A lot of my users are reporting that they are incapable of logging in with Google or Facebook using any version of Internet Explorer - even after clearing cookies.
We tried to login via Facebook to your project from IE. This works fine.
Can you please provide more information? What happens step by step?
On a fresh, clean install of Windows 8 - with absolutely no programs changed or modified, I navigate to our userecho page and attempt to login in IE. I click the facebook button, and give it my account info - at which point the dialog just hangs open and no login ever occurs.
On other attempts, the dialog will just close - and no login occurs.