Examine source code of ArrowKeys For Search

{
  "manifest_version": 2,
  "version": "2.2.2",
  "name": "ArrowKeys For Search",
  "description": "Navigate conveniently with arrow keys through search results of various search engines. Pages like Google or Ecosia are supported.",
  "content_scripts": [
    {
      "matches": [
        "http://*.google.com/search*",
        "https://*.google.com/search*",
        "http://*.google.adam/search*",
        "https://*.google.adam/search*",
        "http://*.google.ae/search*",
        "https://*.google.ae/search*",
        "http://*.google.com.af/search*",
        "https://*.google.com.af/search*",
        "http://*.google.com.ag/search*",
        "https://*.google.com.ag/search*",
        "http://*.google.al/search*",
        "https://*.google.al/search*",
        "http://*.google.am/search*",
        "https://*.google.am/search*",
        "http://*.google.co.ao/search*",
        "https://*.google.co.ao/search*",
        "http://*.google.com.ar/search*",
        "https://*.google.com.ar/search*",
        "http://*.google.as/search*",
        "https://*.google.as/search*",
        "http://*.google.at/search*",
        "https://*.google.at/search*",
        "http://*.google.com.au/search*",
        "https://*.google.com.au/search*",
        "http://*.google.az/search*",
        "https://*.google.az/search*",
        "http://*.google.ba/search*",
        "https://*.google.ba/search*",
        "http://*.google.com.bd/search*",
        "https://*.google.com.bd/search*",
        "http://*.google.be/search*",
        "https://*.google.be/search*",
        "http://*.google.bf/search*",
        "https://*.google.bf/search*",
        "http://*.google.bg/search*",
        "https://*.google.bg/search*",
        "http://*.google.com.bh/search*",
        "https://*.google.com.bh/search*",
        "http://*.google.bi/search*",
        "https://*.google.bi/search*",
        "http://*.google.bj/search*",
        "https://*.google.bj/search*",
        "http://*.google.com.bn/search*",
        "https://*.google.com.bn/search*",
        "http://*.google.com.bo/search*",
        "https://*.google.com.bo/search*",
        "http://*.google.com.br/search*",
        "https://*.google.com.br/search*",
        "http://*.google.bs/search*",
        "https://*.google.bs/search*",
        "http://*.google.bt/search*",
        "https://*.google.bt/search*",
        "http://*.google.co.bw/search*",
        "https://*.google.co.bw/search*",
        "http://*.google.by/search*",
        "https://*.google.by/search*",
        "http://*.google.com.bz/search*",
        "https://*.google.com.bz/search*",
        "http://*.google.ca/search*",
        "https://*.google.ca/search*",
        "http://*.google.cd/search*",
        "https://*.google.cd/search*",
        "http://*.google.cf/search*",
        "https://*.google.cf/search*",
        "http://*.google.cg/search*",
        "https://*.google.cg/search*",
        "http://*.google.ch/search*",
        "https://*.google.ch/search*",
        "http://*.google.ci/search*",
        "https://*.google.ci/search*",
        "http://*.google.co.ck/search*",
        "https://*.google.co.ck/search*",
        "http://*.google.cl/search*",
        "https://*.google.cl/search*",
        "http://*.google.cm/search*",
        "https://*.google.cm/search*",
        "http://*.google.cn/search*",
        "https://*.google.cn/search*",
        "http://*.google.com.co/search*",
        "https://*.google.com.co/search*",
        "http://*.google.co.cr/search*",
        "https://*.google.co.cr/search*",
        "http://*.google.com.cu/search*",
        "https://*.google.com.cu/search*",
        "http://*.google.cv/search*",
        "https://*.google.cv/search*",
        "http://*.google.com.cy/search*",
        "https://*.google.com.cy/search*",
        "http://*.google.cz/search*",
        "https://*.google.cz/search*",
        "http://*.google.de/search*",
        "https://*.google.de/search*",
        "http://*.google.dj/search*",
        "https://*.google.dj/search*",
        "http://*.google.dk/search*",
        "https://*.google.dk/search*",
