Install Firefox 4 beta (Minefield) on Ubuntu

UPDATE: Firefox 4 (stable version) is now available for Ubuntu. So you can install it instead. Instructions on installing Firefox 4 can be found here

To install Firefox 4 beta on Ubuntu execute following commands

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

sudo apt-get update

sudo apt-get -y install firefox-4.0

The new browser will appear as Minefield 4.0 Web Browser in Applications Menu. It will be installed alongside your existing Firefox install (if any).