Secunia Security Advisory – Ubuntu has issued an update for firefox and xulrunner. This fixes multiple vulnerabilities, which can be exploited by malicious people to disclose sensitive information, bypass certain security restrictions, or to compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/91328/sa40401.txt
Source: https://packetstormsecurity.com/files/91328/Secunia-Security-Advisory-40401.html