Summary
The remote host is missing an update to thunderbird announced via advisory FEDORA-2009-9911.
Solution
Apply the appropriate updates.
This update can be installed with the yum update program. Use su -c 'yum update thunderbird' at the command line.
For more information, refer to Managing Software with yum, available at http://docs.fedoraproject.org/yum/.
https://secure1.securityspace.com/smysecure/catid.html?in=FEDORA-2009-9911
Insight
ChangeLog:
* Thu Sep 17 2009 Jan Horak - 3.0-2.7
- Update to 3.0 beta4
