Examine source code of Ad Limiter

{
  "manifest_version": 2,
  "name": "AdLimiter",
  "version": "3.2.0",
  "description": "Reduces the number of ads on search result pages.",
  "icons": {
    "48": "images/sitetruthicon-48.png"
  },
  "permissions": [
    "*://*.sitetruth.com/*",
    "webRequest",
    "storage",
    "notifications"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "notifier.js"
    ]
  },
  "web_accessible_resources": [
    "images/*.png",
    "images/*.gif",
    "images/*.png",
    "images/*.svg"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.bing.com/*",
        "*://*.duckduckgo.com/*",
        "*://*.google.com/*",
        "*://*.yandex.com/*",
        "*://*.search.yahoo.com/*"
      ],
      "js": [
        "browser-polyfill.js",
        "contentscript/sitetruthconfig.js",
        "contentscript/urlutillib.js",
        "contentscript/urlparserlib.js",
        "contentscript/urlutillib.js",
        "contentscript/specialdomains.js",
        "contentscript/searchrating.js",
        "contentscript/sitetruthclient.js",
        "contentscript/resultlink.js",
        "contentscript/domdump.js",
        "contentscript/balloonmgr.js",
        "contentscript/companyballoon.js",
        "contentscript/sitetruthcache.js",
        "contentscript/main.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "551f2920-3c19-11e1-b86c-0800200c9a66@jetpack"
    }
  }
}