Examine source code of Spoofer StealthGuard

{
  "manifest_version": 2,
  "name": "Spoofer StealthGuard",
  "version": "1.0",
  "description": "Total stealth against fingerprinting, WebRTC leaks, proxy detection, and geolocation.",
  "permissions": [
    "proxy",
    "privacy",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "spoof.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "91.1.0",
      "id": "{bd1a6ddb-f5db-497e-ba48-fe8a86a4dab2}"
    }
  }
}