        "http://*.google.dm/search*",
        "https://*.google.dm/search*",
        "http://*.google.com.do/search*",
        "https://*.google.com.do/search*",
        "http://*.google.dz/search*",
        "https://*.google.dz/search*",
        "http://*.google.com.ec/search*",
        "https://*.google.com.ec/search*",
        "http://*.google.ee/search*",
        "https://*.google.ee/search*",
        "http://*.google.com.eg/search*",
        "https://*.google.com.eg/search*",
        "http://*.google.es/search*",
        "https://*.google.es/search*",
        "http://*.google.com.et/search*",
        "https://*.google.com.et/search*",
        "http://*.google.fi/search*",
        "https://*.google.fi/search*",
        "http://*.google.com.fj/search*",
        "https://*.google.com.fj/search*",
        "http://*.google.fm/search*",
        "https://*.google.fm/search*",
        "http://*.google.fr/search*",
        "https://*.google.fr/search*",
        "http://*.google.ga/search*",
        "https://*.google.ga/search*",
        "http://*.google.ge/search*",
        "https://*.google.ge/search*",
        "http://*.google.gg/search*",
        "https://*.google.gg/search*",
        "http://*.google.com.gh/search*",
        "https://*.google.com.gh/search*",
        "http://*.google.com.gi/search*",
        "https://*.google.com.gi/search*",
        "http://*.google.gl/search*",
        "https://*.google.gl/search*",
        "http://*.google.gm/search*",
        "https://*.google.gm/search*",
        "http://*.google.gr/search*",
        "https://*.google.gr/search*",
        "http://*.google.com.gt/search*",
        "https://*.google.com.gt/search*",
        "http://*.google.gy/search*",
        "https://*.google.gy/search*",
        "http://*.google.com.hk/search*",
        "https://*.google.com.hk/search*",
        "http://*.google.hn/search*",
        "https://*.google.hn/search*",
        "http://*.google.hr/search*",
        "https://*.google.hr/search*",
        "http://*.google.ht/search*",
        "https://*.google.ht/search*",
        "http://*.google.hu/search*",
        "https://*.google.hu/search*",
        "http://*.google.co.id/search*",
        "https://*.google.co.id/search*",
        "http://*.google.ie/search*",
        "https://*.google.ie/search*",
        "http://*.google.co.il/search*",
        "https://*.google.co.il/search*",
        "http://*.google.im/search*",
        "https://*.google.im/search*",
        "http://*.google.co.in/search*",
        "https://*.google.co.in/search*",
        "http://*.google.iq/search*",
        "https://*.google.iq/search*",
        "http://*.google.is/search*",
        "https://*.google.is/search*",
        "http://*.google.it/search*",
        "https://*.google.it/search*",
        "http://*.google.je/search*",
        "https://*.google.je/search*",
        "http://*.google.com.jm/search*",
        "https://*.google.com.jm/search*",
        "http://*.google.jo/search*",
        "https://*.google.jo/search*",
        "http://*.google.co.jp/search*",
        "https://*.google.co.jp/search*",
        "http://*.google.co.ke/search*",
        "https://*.google.co.ke/search*",
        "http://*.google.com.kh/search*",
        "https://*.google.com.kh/search*",
        "http://*.google.ki/search*",
        "https://*.google.ki/search*",
        "http://*.google.kg/search*",
        "https://*.google.kg/search*",
        "http://*.google.co.kr/search*",
        "https://*.google.co.kr/search*",
        "http://*.google.com.kw/search*",
        "https://*.google.com.kw/search*",
        "http://*.google.kz/search*",
        "https://*.google.kz/search*",
        "http://*.google.la/search*",
        "https://*.google.la/search*",
        "http://*.google.com.lb/search*",
        "https://*.google.com.lb/search*",
        "http://*.google.li/search*",
        "https://*.google.li/search*",
        "http://*.google.lk/search*",
        "https://*.google.lk/search*",
        "http://*.google.co.ls/search*",
        "https://*.google.co.ls/search*",
        "http://*.google.lt/search*",
        "https://*.google.lt/search*",
