www.google.co.??/webhp*",
        "*://www.google.??/",
        "*://www.google.??/search*",
        "*://www.google.??/webhp*"
      ],
      "js": [
        "bg.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{97bd5a62-3b3f-4370-9d77-bae8bb1b9930}"
    }
  }
}