Iceweasel da versão Debian Wheezy na versão Debian Squeeze do Debian

Entrar no terminal como root e incluir na sources.list o endereço

#nano /etc/apt/sources.list

deb http://backports.debian.org/debian-backports squeeze-backports main

#apt-get update

#apt-get -t squeeze-backports install iceweasel

#apt-get -t squeeze-backports install iceweasel-l10-pt-br