Examine source code of No Adfoc.us

{
  "manifest_version": 2,
  "name": "No Adfoc.us Links",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "index.js"
      ]
    }
  ],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d7f7e2ce-4941-4d07-9af0-ce563b700523}"
    }
  }
}