This is important as I tested it on my site and on Q2A site now. When I click the Facebook Login button, I am logged in to Q2A site. That is OK. Now when I click the Facebook Logout button (from within the Q2A site), I get logged out from Q2A AND from my Facebook account!
I wonder how this hasn't been raised before. I am working on بنات بنات right now and this problem is really weird. Is there a fix or a workaround?