Examine source code of QuickNotes

{
  "manifest_version": 2,
  "name": "Quick Notes",
  "description": "A simple browser extension to take quick notes.",
  "version": "5.0",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf89a398-8fbf-4ee6-a31a-0cca690ead41}"
    }
  }
}