Can we get support on this. I am experiencing the same problem. I've unpublished my JFB login modules and the site is working in firefox now but it shuts down in Internet Explorer. Can't imagine what's happening in Safari. Any suggestions?
This is what I did before it acted this way.
I set my Callback Url in Facebook Developers Area and changed to my homepage
Then I added a next JFB login module to my home page.
After refreshing I saw the problem, So i quickly undo the changes I had made.
Please help if possible