Examine source code of Searchonymous2

{
  "manifest_version": 2,
  "name": "Searchonymous2",
  "short_name": "Searchonymous2",
  "developer": {
    "name": "DaAwesomeP",
    "url": "https://github.com/DaAwesomeP"
  },
  "author": "DaAwesomeP",
  "homepage_url": "https://github.com/DaAwesomeP/Searchonymous2",
  "version": "2.0.0",
  "description": "Search anonymously on Google while staying logged in on services such as Youtube, Gmail, etc.",
  "icons": {
    "48": "icon.plain.min.svg"
  },
  "permissions": [
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "*://*.google.com/*",
    "*://*.google.ac/*",
    "*://*.google.ad/*",
    "*://*.google.ae/*",
    "*://*.google.com.af/*",
    "*://*.google.com.ag/*",
    "*://*.google.com.ai/*",
    "*://*.google.al/*",
    "*://*.google.am/*",
    "*://*.google.co.ao/*",
    "*://*.google.com.ar/*",
    "*://*.google.as/*",
    "*://*.google.at/*",
    "*://*.google.com.au/*",
    "*://*.google.az/*",
    "*://*.google.ba/*",
    "*://*.google.com.bd/*",
    "*://*.google.be/*",
    "*://*.google.bf/*",
    "*://*.google.bg/*",
    "*://*.google.com.bh/*",
    "*://*.google.bi/*",
    "*://*.google.bj/*",
    "*://*.google.com.bn/*",
    "*://*.google.com.bo/*",
    "*://*.google.com.br/*",
    "*://*.google.bs/*",
    "*://*.google.bt/*",
    "*://*.google.co.bw/*",
    "*://*.google.by/*",
    "*://*.google.com.bz/*",
    "*://*.google.ca/*",
    "*://*.google.com.kh/*",
    "*://*.google.cc/*",
    "*://*.google.cd/*",
    "*://*.google.cf/*",
    "*://*.google.cat/*",
    "*://*.google.cg/*",
    "*://*.google.ch/*",
    "*://*.google.ci/*",
    "*://*.google.co.ck/*",
    "*://*.google.cl/*",
    "*://*.google.cm/*",
    "*://*.google.cn/*",
    "*://*.google.com.co/*",
    "*://*.google.co/*",
    "*://*.google.co.cr/*",
    "*://*.google.com.cu/*",
    "*://*.google.cv/*",
    "*://*.google.com.cy/*",
    "*://*.google.cz/*",
    "*://*.google.de/*",
    "*://*.google.dj/*",
    "*://*.google.dk/*",
    "*://*.google.dm/*",
    "*://*.google.com.do/*",
    "*://*.google.dz/*",
    "*://*.google.com.ec/*",
    "*://*.google.ee/*",
    "*://*.google.com.eg/*",
    "*://*.google.es/*",
    "*://*.google.com.et/*",
    "*://*.google.eu/*",
    "*://*.google.fi/*",
    "*://*.google.com.fj/*",
    "*://*.google.fm/*",
    "*://*.google.fr/*",
    "*://*.google.ga/*",
    "*://*.google.ge/*",
    "*://*.google.gf/*",
    "*://*.google.gg/*",
    "*://*.google.com.gh/*",
    "*://*.google.com.gi/*",
    "*://*.google.gl/*",
    "*://*.google.gm/*",
    "*://*.google.gp/*",
    "*://*.google.gr/*",
    "*://*.google.com.gt/*",
    "*://*.google.gy/*",
    "*://*.google.com.hk/*",
    "*://*.google.hn/*",
    "*://*.google.hr/*",
    "*://*.google.ht/*",
    "*://*.google.hu/*",
    "*://*.google.co.id/*",
    "*://*.google.iq/*",
    "*://*.google.ie/*",
    "*://*.google.co.il/*",
    "*://*.google.im/*",
    "*://*.google.co.in/*",
    "*://*.google.is/*",
    "*://*.google.it/*",
