The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.mozilla.org/security/announce/mfsa2005-39.html http://www.vuxml.org/freebsd/1f2fdcff-ae60-11d9-a788-0001020eed82.html

The following packages are affected: firefox linux-firefox