Examine source code of Direct Click

{
  "manifest_version": 2,
  "name": "Direct Click",
  "version": "0.2.1resigned1",
  "description": "Directly go to result page in Google search page.",
  "permissions": [],
  "icons": {
    "48": "icons/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.google.com/search*",
        "*://*.google.com/webhp*",
        "*://*.google.com.hk/search*",
        "*://*.google.com.hk/webhp*",
        "*://*.google.com.tw/search*",
        "*://*.google.com.tw/webhp*"
      ],
      "js": [
        "google.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "js/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-U3tt2BmRBTyMSw@jetpack"
    }
  }
}