Examine source code of Flashcard Reminders

{
  "manifest_version": 2,
  "name": "Flashcard Reminders Basic",
  "version": "1.0",
  "description": "Reminds users to review vocabulary flashcards at regular intervals.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/flash-logo.png"
    }
  },
  "icons": {
    "128": "images/flash-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5cbb03e9-7d19-4c08-b5cb-0d0425521aca}"
    }
  }
}