Yes, JFBConnect has integration already for Virtuemart. With the JFBConnect integration, a user can authenticate on your site with any of the 10 social networks we support for a much faster authentication experience. Additional information, like name, city, zip code and other details can be imported from some social networks to populate their Virtuemart profile for an even quicker checkout experience.
I hope that helps answer your question, but if you need any other details, just let us know.
Thanks,
Alex