need help installing firefox

[misha cabanski]

>From: "John DeCarlo" <johndecarlo at gmail.com>
>Reply-To: Kubuntu Help and User Discussions 
><kubuntu-users at lists.ubuntu.com>
>To: "Kubuntu Help and User Discussions" <kubuntu-users at lists.ubuntu.com>
>Subject: Re: need help installing firefox
>Date: Fri, 7 Jul 2006 12:39:29 -0400
>
>
>Well, it is hard to tell what may have happened to your system.
>
>But it already had Firefox installed.  So what you did us causing 
>confusion.
>
>I guess I would uninstall the Firefox you downloaded.
>
>Then I would uninstall the Ubuntu package for Firefox and reinstall it.
>
>sudo apt-get remove firefox
>sudo apt-get install firefox

john,
thank you for getting in touch, i tried your suggestion, and here's the 
result:

misha at misha-desktop:~$
misha at misha-desktop:~$ sudo apt-get remove firefox
Password:
Reading package lists... Done
Building dependency tree... Done
Package firefox is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
misha at misha-desktop:~$
misha at misha-desktop:~$
misha at misha-desktop:~$ sudo apt-get install firefox
Reading package lists... Done
Building dependency tree... Done
Package firefox is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libnss3
E: Package firefox has no installation candidate
misha at misha-desktop:~$