Examine source code of QuickNotes

{
  "manifest_version": 3,
  "name": "Quick Notes",
  "version": "1.0",
  "description": "A simple extension to save quick notes",
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "note16.png",
      "48": "note48.png",
      "128": "note128.png"
    }
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "note16.png",
    "48": "note48.png",
    "128": "note128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quicknotes@local.extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}