The SCLogin module is an improved Joomla login module with many additional features. However, it does not provide social authentication functionality by itself.
JFBConnect is our social integration extension. If you want to add social network authentication to your site to let users register with one click, have profile data imported, add any of the 50 social widgets we support, add social posting features to push content from your site back to Facebook Pages, Twitter Streams or LinkedIn Company Pages, you'll need to add JFBConnect to your site. For more information, please see:
www.sourcecoast.com/joomla-facebook/
Thanks,
Alex