Secunia Security Advisory – Secunia Research has discovered two vulnerabilities in Mozilla Firefox, which can be exploited by malicious people to spoof file types in the file download dialog.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/37627/sa12979.txt
Source: https://packetstormsecurity.com/files/37627/Secunia-Security-Advisory-12979.html