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, potentially conduct spoofing attacks, or compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68617/sa31270.txt
Source: https://packetstormsecurity.com/files/68617/Secunia-Security-Advisory-31270.html