As you use Facebook (Or most social media platforms and web browsers, really), the various posts you make or interact with are stored in the background to make everything load faster the next time you check these posts and pieces of media out. Over time, that data can build up and will start to take up more and more storage space.
How Do I Clear My Cache?
Open the Facebook app and tap Menu icon in the bottom-right corner of the screen.
To clear the Facebook app cache,just go to Settings–>Apps and notifications–>See all apps–>Facebook. Tap on Storage and cache and select Clear cache.
Is It OK to Clear Data on Facebook?
It is okay to clear your Facebook cache.
Your Facebook profile will not be affected by clearing the cache and so on will not be deleted or removed.
If you use Facebook on a browser and clear your browser’s cookies , you’ll need to log back into your Facebook account .