Secunia Security Advisory – Ubuntu has issued an update for firefox and xulrunner. This fixes a vulnerability, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79922/sa36141.txt
Source: https://packetstormsecurity.com/files/79922/Secunia-Security-Advisory-36141.html