To retrieve the current Firebox feature key from the WatchGuard website: Before you add the new feature key in Policy Manager, you must remove the old feature key. To update the feature key manually, you can download the feature key from the WatchGuard website, and then paste it into your device configuration file. The updated feature key enables the functionality on your device. You must add a feature key to a new device, and you must update the device feature key after you activate a service or upgrade option.