Install Firefox 4 in Ubuntu 10.04 / 10.10

By | 2011/03/24

Here’s how to upgrade your Firefox 3.x in Ubuntu to Firefox 4 using the Mozilla stable ppa.

Simply issue these commands one after another:

$ sudo add-apt-repository ppa:mozillateam/firefox-stable

$ sudo apt-get update

$ sudo apt-get install firefox ubufox

Your existing Firefox will be replaced with the new Firefox 4. Sweet!