Do you guys support any method from where we can login from facebook?
Yes we support various type of SSO (Single Sign On) and facebook is one of them as Facebook offers reliable integration for Single Sign-On for all your web and mobile applications. The service offers a full-featured federation engine and flexible access policy. A user can log in with a single ID to gain access to a connected system or systems without being prompted to enter different usernames or passwords.
Here is the article of how to configure Facebook SSO