Examine source code of Vocab Explorer

{
  "manifest_version": 2,
  "name": "Vocab Explorer",
  "version": "1.0",
  "description": "A fun browser extension that helps you learn English vocabulary through interactive quizzes. Translate Vietnamese words related to nature, environment, and daily life. Perfect for Vietnamese learners who want to expand their English in an engaging way.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Vocab Explorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{48ee95cf-e297-4917-8901-3e928ec413af}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}