Examine source code of Google Maps Button

{
  "manifest_version": 3,
  "name": "Google Maps Button",
  "description": "A browser extension that re-adds the Google Maps link to searches.",
  "version": "0.2.3",
  "content_scripts": [
    {
      "matches": [
        "*://www.google.com/search*",
        "*://www.google.ac/search*",
        "*://www.google.ad/search*",
        "*://www.google.ae/search*",
        "*://www.google.af/search*",
        "*://www.google.ag/search*",
        "*://www.google.ai/search*",
        "*://www.google.al/search*",
        "*://www.google.am/search*",
        "*://www.google.ao/search*",
        "*://www.google.aq/search*",
        "*://www.google.ar/search*",
        "*://www.google.as/search*",
        "*://www.google.at/search*",
        "*://www.google.au/search*",
        "*://www.google.aw/search*",
        "*://www.google.ax/search*",
        "*://www.google.az/search*",
        "*://www.google.ba/search*",
        "*://www.google.bb/search*",
        "*://www.google.bd/search*",
        "*://www.google.be/search*",
        "*://www.google.bf/search*",
        "*://www.google.bg/search*",
        "*://www.google.bh/search*",
        "*://www.google.bi/search*",
        "*://www.google.bj/search*",
        "*://www.google.bm/search*",
        "*://www.google.bn/search*",
        "*://www.google.bo/search*",
        "*://www.google.bq/search*",
        "*://www.google.br/search*",
        "*://www.google.bs/search*",
        "*://www.google.bt/search*",
        "*://www.google.bv/search*",
        "*://www.google.bw/search*",
        "*://www.google.by/search*",
        "*://www.google.bz/search*",
        "*://www.google.ca/search*",
        "*://www.google.cc/search*",
        "*://www.google.cd/search*",
        "*://www.google.cf/search*",
        "*://www.google.cg/search*",
        "*://www.google.ch/search*",
        "*://www.google.ci/search*",
        "*://www.google.ck/search*",
        "*://www.google.cl/search*",
        "*://www.google.cm/search*",
        "*://www.google.cn/search*",
        "*://www.google.co/search*",
        "*://www.google.cr/search*",
        "*://www.google.cu/search*",
        "*://www.google.cv/search*",
        "*://www.google.cw/search*",
        "*://www.google.cx/search*",
        "*://www.google.cy/search*",
        "*://www.google.cz/search*",
        "*://www.google.de/search*",
        "*://www.google.dj/search*",
        "*://www.google.dk/search*",
        "*://www.google.dm/search*",
        "*://www.google.do/search*",
        "*://www.google.dz/search*",
        "*://www.google.ec/search*",
        "*://www.google.ee/search*",
        "*://www.google.eg/search*",
        "*://www.google.eh/search*",
        "*://www.google.er/search*",
        "*://www.google.es/search*",
        "*://www.google.et/search*",
        "*://www.google.fi/search*",
        "*://www.google.fj/search*",
        "*://www.google.fk/search*",
        "*://www.google.fm/search*",
        "*://www.google.fo/search*",
        "*://www.google.fr/search*",
        "*://www.google.ga/search*",
        "*://www.google.gb/search*",
        "*://www.google.gd/search*",
        "*://www.google.ge/search*",
        "*://www.google.gf/search*",
        "*://www.google.gg/search*",
        "*://www.google.gh/search*",
        "*://www.google.gi/search*",
        "*://www.google.gl/search*",
        "*://www.google.gm/search*",
        "*://www.google.gn/search*",
        "*://www.google.gp/search*",
        "*://www.google.gq/search*",
        "*://www.google.gr/search*",
        "*://www.google.gs/search*",
        "*://www.google.gt/search*",
        "*://www.google.gu/search*",
        "*://www.google.gw/search*",
        "*://www.google.gy/search*",
        "*://www.google.hk/search*",
        "*://www.google.hm/search*",
        "*://www.google.hn/search*",
        "*://www.google.hr/search*",
        "*://www.google.ht/search*",
        "*://www.google.hu/search*",
        "*://www.google.id/search*",
        "*://www.google.ie/search*",
        "*://www.google.il/search*",
        "*://www.google.im/search*",
        "*://www.google.in/search*",
        "*://www.google.io/search*",
        "*://www.google.iq/search*",
        "*://www.google.ir/search*",
        "*://www.google.is/search*",
        "*://www.google.it/search*",
        "*://www.google.je/search*",
        "*://www.google.jm/search*",
        "*://www.google.jo/search*",
        "*://www.google.jp/search*",
        "*://www.google.ke/search*",
        "*://www.google.kg/search*",
        "*://www.google.kh/search*",
        "*://www.google.ki/search*",
        "*://www.google.km/search*",
        "*://www.google.kn/search*",
        "*://www.google.kp/search*",
        "*://www.google.kr/search*",
        "*://www.google.kw/search*",
        "*://www.google.ky/search*",
        "*://www.google.kz/search*",
        "*://www.google.la/search*",
        "*://www.google.lb/search*",
        "*://www.google.lc/search*",
