Open Facebook and log in
Tap the menu icon
Go to Settings & privacy
Tap Settings
Open Activity Log
Find the history item you want to delete
Tap the three dots next to the item
Select Delete or Move to trash
Confirm the deletion
To clear search history, go to Activity Log
Tap Logged actions and other activity
Select Search history
Tap Clear searches
To clear watch history, go to Activity Log
Select Videos you’ve watched
Delete individual items or clear the list if available
To clear browser history from Facebook in-app browser, open Settings
Go to Browser or Browser settings
Tap Clear browsing data
Confirm the action