        "http://*.google.lu/search*",
        "https://*.google.lu/search*",
        "http://*.google.lv/search*",
        "https://*.google.lv/search*",
        "http://*.google.com.ly/search*",
        "https://*.google.com.ly/search*",
        "http://*.google.co.ma/search*",
        "https://*.google.co.ma/search*",
        "http://*.google.md/search*",
        "https://*.google.md/search*",
        "http://*.google.me/search*",
        "https://*.google.me/search*",
        "http://*.google.mg/search*",
        "https://*.google.mg/search*",
        "http://*.google.mk/search*",
        "https://*.google.mk/search*",
        "http://*.google.ml/search*",
        "https://*.google.ml/search*",
        "http://*.google.com.mm/search*",
        "https://*.google.com.mm/search*",
        "http://*.google.mn/search*",
        "https://*.google.mn/search*",
        "http://*.google.com.mt/search*",
        "https://*.google.com.mt/search*",
        "http://*.google.mu/search*",
        "https://*.google.mu/search*",
        "http://*.google.mv/search*",
        "https://*.google.mv/search*",
        "http://*.google.mw/search*",
        "https://*.google.mw/search*",
        "http://*.google.com.mx/search*",
        "https://*.google.com.mx/search*",
        "http://*.google.com.my/search*",
        "https://*.google.com.my/search*",
        "http://*.google.co.mz/search*",
        "https://*.google.co.mz/search*",
        "http://*.google.com.na/search*",
        "https://*.google.com.na/search*",
        "http://*.google.com.ng/search*",
        "https://*.google.com.ng/search*",
        "http://*.google.com.ni/search*",
        "https://*.google.com.ni/search*",
        "http://*.google.ne/search*",
        "https://*.google.ne/search*",
        "http://*.google.nl/search*",
        "https://*.google.nl/search*",
        "http://*.google.no/search*",
        "https://*.google.no/search*",
        "http://*.google.com.np/search*",
        "https://*.google.com.np/search*",
        "http://*.google.nr/search*",
        "https://*.google.nr/search*",
        "http://*.google.nu/search*",
        "https://*.google.nu/search*",
        "http://*.google.co.nz/search*",
        "https://*.google.co.nz/search*",
        "http://*.google.com.om/search*",
        "https://*.google.com.om/search*",
        "http://*.google.com.pa/search*",
        "https://*.google.com.pa/search*",
        "http://*.google.com.pe/search*",
        "https://*.google.com.pe/search*",
        "http://*.google.com.pg/search*",
        "https://*.google.com.pg/search*",
        "http://*.google.com.ph/search*",
        "https://*.google.com.ph/search*",
        "http://*.google.com.pk/search*",
        "https://*.google.com.pk/search*",
        "http://*.google.pl/search*",
        "https://*.google.pl/search*",
        "http://*.google.pn/search*",
        "https://*.google.pn/search*",
        "http://*.google.com.pr/search*",
        "https://*.google.com.pr/search*",
        "http://*.google.ps/search*",
        "https://*.google.ps/search*",
        "http://*.google.pt/search*",
        "https://*.google.pt/search*",
        "http://*.google.com.py/search*",
        "https://*.google.com.py/search*",
        "http://*.google.com.qa/search*",
        "https://*.google.com.qa/search*",
        "http://*.google.ro/search*",
        "https://*.google.ro/search*",
        "http://*.google.ru/search*",
        "https://*.google.ru/search*",
        "http://*.google.rw/search*",
        "https://*.google.rw/search*",
        "http://*.google.com.sa/search*",
        "https://*.google.com.sa/search*",
        "http://*.google.com.sb/search*",
        "https://*.google.com.sb/search*",
        "http://*.google.sc/search*",
        "https://*.google.sc/search*",
        "http://*.google.se/search*",
        "https://*.google.se/search*",
        "http://*.google.com.sg/search*",
        "https://*.google.com.sg/search*",
        "http://*.google.sh/search*",
        "https://*.google.sh/search*",
        "http://*.google.si/search*",
        "https://*.google.si/search*",
        "http://*.google.sk/search*",
