Open the Facebook app or go to facebook.com and log in
Tap your profile picture or menu
Go to Settings and privacy
Tap Settings
Open Accounts Center
Tap Personal details
Tap Account ownership and control
Tap Deactivation or deletion
Select the Facebook account you want to deactivate
Choose Deactivate account
Tap Continue
Enter your password if prompted
Follow the on-screen steps to confirm
Choose whether to keep using Messenger
Confirm deactivation
Log out if needed