Same problem here,definitely a Firefox issue,as i get that same message on it,but IE loads it no problem.
On another note,finally got my warranty stuff straightened out.The person i've been dealing with seems new,and was not aware of a U.S. returns center,so once i cleared that up,i got my RMA number right away.To top it off,they haven't even received this mod back yet,and they already have the replacement packaged up,tracking # issued,and just waiting for me to get the bad one sent back,as soon as they receive it,the new one will be on the way.