Remove all data from cache will help you to run your app smooth and properly. Follow the steps to do so:
Open your phone settings
Click on “Apps and... moreRemove all data from cache will help you to run your app smooth and properly. Follow the steps to do so:
Open your phone settings
Click on “Apps and notifications”
Search for “Facebook App”
Then tap on “Storage and cache”
In the end, click on “Clear cache” to delete the data from the cache.
And you got your answer of how to clear Facebook cache on android.