Examine source code of Media Grabber

{
  "manifest_version": 3,
  "name": "Media Grabber",
  "version": "1.0.0",
  "default_locale": "en",
  "description": "__MSG_extDescription__",
  "permissions": [
    "webRequest",
    "declarativeNetRequest",
    "downloads",
    "storage",
    "tabs",
    "scripting",
    "notifications",
    "contextMenus",
    "unlimitedStorage"
  ],
  "optional_permissions": [
    "downloads.open"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "background": {
    "scripts": [
      "src/background.js",
      "src/offscreen/offscreen.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Media Grabber",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "src/injected/network-observer.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "src/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/icon16.png",
        "icons/icon32.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "media-grabber@ryonixlabs.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    }
  }
}