How to Clear Cache on Firestick (Fix Buffering Free Up Space)

✓ Tested on Firestick 4K Max 🔄 Updated February 2026 ✅ Verified Working

Clearing cache on your Firestick can fix buffering issues, app crashes, and free up precious storage space. Here’s how to do it properly.

Quick Answer

To clear app cache: Settings → Applications → Manage Installed Applications → Select app → Clear cache. This removes temporary files without deleting your login or settings. Clear cache on streaming apps monthly, or whenever they start acting up.

What Is Cache and Why Clear It?

Cache is temporary data stored by apps to load faster. Over time, this cache:

Takes up storage space (Firestick only has 8-16GB)
Can become corrupted, causing glitches
May contain outdated data causing playback issues
Accumulates with every app you use

Clearing cache:

Frees up storage space
Can fix buffering and playback issues
May resolve app crashes
Doesn’t delete your login or settings

Method 1: Clear Cache for Individual Apps

This is the recommended approach—clear cache on problematic apps or ones using the most space.

Open Settings

From the Firestick home screen, go to Settings (gear icon on the right).

Select Applications

Scroll right and select Applications.

Manage Installed Applications

Click Manage Installed Applications.

Select the App

Scroll through the list and select the app you want to clear (e.g., Netflix, Kodi, Cinema HD).

Click Clear Cache

Select Clear cache. You’ll see the cache size drop to 0 bytes.

Repeat for Other Apps

Go back and repeat for other apps as needed.

Method 2: Clear All App Cache at Once

Want to clear cache for everything? Here’s how to identify the biggest offenders.

Find Apps Using Most Cache

Go to Settings → Applications → Manage Installed Applications
Apps are sorted by size—largest first
Look at the “Cache” size for each app
Clear cache on apps with large cache (100MB+)

Apps That Typically Have Large Cache

App Type	Cache Size	Clear Frequency
Streaming apps (Netflix, Prime)	100-500MB	Monthly
Kodi/Stremio	200MB-2GB	Weekly
Web browsers	100-500MB	Weekly
YouTube	50-200MB	Monthly
Games	100-500MB	As needed

Method 3: Clear System Cache (Force Stop All)

This clears temporary system files and stops all running apps.

Go to Applications

Settings → Applications → Manage Installed Applications

Select Each App

Select an app and choose Force stop.

Clear Cache

Then select Clear cache.

Restart Firestick

After clearing multiple apps, restart: Settings → My Fire TV → Restart

Method 4: Use a Cache Cleaner App

Several apps can automate cache clearing on Firestick.

Recommended: Clean Master

Search “Clean Master” in Amazon App Store
Install and open
Tap “Junk Files” to scan
Tap “Clean” to remove cache

Alternative: File Commander

Install File Commander from Amazon App Store
Open and go to Storage Analyzer
Select Cache to see cache files
Delete as needed

When to Clear Cache vs Clear Data

Symptom	Solution
App is slow	Clear cache
Buffering issues	Clear cache
App crashes on open	Clear cache, then clear data if persists
App won’t login	Clear data (then re-login)
Playback errors	Clear cache
”Storage almost full”	Clear cache + uninstall unused apps
Corrupted settings	Clear data (resets everything)

Clear Data Warning

Clear data will:

Delete your login (you’ll need to sign in again)
Remove all app settings
Delete downloaded content
Reset app to fresh install

Only clear data as a last resort after clearing cache fails.

Apps You Should Clear Cache On Regularly

High Priority (Weekly/Monthly)

Kodi — Builds up massive cache from add-ons
Stremio — Torrent cache can be huge
Cinema HD — Streaming data accumulates
Silk Browser — Web browsing cache
YouTube — Video thumbnails and data

Medium Priority (Monthly)

Netflix — Episode previews and thumbnails
Prime Video — Amazon’s own caching
Disney+ — Streaming data
Hulu — Similar to Netflix
Plex — Media library cache

Low Priority (Occasional)

Spotify — Music cache (only if storage low)
Settings apps — Rarely need clearing
System apps — Usually fine

Firestick Storage Management

Check Available Storage

Settings → My Fire TV → About → Storage

You’ll see:

Total storage (8GB or 16GB depending on model)
Used space
Available space

What Uses Storage

Category	Typical Usage
System	3-5GB (unavoidable)
Installed apps	2-5GB
App cache	500MB-2GB
Downloaded content	Varies

Free Up Storage Beyond Cache

If clearing cache isn’t enough:

Uninstall unused apps — Settings → Applications → Manage → Uninstall
Delete downloaded videos — From within each streaming app
Remove Kodi add-ons — Unused add-ons waste space
Factory reset — Nuclear option if storage is critically low

Clearing Cache to Fix Specific Problems

Buffering While Streaming

Clear cache on the streaming app
Clear Kodi/Stremio cache if using
Restart Firestick
Test streaming

App Won’t Open/Crashes

Force stop the app
Clear cache
Try opening again
If still fails, clear data
Reinstall if necessary

”Insufficient Storage” Error

Go to Manage Installed Applications
Sort by size
Clear cache on largest apps
Uninstall apps you don’t use
Check for downloaded content in streaming apps

Slow Firestick Performance

Clear cache on all major apps
Force stop background apps
Restart Firestick
Consider factory reset if very sluggish

Automate Cache Clearing

Create a Reminder

Set a monthly reminder to clear cache on:

Kodi
Your main streaming apps
Any sideloaded apps

Using Background Apps

Apps like Background Apps & Process List can show what’s running and using resources. While not automatic cache clearing, it helps identify problematic apps.

Frequently Asked Questions

Does clearing cache delete my apps?

No, clearing cache only removes temporary files. Your apps, logins, and settings stay intact.

How often should I clear cache?

For most users, monthly is sufficient. If you use Kodi or sideloaded streaming apps heavily, weekly clearing helps.

Will clearing cache fix buffering?

It can help, especially if cache is corrupted. But buffering is usually caused by slow internet or VPN. Clear cache first, then investigate other causes.

What’s the difference between cache and data?

Cache = temporary files (safe to delete, keeps settings) Data = everything (deletes settings, requires re-login)

Can clearing cache cause problems?

Rarely. The first launch after clearing may be slightly slower as the app rebuilds cache. That’s normal.

Why does cache keep coming back?

Apps continuously create cache as you use them—it’s normal. Regular clearing is part of Firestick maintenance.

Should I clear cache before a factory reset?

No, factory reset clears everything. No need to clear cache first.

Summary

Task	Steps
Clear single app cache	Settings → Applications → Manage → Select app → Clear cache
Find large cache users	Settings → Applications → Manage (sorted by size)
Force stop app	Settings → Applications → Manage → Select app → Force stop
Check storage	Settings → My Fire TV → About → Storage
Restart Firestick	Settings → My Fire TV → Restart

Maintenance Schedule:

Weekly: Clear Kodi/Stremio cache
Monthly: Clear cache on streaming apps
Quarterly: Review and uninstall unused apps

Keeping cache under control helps your Firestick run smoothly and prevents “storage full” surprises.

How to Clear Firestick Cache Without Remote (2026 Guide) — Guide to clear firestick cache without remote
How to Check Firestick Storage & Clear Cache (2026 Guide) — Guide to check firestick storage & clear cache

Last updated: February 2026