Mozilla security researcher moz_bug_r_a4 reported that the fix for CVE-2010-0179 could be circumvented permitting the execution of arbitrary JavaScript with chrome privileges.
This is now public: http://www.mozilla.org/security/announce/2010/mfsa2010-82.html
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2010:0966 https://rhn.redhat.com/errata/RHSA-2010-0966.html