Examine source code of Word Explorer

{
  "manifest_version": 2,
  "name": "Word Explorer",
  "version": "1.0",
  "description": "A fun and interactive quiz game to practice translating Vietnamese words into English, designed to enhance vocabulary skills.",
  "icons": {
    "48": "word_explorer_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Word Explorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1ca1c85-5ace-4648-b5d1-b48dab57ab9b}"
    }
  }
}