Examine source code of VietProverb Puzzle

{
  "manifest_version": 2,
  "name": "VietProverb Puzzle",
  "version": "1.0",
  "description": "A fun Firefox add-on to test your knowledge of Vietnamese proverbs by matching them with their English meanings. Perfect for language learners and culture enthusiasts!",
  "icons": {
    "48": "proverb_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietProverb Puzzle"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c9d8e7f6-1234-4bcd-89ab-34567890cdef}"
    }
  }
}