N.B. Facebook Connect has been phased out on all Name.ly/Sites.

Q:

What if I want to prevent Name.ly from logging me in automatically with Facebook connect login I have created earlier?

A:

You will need to remove Name.ly or any other associated site application from your Facebook app list.

You can do it by following this link: http://www.facebook.com/settings/?tab=applications

Short link: Copy - http://name.ly/~e8cP$7f