I use Slackware Linux as the main operating system. Today I wanna upgrade some softwares installed on my system like Mozilla Firefox, Thunderbird and etc. Currently the firefox version installed in my system is version 3.0.8. The latest version of firefox is 3.5 so I wanna upgrade it and other softwares too. To update/upgrade Slackware I use ‘slapt-get’, an apt-get like tool to upgrade software in debian families.