Firefox has been updated to
Firefox 2.0.0.6.
"What's New in Firefox 2.0.0.6"
"Security Update: The following security issues have been fixed."
"Fixed in Firefox 2.0.0.6:
MFSA 2007-27 Unescaped URIs passed to external programs
MFSA 2007-26 Privilege escalation through chrome-loaded about:blank windows"