Just noticed this. The latest Firefox 3 Beta ( at present Beta 3 RC ) is now available in the Ubuntu Gutsy Repositories. The Ubuntu guys had not updated the Firefox 3 Alpha in the repositories for a long time, but now it is done.

To install the latest Firefox 3 Beta in Ubuntu Gutsy

  1. Go to System —> Administration —> Software Sources
  2. Then go to Updates tab, and tick “Unsupported Updates” checkbox.
  3. Click Close. Ubuntu will ask you to reload the software list. Click Reload.
  4. Then open a Terminal window and type apt-get install firefox-3.0

After installing, goto Applications —> Internet —> Firefox 3 Web Browser.

The Firefox 3 Beta will not replace your existing stable install of Firefox 2. So don’t worry. ;) All your Firefox 2 settings and add-ons will remain intact. :)