How to clear cache on FirestickĬache helps Firestick run apps faster, but it might cost you in terms of your precious space occupied by the cache. Want to close your Fitbit account? Check out our article, here. Select the app you want to remove from Firestick.Now, choose Manage Installed Applications.Navigate to Applications and click on it.Boot your Firestick and open Settings from the top menu bar.If you are running out of space on your Amazon Firestick, you can delete some unused apps and claim space. However, it’s not known for providing a hefty amount of storage as it only comes with 8GB of storage, out of which only 4.5GB is available for usage. Amazon Firestick is one of the famous streaming video players.