How to install Firefox 3.5 on Elyssa

[Go2doug]

I'm running Mint 5 KDE based on Kubuntu 8.04. Is there a relatively painless way to upgrade Firefox 3.0.13 to Firefox 3.5? Here is what my /etc/apt/sources.list file looks like. Thanks.

## -----------------------
## LINUX MINT REPOSITORIES
## -----------------------

## +++ Linux Mint 5 Elyssa (stable) +++
deb http://packages.linuxmint.com elyssa main upstream import

## +++ Backports (not as stable) +++
## deb http://packages.linuxmint.com elyssa backport

## +++ Community (not as stable) +++
## deb http://packages.linuxmint.com elyssa community

## +++ Romeo (unstable) +++
## deb http://packages.linuxmint.com elyssa romeo

## +++ Source Repositories +++
## deb-src http://packages.linuxmint.com elyssa main upstream import
## deb-src http://packages.linuxmint.com elyssa community
## deb-src http://packages.linuxmint.com elyssa backport
## deb-src http://packages.linuxmint.com elyssa romeo

## -------------------
## UBUNTU REPOSITORIES
## -------------------

## +++ Hardy (Ubuntu 8.04) +++
deb http://archive.ubuntu.com/ubuntu hardy main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu hardy-security main restricted universe multiverse

## +++ Backports & Proposed (Ubuntu Unstable) +++
## deb http://archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse
## deb http://archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse

## +++ Source Repositories +++
## deb-src http://archive.ubuntu.com/ubuntu hardy main restricted universe multiverse
## deb-src http://archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse
## deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted universe multiverse
## deb-src http://archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse
## deb-src http://archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse

## ------------------
## OTHER REPOSITORIES
## ------------------

## +++ Canonical (stable) +++
deb http://archive.canonical.com/ubuntu hardy partner

## +++ Medibuntu (stable) +++
deb http://packages.medibuntu.org/ hardy free non-free

## +++ Cathbard +++
## deb ftp://cathbard.com/ ./

[pcdoctor]

Just a hunch but "Firefox 3.0.x will be maintained with security and stability updates until January 2010." (From Mozilla's website)
I'm thinking that eventually 3.5 will be in the repos because 8.04 will be supported until 2011.

[Go2doug]

After much googling, I was able to install Firefox 3.5 using Ubuntuzilla. Here are the instructions I used:

http://ubuntumanual.org/posts/193/insta ... e-easy-way