Examine source code of Nightly Dashboard

{
  "manifest_version": 3,
  "name": "Nightly Dashboard",
  "version": "1.0.0",
  "description": "Better than ever, your personalization is key to us!",
  "chrome_settings_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "lrtstudioofficial@gmail.com",
      "strict_min_version": "109.0"
    }
  }
}