CentOS Errata and Security Advisory 2008:0616
Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0616.html
The following updated files have been uploaded and are currently syncing to the mirrors:
i386: thunderbird-2.0.0.16-1.el5.centos.i386.rpm
src: thunderbird-2.0.0.16-1.el5.centos.src.rpm