Mozilla · Thunderbird · CVE-2009-0777
**Name of the Vulnerable Software and Affected Versions**
Mozilla Firefox versions prior to 3.0.7
Thunderbird versions prior to 2.0.0.21
SeaMonkey versions prior to 1.1.15
**Description**
The issue allows remote attackers to spoof URLs and conduct phishing attacks by decoding invisible characters when they are displayed in the location bar, causing an incorrect address to be displayed.
**Recommendations**
For Mozilla Firefox versions prior to 3.0.7, update to version 3.0.7 or later.
For Thunderbird versions prior to 2.0.0.21, update to version 2.0.0.21 or later.
For SeaMonkey versions prior to 1.1.15, update to version 1.1.15 or later.