Examine source code of iProVPN Proxy

{
  "name": "IProVPN for FireFox",
  "short_name": "IProVPN",
  "version": "2.0.5",
  "description": "IProVPN is built on the cutting-edge VPN technology to deliver unmatched security and performance.",
  "default_locale": "en",
  "browser_action": {
    "default_icon": "images/icon16.png",
    "default_popup": "index.html"
  },
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "background": {
    "scripts": [
      "js/jquery-3.4.1.min.js",
      "js/jquery.mousewheel.min.js",
      "js/jquery.mcustomscrollbar.concat.min.js",
      "js/axios.min.js",
      "js/store2.min.js",
      "js/purify.min.js",
      "js/custom.js"
    ],
    "persistent": true
  },
  "permissions": [
    "<all_urls>",
    "proxy",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "privacy",
    "idle",
    "tabs"
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "91.1.0",
      "id": "{b443270d-ff20-4467-85b3-242ab5366ec5}"
    }
  }
}