Secunia Security Advisory – Ubuntu has issued an update for firefox and xulrunner. This fixes some vulnerabilities, which can be exploited by malicious people to bypass certain security restrictions and potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/88500/sa39271.txt
Source: https://packetstormsecurity.com/files/88500/Secunia-Security-Advisory-39271.html