The Mozilla Foundation has released Firefox 3.6.4 and Firefox 3.5.10 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, cause a denial-of-service condition, obtain sensitive information, or conduct cross-site scripting attacks. Some of these vulnerabilities also affect Thunderbird and SeaMonkey.

US-CERT encourages users and administrators to review the security advisories for Firefox 3.6 and Firefox 3.5 and apply any necessary updates to help mitigate the risks.

Read more at: US-CERT Current Activity