I have an ipad, running the latest version of the facebook app. When I go to log out of my account, from the facebook app itself, I see someone else's account as an option to log into as well as my own. I do not know the password of this account. I cannot see any option to remove this account, no cross or edit button. Nothing from the settings app has helped. I have tried uninstalling and reinstalling facebook. Please will someone provide me with instructions as to how I remove this account. Thank you.