{
  "manifest_version": 2,
  "name": "permissions",
  "browser_specific_settings": {
    "gecko": {
      "id": "permissions@example.com"
    }
  },
  "version": "1.0",
  "description": "Request optional extension permissions.",
  "permissions": ["nativeMessaging", "geckoViewAddons"],
  "optional_permissions": ["geolocation", "*://example.com/*"]
}