Examine source code of Quick Clipboard

{
  "manifest_version": 3,
  "name": "Quick Clipboard",
  "version": "1.0.1",
  "description": "Paste text, download as .txt, and sync to your MERN server",
  "permissions": [
    "clipboardRead",
    "clipboardWrite",
    "storage"
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-clipboard@cthulhu.dev"
    }
  }
}