UPDATE: The latest Firefox update has now resolved this issue. If you are still experiencing the problem, please run the update to Firefox.
If you are seeing the error below when trying to get to the Swizznet logon screen using Firefox, you will want to open another web browser (Internet Explorer, Chrome, or Safari) to access https://portal.swizznet.com.
Firefox released an update recently that appears to be behind this issue. We are investigating it further and will update if and when we have more information.