Examine source code of MAC Lookup Tool Pro

{
  "manifest_version": 3,
  "name": "MAC Lookup Tool Pro",
  "version": "2.1.0",
  "description": "Outil pour la recherche et la génération d'adresses MAC avec support thème sombre",
  "browser_specific_settings": {
    "gecko": {
      "id": "mac-lookup-tool@neovillemin.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "contextMenus",
    "storage",
    "scripting",
    "activeTab",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "MAC Lookup Tool Pro"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "assets/icon16.png",
    "32": "assets/icon32.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png",
    "256": "assets/icon256.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "data.json"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}