Firefox 3.6 Critical Vulnerability Already Fixed

With the annual Pwn2Own hacking event due to kick off tomorrow, Mozilla has confirmed that Firefox 3.6 has an unpatched critical vulnerability. The fact that Pwn2Own competitors will not be able to exploit this vulnerability to claim the Firefox hacking prize will be of no interest to the millions of ordinary users who think they remain exposed and vulnerable until a patch arrives at the end of the month. But they could get protected right now if they wanted, and without changing browser clients as suggested by the German government.