Open the Facebook app or website
Log in to your account
Go to Settings and privacy
Select Settings
Open Accounts Center
Choose Password and security
Select Where you’re logged in
Find the device or session you want to disconnect
Select Log out
To disconnect an app or website, go to Apps and websites
Select the app or website
Choose Remove
Confirm the removal
To deactivate your Facebook account, go to Accounts Center
Select Personal details
Choose Account ownership and control
Select Deactivation or deletion
Choose Deactivate account
Follow the prompts to confirm
To delete your Facebook account, select Delete account instead of Deactivate account
Follow the prompts to complete the process