Clear Cache and Data from Individual Apps

The fastest way to recover space is to clear the cache and app data that Firestick stores without deleting the app itself. Go to Settings > Applications > Manage Installed Applications, then select the app you want to clean. Choose Clear Cache first — this removes temporary files the app created while running. If you need more space, select Clear Data, which also removes your login information and saved preferences for that app, so you will need to set it up again next time you use it.

Apps that stream video — like Netflix, Prime Video, or Plex — often store downloaded episodes or cached thumbnails that can take up gigabytes. Start with these if your storage is low. Clearing cache is safe and reversible; the app will rebuild it the next time you use it. Clearing data is also safe but requires you to log back in.

Key Takeaways

  • Clearing app cache removes temporary files without affecting your login or settings, and is the safest first step when storage is full.
  • Uninstalling apps you no longer use frees up the most space, especially streaming apps that may have cached video files.
  • Firestick automatically manages storage by removing old apps when space runs critically low, but you can speed this up manually.
  • Restarting your Firestick can sometimes recover space by clearing temporary system files that are not tied to any app.

Uninstall Apps You Are Not Using

Removing apps you no longer watch or use is the most effective way to free up significant space. From the home screen, navigate to Your Apps and Channels, find the app, and select it. Choose Uninstall and confirm. The app and all its data will be removed, and you can reinstall it later from the Amazon Appstore if you change your mind — your login credentials will still be saved in most cases.

Streaming apps take up the most room because they cache video previews, episode artwork, and sometimes entire downloaded episodes. If you have multiple streaming services installed but only use one or two regularly, uninstalling the others can recover 500 MB to 2 GB per app. You can always reinstall them later.

Restart Your Firestick to Clear Temporary Files

A restart clears temporary files and cache that the system itself creates while running, separate from app-specific storage. Go to Settings > System > Restart and confirm. The device will shut down and restart, which usually takes one to two minutes. This is a safe operation and does not delete any apps or personal data.

If your Firestick has been running for weeks without a restart, temporary system files can accumulate and consume noticeable space. A restart is often the quickest fix before you start uninstalling apps. If storage is still low after a restart, move on to clearing app cache or uninstalling unused apps.

Check Your Storage Status and What Is Using It

To see exactly how much space you have left and what is taking it up, go to Settings > System > About > Storage. This screen shows your total storage, how much is used, and how much is free. It does not break down which apps are using the most space, but it tells you whether you are in the danger zone — most Firesticks have 8 GB or 16 GB total, and you should keep at least 1 GB free for the system to run smoothly.

If your free space is below 500 MB, Firestick will start removing apps automatically to prevent crashes. You will see a notification when this happens. Manually clearing space before you reach this point prevents the system from removing apps you want to keep.

Remove Downloaded Content from Streaming Apps

Some apps like Prime Video, Netflix, and Disney+ let you read episodes or movies to watch offline. These downloads take up storage space. Open the app, look for a Downloads or My Downloads section, and delete the content you have already watched or no longer need. You can always read it again later.

Downloaded video files are often the largest items on your Firestick. If you downloaded a season of a show to watch on a trip and finished it, removing those files can free up 1 GB or more. Check your streaming apps regularly if you read content often, because downloads do not automatically delete after you watch them.

Understand How Firestick Manages Storage Automatically

Firestick has a built-in system that removes apps you have not used recently when storage gets critically low. The device prioritizes keeping apps you use often and removes older or rarely-used apps first. You will get a notification when this happens, and you can reinstall the removed app from the Appstore anytime.

This automatic cleanup is a safety feature, but it can remove apps you want to keep if you are not paying attention to storage. By manually clearing cache, uninstalling unused apps, and restarting regularly, you avoid surprises and keep the apps you actually use available.

Frequently Asked Questions

Will clearing app cache delete my login information?

No. Clearing cache removes only temporary files like downloaded images and video previews. Your username, password, and saved preferences stay intact. You will not need to log back in. If you want to remove your login information, you must select Clear Data instead, which is a separate option.

Can I move apps to an external storage device?

Firestick does not support external storage or microSD cards. All apps and data must be stored on the device's internal memory. Your only options are to uninstall apps, clear their cache, or use cloud storage through the app itself — for example, saving photos to Amazon Photos instead of storing them locally.

How much free space should I keep on my Firestick?

Keep at least 1 GB free for the system to run smoothly and install updates. If you regularly read content or install new apps, aim for 2 GB free. Below 500 MB, Firestick will start removing apps automatically to prevent crashes.

What happens if I uninstall an app and then reinstall it?

Reinstalling an app downloads it fresh from the Amazon Appstore. In most cases, your login information is saved in your Amazon account, so you will not need to enter your username and password again. However, any personal settings or saved data within the app will be gone if you cleared that data before uninstalling.

Does restarting my Firestick delete anything?

No. A restart clears temporary files from memory but does not delete apps, accounts, or personal data. All your apps, logins, and settings will be exactly as you left them after the restart completes.