[quote]
In a nutshell:
dselect update
apt-get install firefox -s (remove -s for simulation if it looks ok)
[/quote

Running usb boot drive installed from the knoppix 6.7.1 DVD

from a root terminal window:
dselect update and sudo dselect update
gives co9mmand not found

sudo apt-get install firefox
gives

Package firefox is not available, but is referred to by another package

See also this unresolved thread:
http://www.knoppix.net/forum/threads...675&highlight=