I just pushed Iceweasel 5.0 to Debian experimental. Why not unstable, some will ask? Well, because we still need to give some time after a first notice before breaking plenty of packages (Thanks to Julien Cristau for the MBF, by the way).
I also discontinued the Iceweasel 4.0 backport for Squeeze, as Iceweasel 4.0 won’t be receiving security updates. Speaking of security updates, 3.6.18 was also made available on mozilla.debian.net for Wheezy, Squeeze and Lenny. However, I still have to backport the necessary patches to 3.5 in Squeeze and 3.0 in Lenny. My real life schedule wasn’t compatible with the security release schedule, so I got late on the security backport train.
In the coming weeks, there will also be some additional changes to the mozilla.debian.net repository, but I’ll give more details when that happens.