Ubuntu Security Notice 645-2 – USN-645-1 fixed vulnerabilities in Firefox and xulrunner for Ubuntu 7.04, 7.10 and 8.04 LTS. This provides the corresponding update for Ubuntu 6.06 LTS. A very large amount of vulnerabilities have been addressed in the latest Firefox release from Ubuntu.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70277/USN-645-2.txt
Source: https://packetstormsecurity.com/files/70277/Ubuntu-Security-Notice-645-2.html