Why in the first place download anything ?
The supported versions of Suse = 11.3 , 11.4 ( 11.2 ) have a lot of software
included in the "Package Installer" ( Yast ) : 11,000 packages.
Or by using the command line :
Searching for a package : # zypper se <name> (Or part of name.)
Installing a package : # 'zypper in <package-name>
( Firefox 4 is included in Suse 11.4 ).
Which Suse are you using ? http://linuxsilo.net/docs/smart-questions_en.html
And which software is it about ? There are more than 10 different ways
to deal with software : Only a few will be a binary like Firefox.
Most of it have to be build before you can use it :
" Possible commands and scripts to be run to start building Linux software "