The current version of Iceweasel is 10.0.11 for the Wheezy Debian release.
Using the Experimental repository a newer version can be maintained.
First edit /etc/apt/sources.list and add references to experimental repository:
#Iceweasel
deb http://mirror.ox.ac.uk/debian/ experimental main
To ensure that for most packages the testing release is used the file /etc/apt/apt.conf.d/70debconf is edited:
APT::Default-Release “testing”;
And finally updating the iceweasel package.
apt-get install iceweasel -t experimental
