Firefox 3.6.6 with crash protection is now available, and according to Mozilla it "provides uninterrupted browsing for Windows and Linux users when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins. If a plugin crashes or freezes, it will not affect the rest of Firefox. You will be able to reload the page to restart the plugin and try again." By default, Ubuntu 10.04 uses Firefox 3.5 and updates have to wait (sometimes it's a long wait) until the Ubuntu team approves them. However, if you are anxious to try the newest version of Firefox there is a simple way to do it.
Just open up Terminal (Applications, Accessories, Terminal) and type or paste:
sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa Enter your Administrator password when prompted. Then, first making sure that Firefox is closed, type or paste:
sudo apt-get update && sudo apt-get upgrade
This will update your package source list and install the newest version of Firefox. On my test machine, everything went smoothly, Firefox 3.6.6 is running and all my add-ons are working fine. Depending on your installed add-ons, your mileage may vary.