Examine source code of Video Stream Enhancer

{
  "manifest_version": 2,
  "name": "Video Stream Enhancer",
  "version": "1.0",
  "description": "Оптимизация буферизации и снижение нагрузки при воспроизведении видео",
  "permissions": [
    "<all_urls>",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "engine.js"
  ],
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "video-stream-enhancer@swill.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}