Secunia Security Advisory – Ubuntu has issued an update for firefox, firefox-3.0, and xulrunner-1.9. This fixes a weakness and a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76190/sa34505.txt
Source: https://packetstormsecurity.com/files/76190/Secunia-Security-Advisory-34505.html