Examine source code of SaveMate - Video Downloader

{
  "manifest_version": 3,
  "name": "__MSG_name__",
  "short_name": "__MSG_short_name__",
  "description": "__MSG_desc__",
  "version": "2.0.1",
  "default_locale": "en",
  "action": {
    "default_icon": "icons/icon_inactive.png",
    "default_popup": "src/popup/index.html",
    "default_title": "__MSG_action_title__"
  },
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "type": "module"
  },
  "icons": {
    "16": "icons/16.png",
    "19": "icons/19.png",
    "38": "icons/38.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "tabs",
    "webRequest",
    "declarativeNetRequest",
    "storage"
  ],
  "optional_permissions": [
    "downloads"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "content/content.js"
      ]
    },
    {
      "matches": [
        "*://savemate.io/video/stream/*",
        "*://savemate.io/video/cast/*"
      ],
      "run_at": "document_start",
      "js": [
        "content/content-bridge.js"
      ]
    }
  ],
  "options_ui": {
    "page": "src/options/index.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1244531-aad0-4aa7-b1c1-eb09c96909b9}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}