Examine source code of Pix Companion

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.3.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "author": "Pix",
  "browser_specific_settings": {
    "gecko": {
      "id": "companion@pix.fr"
    }
  },
  "default_locale": "en",
  "permissions": [
    "alarms",
    "storage",
    "tabs",
    "webNavigation"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.bing.com/*"
      ],
      "js": [
        "content-scripts/bing.js"
      ]
    },
    {
      "matches": [
        "https://companion.pix.digital/debug.html",
        "https://pix-companion-dev.osc-fr1.scalingo.io/debug.html"
      ],
      "js": [
        "content-scripts/debug.js"
      ]
    },
    {
      "matches": [
        "https://*.google.ad/*",
        "https://*.google.ae/*",
        "https://*.google.al/*",
        "https://*.google.am/*",
        "https://*.google.as/*",
        "https://*.google.at/*",
        "https://*.google.az/*",
        "https://*.google.ba/*",
        "https://*.google.be/*",
        "https://*.google.bf/*",
        "https://*.google.bg/*",
        "https://*.google.bi/*",
        "https://*.google.bj/*",
        "https://*.google.bs/*",
        "https://*.google.bt/*",
        "https://*.google.by/*",
        "https://*.google.ca/*",
        "https://*.google.cat/*",
        "https://*.google.cd/*",
        "https://*.google.cf/*",
        "https://*.google.cg/*",
        "https://*.google.ch/*",
        "https://*.google.ci/*",
        "https://*.google.cl/*",
        "https://*.google.cm/*",
        "https://*.google.cn/*",
        "https://*.google.co.ao/*",
        "https://*.google.co.bw/*",
        "https://*.google.co.ck/*",
        "https://*.google.co.cr/*",
        "https://*.google.co.id/*",
        "https://*.google.co.il/*",
        "https://*.google.co.in/*",
        "https://*.google.co.jp/*",
        "https://*.google.co.ke/*",
        "https://*.google.co.kr/*",
        "https://*.google.co.ls/*",
        "https://*.google.co.ma/*",
        "https://*.google.co.mz/*",
        "https://*.google.co.nz/*",
        "https://*.google.co.th/*",
        "https://*.google.co.tz/*",
        "https://*.google.co.ug/*",
        "https://*.google.co.uk/*",
        "https://*.google.co.uz/*",
        "https://*.google.co.ve/*",
        "https://*.google.co.vi/*",
        "https://*.google.co.za/*",
        "https://*.google.co.zm/*",
        "https://*.google.co.zw/*",
        "https://*.google.com.af/*",
        "https://*.google.com.ag/*",
        "https://*.google.com.ar/*",
        "https://*.google.com.au/*",
        "https://*.google.com.bd/*",
        "https://*.google.com.bh/*",
        "https://*.google.com.bn/*",
        "https://*.google.com.bo/*",
        "https://*.google.com.br/*",
        "https://*.google.com.bz/*",
        "https://*.google.com.co/*",
        "https://*.google.com.cu/*",
        "https://*.google.com.cy/*",
        "https://*.google.com.do/*",
        "https://*.google.com.ec/*",
        "https://*.google.com.eg/*",
        "https://*.google.com.et/*",
        "https://*.google.com.fj/*",
        "https://*.google.com.gh/*",
        "https://*.google.com.gi/*",
        "https://*.google.com.gt/*",
        "https://*.google.com.hk/*",
        "https://*.google.com.jm/*",
        "https://*.google.com.kh/*",
        "https://*.google.com.kw/*",
        "https://*.google.com.lb/*",
        "https://*.google.com.ly/*",
        "https://*.google.com.mm/*",
        "https://*.google.com.mt/*",
        "https://*.google.com.mx/*",
        "https://*.google.com.my/*",
        "https://*.google.com.na/*",
        "https://*.google.com.ng/*",
        "https://*.google.com.ni/*",
        "https://*.google.com.np/*",
        "https://*.google.com.om/*",
        "https://*.google.com.pa/*",
        "https://*.google.com.pe/*",
        "https://*.google.com.pg/*",
        "https://*.google.com.ph/*",
