Examine source code of History Quiz

{
  "manifest_version": 2,
  "name": "History Quiz",
  "version": "1.0",
  "description": "Test your knowledge of Vietnamese historical figures by matching them to their notable contributions. A fun and educational way to explore Vietnam's rich history!",
  "icons": {
    "48": "history_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "History Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cdf86439-187f-46d0-9aac-14549d543fdb}"
    }
  }
}