Examine source code of WordJourney

{
  "manifest_version": 2,
  "name": "WordJourney",
  "version": "1.0",
  "description": "A browser extension that quizzes users on translating English daily activity words into Vietnamese, designed to improve language skills through interactive challenges.",
  "icons": {
    "48": "wordjourney_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "WordJourney"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9950135a-3ba1-4040-8018-563a2f334afd}"
    }
  }
}