        "https://*.google.com.pk/*",
        "https://*.google.com.pr/*",
        "https://*.google.com.py/*",
        "https://*.google.com.qa/*",
        "https://*.google.com.sa/*",
        "https://*.google.com.sb/*",
        "https://*.google.com.sg/*",
        "https://*.google.com.sl/*",
        "https://*.google.com.sv/*",
        "https://*.google.com.tj/*",
        "https://*.google.com.tr/*",
        "https://*.google.com.tw/*",
        "https://*.google.com.ua/*",
        "https://*.google.com.uy/*",
        "https://*.google.com.vc/*",
        "https://*.google.com.vn/*",
        "https://*.google.com/*",
        "https://*.google.cv/*",
        "https://*.google.cz/*",
        "https://*.google.de/*",
        "https://*.google.dj/*",
        "https://*.google.dk/*",
        "https://*.google.dm/*",
        "https://*.google.dz/*",
        "https://*.google.ee/*",
        "https://*.google.es/*",
        "https://*.google.fi/*",
        "https://*.google.fm/*",
        "https://*.google.fr/*",
        "https://*.google.ga/*",
        "https://*.google.ge/*",
        "https://*.google.gg/*",
        "https://*.google.gl/*",
        "https://*.google.gm/*",
        "https://*.google.gr/*",
        "https://*.google.gy/*",
        "https://*.google.hn/*",
        "https://*.google.hr/*",
        "https://*.google.ht/*",
        "https://*.google.hu/*",
        "https://*.google.ie/*",
        "https://*.google.im/*",
        "https://*.google.iq/*",
        "https://*.google.is/*",
        "https://*.google.it/*",
        "https://*.google.je/*",
        "https://*.google.jo/*",
        "https://*.google.kg/*",
        "https://*.google.ki/*",
        "https://*.google.kz/*",
        "https://*.google.la/*",
        "https://*.google.li/*",
        "https://*.google.lk/*",
        "https://*.google.lt/*",
        "https://*.google.lu/*",
        "https://*.google.lv/*",
        "https://*.google.md/*",
        "https://*.google.me/*",
        "https://*.google.mg/*",
        "https://*.google.mk/*",
        "https://*.google.ml/*",
        "https://*.google.mn/*",
        "https://*.google.mu/*",
        "https://*.google.mv/*",
        "https://*.google.mw/*",
        "https://*.google.ne/*",
        "https://*.google.nl/*",
        "https://*.google.no/*",
        "https://*.google.nr/*",
        "https://*.google.nu/*",
        "https://*.google.pl/*",
        "https://*.google.pn/*",
        "https://*.google.ps/*",
        "https://*.google.pt/*",
        "https://*.google.ro/*",
        "https://*.google.rs/*",
        "https://*.google.ru/*",
        "https://*.google.rw/*",
        "https://*.google.sc/*",
        "https://*.google.se/*",
        "https://*.google.sh/*",
        "https://*.google.si/*",
        "https://*.google.sk/*",
        "https://*.google.sm/*",
        "https://*.google.sn/*",
        "https://*.google.so/*",
        "https://*.google.sr/*",
        "https://*.google.st/*",
        "https://*.google.td/*",
        "https://*.google.tg/*",
        "https://*.google.tl/*",
        "https://*.google.tm/*",
        "https://*.google.tn/*",
        "https://*.google.to/*",
        "https://*.google.tt/*",
        "https://*.google.vu/*",
        "https://*.google.ws/*"
      ],
      "js": [
        "content-scripts/google.js"
      ]
    },
    {
      "matches": [
        "https://*.review.pix.fr/*",
        "https://*.review.pix.org/*",
        "https://app.integration.pix.fr/*",
        "https://app.integration.pix.org/*",
        "https://app.pix.fr/*",
        "https://app.pix.org/*",
        "https://app.recette.pix.fr/*",
        "https://app.recette.pix.org/*"
      ],
      "js": [
        "content-scripts/pix.js"
      ]
    },
    {
      "matches": [
        "https://*.qwant.com/*",
        "https://*.qwantjunior.com/*"
      ],
      "js": [
        "content-scripts/qwant.js"
      ]
    }
  ],
  "browser_action": {}
}