Examine source code of Proxy & VPN Manager

{
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "version": "1.0.5",
  "default_locale": "en",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "@proxy-vpn-addon",
      "strict_min_version": "91.1.0"
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_extension_name__"
  },
  "icons": {
    "16": "assets/logo128.png",
    "32": "assets/logo128.png",
    "64": "assets/logo128.png",
    "128": "assets/logo128.png"
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.bundle.js"
      ]
    }
  ],
  "permissions": [
    "proxy",
    "storage"
  ]
}