Examine source code of Fusion Proxy

{
  "manifest_version": 2,
  "name": "Fusion Proxy",
  "description": "Connect to Fusion Proxy residential, mobile, datacenter, and ISP proxies directly from your browser.",
  "version": "1.1.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@fusionproxy.net",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "proxy",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "browsingData",
    "tabs",
    "<all_urls>",
    "https://dashboard.fusionproxy.net/*"
  ],
  "background": {
    "scripts": [
      "js/background-firefox.js"
    ],
    "persistent": true
  },
  "web_accessible_resources": [
    "data/geo.json",
    "icons/*.svg"
  ]
}