Firefox 3.0.6 has been released by Mozilla. As with all minor releases in Firefox 3, this release mainly focuses on security and stability fixes. Specific stability issues addressed include fixing display issues with long running Firefox processes and improving the interaction of scripted commands and plugins. For the privacy minded, the client user ID has been removed from crash reports. Finally, I've included a list of security fixes below.

Security Fixes in Firefox 3.0.6
MFSA ID Impact Description
MFSA 2009-01 Critical Crashes with evidence of memory corruption (rv:1.9.0.6)
MFSA 2009-02 High XSS using a chrome XBL method and window.eval
MFSA 2009-03 High Local file stealing with SessionStore
MFSA 2009-04 Moderate Chrome privilege escalation via local .desktop files
MFSA 2009-05 Low XMLHttpRequest allows reading HTTPOnly cookies
MFSA 2009-06 Low Directives to not cache pages ignored