Help test the future of Firefox! The latest beta version of Firefox is now available as a preview release.
To install Firefox 4 Beta 2, open a Terminal window (Applications -> Accessories -> Terminal) and copy+paste the following lines:
sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get update
sudo apt-get install firefox-4.0
If you already have the ubuntu-mozilla-daily ppa installed you only have to copy: sudo apt-get install firefox-4.0
When installed you can find Firefox 4 Beta 2 under Applications -> Internet -> Mozilla Developer Preview Web Browser
Firefox 4 Beta 2 will be a new install so it doesn’t replace the version you’re using now.
This is pre-release software: you may encounter compatibility problems with some websites and add-ons.