        "*://www.google.li/search*",
        "*://www.google.lk/search*",
        "*://www.google.lr/search*",
        "*://www.google.ls/search*",
        "*://www.google.lt/search*",
        "*://www.google.lu/search*",
        "*://www.google.lv/search*",
        "*://www.google.ly/search*",
        "*://www.google.ma/search*",
        "*://www.google.mc/search*",
        "*://www.google.md/search*",
        "*://www.google.me/search*",
        "*://www.google.mg/search*",
        "*://www.google.mh/search*",
        "*://www.google.mk/search*",
        "*://www.google.ml/search*",
        "*://www.google.mm/search*",
        "*://www.google.mn/search*",
        "*://www.google.mo/search*",
        "*://www.google.mp/search*",
        "*://www.google.mq/search*",
        "*://www.google.mr/search*",
        "*://www.google.ms/search*",
        "*://www.google.mt/search*",
        "*://www.google.mu/search*",
        "*://www.google.mv/search*",
        "*://www.google.mw/search*",
        "*://www.google.mx/search*",
        "*://www.google.my/search*",
        "*://www.google.mz/search*",
        "*://www.google.na/search*",
        "*://www.google.nc/search*",
        "*://www.google.ne/search*",
        "*://www.google.nf/search*",
        "*://www.google.ng/search*",
        "*://www.google.ni/search*",
        "*://www.google.nl/search*",
        "*://www.google.no/search*",
        "*://www.google.np/search*",
        "*://www.google.nr/search*",
        "*://www.google.nu/search*",
        "*://www.google.nz/search*",
        "*://www.google.om/search*",
        "*://www.google.pa/search*",
        "*://www.google.pe/search*",
        "*://www.google.pf/search*",
        "*://www.google.pg/search*",
        "*://www.google.ph/search*",
        "*://www.google.pk/search*",
        "*://www.google.pl/search*",
        "*://www.google.pm/search*",
        "*://www.google.pn/search*",
        "*://www.google.pr/search*",
        "*://www.google.ps/search*",
        "*://www.google.pt/search*",
        "*://www.google.pw/search*",
        "*://www.google.py/search*",
        "*://www.google.qa/search*",
        "*://www.google.re/search*",
        "*://www.google.ro/search*",
        "*://www.google.rs/search*",
        "*://www.google.ru/search*",
        "*://www.google.rw/search*",
        "*://www.google.sa/search*",
        "*://www.google.sb/search*",
        "*://www.google.sc/search*",
        "*://www.google.sd/search*",
        "*://www.google.se/search*",
        "*://www.google.sg/search*",
        "*://www.google.sh/search*",
        "*://www.google.si/search*",
        "*://www.google.sj/search*",
        "*://www.google.sk/search*",
        "*://www.google.sl/search*",
        "*://www.google.sm/search*",
        "*://www.google.sn/search*",
        "*://www.google.so/search*",
        "*://www.google.sr/search*",
        "*://www.google.ss/search*",
        "*://www.google.st/search*",
        "*://www.google.sv/search*",
        "*://www.google.sx/search*",
        "*://www.google.sy/search*",
        "*://www.google.sz/search*",
        "*://www.google.tc/search*",
        "*://www.google.td/search*",
        "*://www.google.tf/search*",
        "*://www.google.tg/search*",
        "*://www.google.th/search*",
        "*://www.google.tj/search*",
        "*://www.google.tk/search*",
        "*://www.google.tl/search*",
        "*://www.google.tm/search*",
        "*://www.google.tn/search*",
        "*://www.google.to/search*",
        "*://www.google.tp/search*",
        "*://www.google.tr/search*",
        "*://www.google.tt/search*",
        "*://www.google.tv/search*",
        "*://www.google.tw/search*",
        "*://www.google.tz/search*",
        "*://www.google.ua/search*",
        "*://www.google.ug/search*",
        "*://www.google.uk/search*",
        "*://www.google.us/search*",
        "*://www.google.uy/search*",
        "*://www.google.uz/search*",
        "*://www.google.va/search*",
        "*://www.google.vc/search*",
        "*://www.google.ve/search*",
        "*://www.google.vg/search*",
        "*://www.google.vi/search*",
        "*://www.google.vn/search*",
        "*://www.google.vu/search*",
        "*://www.google.wf/search*",
        "*://www.google.ws/search*",
        "*://www.google.xn--fiqs8s/search*",
        "*://www.google.xn--fiqz9s/search*",
        "*://www.google.ye/search*",
        "*://www.google.yt/search*",
        "*://www.google.za/search*",
        "*://www.google.zm/search*",
        "*://www.google.zw/search*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "action": {
    "default_popup": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "google-maps-button@aminoffz.io",
      "strict_min_version": "58.0"
    }
  },
  "icons": {
    "16": "assets/images/icon16.png",
    "32": "assets/images/icon32.png",
    "48": "assets/images/icon48.png",
    "128": "assets/images/icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/images/icon16.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}