If you wish to remove default browser Iceweasel from kali linux
apt-get remove iceweasel
#echo -e "\ndeb http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main" | tee -a /etc/apt/sources.list > /dev/null
#apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C1289A29
#apt-get update
#apt-get install firefox-mozilla-build
