If You Don't Make Your Cart Stay In Https You Now Get A Redirect Error With Firefox

Not for sure if it is a similar issue to this or not, but I've noticed that I can no longer just log in to Paypal. I don't get a redirect message, but it does not log in with Firefox 31. It just gets stuck on the “loading” screen. Then if I close that tab and open Paypal again I am logged in.

This seems a different issue.