wget http://download-location sudo tar xjvf thunderbird-24.2.0.tar.bz2 -C /opt ln -s /opt/thunderbird/thunderbird /usr/bin/thunderbird [sudo] password for one: ln: creating symbolic link `/usr/bin/thunderbird': File exists sudo rm /usr/bin/thunderbird ln -s /opt/thunderbird/thunderbird /usr/bin/thunderbird The above is how Idid it, if you don't do it properly you'll find that you are still using the old version (........

wget http://download-location mv /usr/bin/firefox /usr/bin/firefox-old sudo tar xjvf firefox-26.0.tar.bz2 -C /opt ln -s /opt/firefox/firefox /usr/bin/firefox The above is how Idid it, if you don't do it properly you'll find that you are still using the old version (so verify in About that it is the new version). I've verified the above method works perfectly, it's great if you're using an older version of Linux and need to update the most........