Examine source code of VPN

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "description": "__MSG_extDesc__",
  "short_name": "Free VPN - 1VPN",
  "author": "Free VPN - 1VPN",
  "homepage_url": "https://1vpn.org",
  "version": "4.1.4",
  "default_locale": "en",
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "icon128.png"
  },
  "permissions": [
    "activeTab",
    "proxy",
    "storage",
    "webRequest",
    "privacy",
    "alarms",
    "management",
    "scripting",
    "webNavigation",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "1vpn@example.com",
      "strict_min_version": "114.0"
    }
  }
}