How to Erase Facebook Search
Note: These screenshots were caught in the Facebook application on iphone.
Tip 1: On your News Feed, tap the Browse bar at the top of the screen.
Tip 2: Faucet "Edit" near the top-right edge of the screen.
Tip 3: Faucet "Clear Searches."
Tip 4: Faucet "Validate" to remove your search background.