Since you are using ubuntu the update is simple. Go into the synaptic package manager, update the package list, then filter for firefox. If an updated version of firefox is available then you can tell synaptic to update the program.

Alternatively, you could get the *very* latest beta version of Firefox from http://www.mozilla.com/products/download.html?product=firefox-3.5b4&os=linux&lang=en-US. Untar this file, and then just run the 'firefox' file inside the directory you untarred. You can then link /usr/bin/firefox to this file. Thanks.

Gutsy isnt supported anymore upgrade to hardy anyway. Id say upgrade all the way to jaunty if you can. Its better to use the newest version of ubuntu to get the latest programs, bug fixes and new features.

Ubuntu 8.04 Long Term Support (LTS) provides a stable platform for software and hardware vendors, developers and users. With three years of support and maintenance on the desktop, 8.04 LTS is a great choice for large-scale deployment. IF you want a stable Ubuntu release, that would be the version to use. Otherwise, you will want to back up your data and install the most current Ubuntu 9.04 release.

If you install Ubuntu 9.04, you will be able to keep software up to date simply by periodically updating the system.

If you choose instead to use an older version or remain where you are (which I would not recommend - use at LEAST the LTS 8.04 release or the current 9.04 release; the other releases either are no longer supported or will not be supported much longer), then you can get software directly from the Mozilla site:
http://www.mozilla.com/en-US/ is the site where you can get Firefox and the parent site, http://www.mozilla.org/ can point you to other Mozilla based software.
http://support.mozilla.com/en-US/kb/Installing+Firefox+on+Linux describes how to install Firefox. I hope these notes are helpful to you.

Download the source code from mozilla.com and install another firefox app.

If you are using ubuntu:
$ apt-get update firefox

If you are using Debian:
$ apt-get update iceweasel

If you are using fedora:
$ yum update firefox

Kunal, unfortunately, your answer is inaccurate. apt-get update refreshes the package cache, apt-get install installs an aoplication, so if you have the version that you want available, then sudo apt-get update first to update the cache, then sudo apt-get install firefox (Ubuntu).

The problem with this is that our friend was using an older version of Ubuntu and the newest browser was not available, and that is why we had provided the alternatives of either upgrading to a newer version or grabbing the latest browser from the Mozilla site.

Understand the difference?

It's true that you're probably going to have to build something from source, however, the typical path one would take for an OS that's still supported and you don't want to upgrade the whole OS is to use Backports. This is the kind of situation that backports is meant to accomodate. I would recommend using pinning to keep you from blowing away any other programs that exist in backports. Unfortunately since gutsy is no longer supported, you're kind of out of luck, but for the future, here's some good reading for Backports in Ubuntu:

https://help.ubuntu.com/community/UbuntuBackports

All you would have to do is go over to [url]http://www.mozilla.com/en-US/[/url] and click download the latest version of firefox. then after that you would open it up and let it install itself

#9 BigC 2009-05-23 04:56 All you would have to do is go over to www.mozilla.com/en-US/ and click download the latest version of firefox. then after that you would open it up and let it install itself.

BigC, I am sorry, but I think your answer is way too simplistic; I do not see any way that the Mozilla package is going to "just install itself"! What will happen is that you will get either a file with a tar.gz extension or a tar.bz2 extension. I do not believe that every system will automatically know what to do with these files; in fact, most won't. What you generally have to do with these files is save them somewhere you know where they will be.

In this case, open a terminal, then run the command: tar xjvf firefox-3.0.10.tar.bz2

From there, the firefox program will be available in the expanded directory, which relative to the location you downloaded the file, is firefox/firefox, for example, /home/masinick/firefox/firefox

There is a nice way to upgrade a firefox to latest version, which I have learnt recently.

1. Download ubuntuzilla deb from http://sourceforge.net/projects/ubuntuzilla/

2. run ubuntuzilla.py which asks to upgrade to latest version.

3. At the end it asks for checking Firefox update frequently. If you say y, next time you will be promt to upgrade firefox when update is available.

More info:
http://maketecheasier.com/easily-upgrade-your-firefox-to-35-in-ubuntu/2009/08/12

HTH

However Firefox can also be upgraded using system upgrade depedent method. i.e You have to look at System updater menu and select the appropriate firefox update. Here i assume that you have configured system updater.

Get the source and compile it from scratch

In some Linux distros you can upgrade Firefox by logging on as root. I'm not sure if you could update Firefox this way in Ubuntu, but here is the instructions.

[*]Go to terminal and enter "sudo firefox".

[*]When Firefox appears go to help > check for updates.

[*]And follow the prompts

hi..!
i'm new to linux flavor
i hope these commands will helpful

Update Firefox on Ubuntu / Debian Linux
$ sudo apt-get update
$ sudo apt-get install firefox

Update Firefox on Fedora / Redhat / CentOS Linux
# yum update
# yum update firefox

if your problem not solved by using this commands i'm solved i'm sry..!
thank u...!