Upgrade Firefox For Ubuntu

Firefox v.3.6, released January 21st, 2010.Firefox 3.6 is built on Mozilla’s Gecko 1.9.2 web rendering platform, which has been under development since early 2009 and contains many improvements for web developers, add-on developers, and users. This version is also faster and more responsive than previous versions and has been optimized to run on small deviceoperating systems such as Maemo.

If you want to install this on your ubuntu system use this tutorial (Ubuntu Karmic/Jaunty/Intrepid/Hardy)

You can check here what is new in firefox 3.6 from here

Note:- This will install Firefox 3.6 daily builds

For Ubuntu 9.10 Users

Open the command prompt and run the following commands

sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa

Update source list

sudo apt-get update

Install firefox 3.6

sudo apt-get install firefox-3.6

For Other ubuntu version Users

First you need to edit /etc/apt/sources.list file

gksudo gedit /etc/apt/sources.list

Add the one of the following lines

For Ubuntu 9.04 (Jaunty) Users

deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main

For Ubuntu 8.10 (Intrepid) Users

deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu intrepid main
deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu intrepid main

For Ubuntu 8.04 (Hardy) Users

deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu hardy main
deb-src http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu hardy main

Save and exit the file

Now you need to add PPA GPG key

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247510BE

Update the source list

sudo apt-get update

Install Firefox 3.6

sudo apt-get install firefox-3.6

If you already have a version of Firefox 3.5 installed from a repo then upgrade using the following command

sudo apt-get upgrade