You mention that you've set the option for redirection in the module (SCLogin?). We have several options for redirection. The redirection settings for social logins are actually found in the component in JFBConnect backend > Configuration > General section. SCLogin's options for redirection only apply if logging in/out with a standard Joomla user. If you've already set the component settings and are still having problems, please let us know.
-Melissa