Earlier I mentioned that Firefox 4 Release Candidate was set to release on 25th of this month, unfortunately it is delayed with the release of Firefox beta 12. The delay was caused due o the fact that there are still a lot of security issues to be fixed and several patches to be applied before the final release.
Christian Legnitto, one of the Mozilla developers wrote in tha mailing list that
“…but we still might need a beta 13 if issues found in beta 12 need beta coverage before a release candidate (RC)”
Well as usual the new beta comes with improved performance and bug fixes.
You can install the beta 12 in Ubuntu via PPA, to do so open the terminal and type:
sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get update
sudo apt-get install firefox-4.0
I hope Firefox 4 releases soon with better performance compared with other browsers.