Mozilla today released Firefox 3.04 which addresses many several security issues among other bug fixes and exhancements.
The update fixes the following critical issues:
MFSA 2008-55 critical Crash and remote code execution in nsFrameManager
MFSA 2008-54 Buffer overflow in http-index-format parser
MFSA 2008-52 Crashes with evidence of memory corruption (rv:22.214.171.124/126.96.36.199)
The following high vulnerabilities were also fixed:
MFSA 2008-57 -moz-binding property bypasses security checks on codebase principals
MFSA 2008-56 nsXMLHttpRequest::NotifyEventListeners() same-origin violation.