        "https://*.google.sk/search*",
        "http://*.google.com.sl/search*",
        "https://*.google.com.sl/search*",
        "http://*.google.sn/search*",
        "https://*.google.sn/search*",
        "http://*.google.so/search*",
        "https://*.google.so/search*",
        "http://*.google.sm/search*",
        "https://*.google.sm/search*",
        "http://*.google.sr/search*",
        "https://*.google.sr/search*",
        "http://*.google.st/search*",
        "https://*.google.st/search*",
        "http://*.google.com.sv/search*",
        "https://*.google.com.sv/search*",
        "http://*.google.td/search*",
        "https://*.google.td/search*",
        "http://*.google.tg/search*",
        "https://*.google.tg/search*",
        "http://*.google.co.th/search*",
        "https://*.google.co.th/search*",
        "http://*.google.com.tj/search*",
        "https://*.google.com.tj/search*",
        "http://*.google.tl/search*",
        "https://*.google.tl/search*",
        "http://*.google.tm/search*",
        "https://*.google.tm/search*",
        "http://*.google.tn/search*",
        "https://*.google.tn/search*",
        "http://*.google.to/search*",
        "https://*.google.to/search*",
        "http://*.google.com.tr/search*",
        "https://*.google.com.tr/search*",
        "http://*.google.tt/search*",
        "https://*.google.tt/search*",
        "http://*.google.com.tw/search*",
        "https://*.google.com.tw/search*",
        "http://*.google.co.tz/search*",
        "https://*.google.co.tz/search*",
        "http://*.google.com.ua/search*",
        "https://*.google.com.ua/search*",
        "http://*.google.co.ug/search*",
        "https://*.google.co.ug/search*",
        "http://*.google.co.uk/search*",
        "https://*.google.co.uk/search*",
        "http://*.google.com.uy/search*",
        "https://*.google.com.uy/search*",
        "http://*.google.co.uz/search*",
        "https://*.google.co.uz/search*",
        "http://*.google.com.vc/search*",
        "https://*.google.com.vc/search*",
        "http://*.google.co.ve/search*",
        "https://*.google.co.ve/search*",
        "http://*.google.co.vi/search*",
        "https://*.google.co.vi/search*",
        "http://*.google.com.vn/search*",
        "https://*.google.com.vn/search*",
        "http://*.google.vu/search*",
        "https://*.google.vu/search*",
        "http://*.google.ws/search*",
        "https://*.google.ws/search*",
        "http://*.google.rs/search*",
        "https://*.google.rs/search*",
        "http://*.google.co.za/search*",
        "https://*.google.co.za/search*",
        "http://*.google.co.zm/search*",
        "https://*.google.co.zm/search*",
        "http://*.google.co.zw/search*",
        "https://*.google.co.zw/search*",
        "http://*.google.cat/search*",
        "https://*.google.cat/search*"
      ],
      "js": [
        "./modules/google.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "http://*.startpage.com/sp/search*",
        "https://*.startpage.com/sp/search*",
        "http://*.startpage.com/do/search*",
        "https://*.startpage.com/do/search*"
      ],
      "js": [
        "./modules/startpage.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "http://www.qwant.com/*",
        "https://www.qwant.com/*"
      ],
      "js": [
        "./modules/qwant.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "http://www.ecosia.org/search*",
        "https://www.ecosia.org/search*"
      ],
      "js": [
        "./modules/ecosia.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "http://duckduckgo.com/*q=*",
        "https://duckduckgo.com/*q=*"
      ],
      "js": [
        "./modules/duckduckgo.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "http://yandex.com/search/*",
        "https://yandex.com/search/*"
      ],
      "js": [
        "./modules/yandex.js",
        "storage.js",
        "main.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "./icons/16px.png",
    "32": "./icons/32px.png",
    "48": "./icons/48px.png",
    "128": "./icons/128px.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a381d1be-04c1-4fcd-8827-84ec14f5db29}"
    }
  }
}