apt-get install wants to remove too much

[Thomas Schuett <ts@tschuett.de>]

Hello,

when I do  apt-get install mozilla-browser

it answers:
[...]
WARNING: The following essential packages will be removed
This should NOT be done unless you know exactly what you are doing!
  e2fsprogs sysvinit

It also wants to remove many other tings I actually need, like 
e2fsprogs or  nfs-kernel-server.

How can I install the mozilla-browser without loosing other needed
or even essential packages? (An older version of mozilla would be
acceptable for me.)

I found a similar question under 
http://lists.debian.org/debian-user/2003/09/msg05272.html
but unfortunately this guy never got an answer. Hopefully I will have more 
luck.

Thanks for any help!
PS: I run a disk installation of knoppix, maybe knoppix 3.4