The new beta of Firefox is out. Go and get it! But beware, a major security flaw is now being seen as a security threat in all versions of Firefox. The problem has do with the way Firefox deals with IDN's or International Domain Names. IDN's are domain names that use local language characters. Although there is no known attack yet the exploit could be very devasting to those who haven't downloaded the patch. Director of Engineering at Mozilla, Mike Schroepfer said, "Luckily we do not have any known use of this exploit, but it is fairly critical if there were to be (an attack), so this is a recommended download"
Cnet

-Vash