At its F8 developer conference, Facebook announced Account Kit, a new way for app developers to let users sign up for services with an email or phone number, no username or password required. SEE ...

Ensure that no one else is currently logged into Facebook on your computer before entering your email address and password into the login boxes in the top right-hand section of the tab.

Helpful Facebook Sign in tips on how to create, sign up, login, sign out, or log out of Facebook account safely and securely on a private and public computer.