Greetings
Please tell me how to make the registration / login button on the forum via facebook?

Instead of having to log in, you go to the registration page.
How can I make it so that I can register on the forum through an FB account?

hello

see the tutorials
https://help.forumotion.com/t151491-optimization-of-the-facebook-connect-on-forumotion-forums?highlight=facebook+connect
https://help.forumotion.com/t155540-facebook-connect-update?highlight=facebook+connect

As I understand, this button is needed to enter the forum through the FB without registering an account on the forum.
But even in your forum, when I use the "FB connect" button, it redirects me to the registration page.
Or I do not correctly understand the purpose of this function?

Yes because you must accept each forum rules before registration
more info here https://help.forumotion.com/t131456-new-option-new-options-on-your-facebook-connect?highlight=Facebook

Thanks!

you are welcome

Problem solved & topic archived. Please read our forum rules: ESF General Rules