Examine source code of QuickNote

{
  "manifest_version": 2,
  "name": "QuickNote",
  "version": "1.1",
  "description": "A simple note-taking extension",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "128": "icon128.png"
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2d0f089c-25d0-4bb7-ac94-e6fcf228f30e}"
    }
  }
}