    "*://*.google.je/*",
    "*://*.google.com.jm/*",
    "*://*.google.jo/*",
    "*://*.google.co.jp/*",
    "*://*.google.co.ke/*",
    "*://*.google.ki/*",
    "*://*.google.kg/*",
    "*://*.google.co.kr/*",
    "*://*.google.com.kw/*",
    "*://*.google.kz/*",
    "*://*.google.la/*",
    "*://*.google.com.lb/*",
    "*://*.google.li/*",
    "*://*.google.lk/*",
    "*://*.google.co.ls/*",
    "*://*.google.lt/*",
    "*://*.google.lu/*",
    "*://*.google.lv/*",
    "*://*.google.com.ly/*",
    "*://*.google.co.ma/*",
    "*://*.google.md/*",
    "*://*.google.me/*",
    "*://*.google.mg/*",
    "*://*.google.mk/*",
    "*://*.google.ml/*",
    "*://*.google.com.mm/*",
    "*://*.google.mn/*",
    "*://*.google.ms/*",
    "*://*.google.com.mt/*",
    "*://*.google.mu/*",
    "*://*.google.mv/*",
    "*://*.google.mw/*",
    "*://*.google.com.mx/*",
    "*://*.google.com.my/*",
    "*://*.google.co.mz/*",
    "*://*.google.com.na/*",
    "*://*.google.ne/*",
    "*://*.google.com.ng/*",
    "*://*.google.com.ni/*",
    "*://*.google.nl/*",
    "*://*.google.no/*",
    "*://*.google.com.np/*",
    "*://*.google.nr/*",
    "*://*.google.nu/*",
    "*://*.google.co.nz/*",
    "*://*.google.com.om/*",
    "*://*.google.com.pk/*",
    "*://*.google.com.pa/*",
    "*://*.google.com.pe/*",
    "*://*.google.com.ph/*",
    "*://*.google.pl/*",
    "*://*.google.com.pg/*",
    "*://*.google.pn/*",
    "*://*.google.com.pr/*",
    "*://*.google.ps/*",
    "*://*.google.pt/*",
    "*://*.google.com.py/*",
    "*://*.google.com.qa/*",
    "*://*.google.ro/*",
    "*://*.google.rs/*",
    "*://*.google.ru/*",
    "*://*.google.rw/*",
    "*://*.google.com.sa/*",
    "*://*.google.com.sb/*",
    "*://*.google.sc/*",
    "*://*.google.se/*",
    "*://*.google.com.sg/*",
    "*://*.google.sh/*",
    "*://*.google.si/*",
    "*://*.google.sk/*",
    "*://*.google.com.sl/*",
    "*://*.google.sn/*",
    "*://*.google.sm/*",
    "*://*.google.so/*",
    "*://*.google.st/*",
    "*://*.google.sr/*",
    "*://*.google.com.sv/*",
    "*://*.google.td/*",
    "*://*.google.tg/*",
    "*://*.google.co.th/*",
    "*://*.google.com.tj/*",
    "*://*.google.tk/*",
    "*://*.google.tl/*",
    "*://*.google.tm/*",
    "*://*.google.to/*",
    "*://*.google.tn/*",
    "*://*.google.com.tr/*",
    "*://*.google.tt/*",
    "*://*.google.com.tw/*",
    "*://*.google.co.tz/*",
    "*://*.google.com.ua/*",
    "*://*.google.co.ug/*",
    "*://*.google.co.uk/*",
    "*://*.google.us/*",
    "*://*.google.com.uy/*",
    "*://*.google.co.uz/*",
    "*://*.google.com.vc/*",
    "*://*.google.co.ve/*",
    "*://*.google.vg/*",
    "*://*.google.co.vi/*",
    "*://*.google.com.vn/*",
    "*://*.google.vu/*",
    "*://*.google.ws/*",
    "*://*.google.co.za/*",
    "*://*.google.co.zm/*",
    "*://*.google.co.zw/*"
  ],
  "background": {
    "scripts": [
      "lib/browser-polyfill.min.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{21ed6e5b-4b21-4175-b839-cf834c6733c4}"
    }
  }
}