Firefox was updated to version 19.0.
Seamonkey was updated to version 2.16.
Thunderbird was updated to version 17.0.3.

* MFSA 2013-21/CVE-2013-0783/2013-0784
Miscellaneous memory safety hazards
* MFSA 2013-22/CVE-2013-0772 (bmo#801366)
Out-of-bounds read in image rendering
* MFSA 2013-23/CVE-2013-0765 (bmo#830614)
Wrapped WebIDL objects can be wrapped again
* MFSA 2013-24/CVE-2013-0773 (bmo#809652)
Web content bypass of COW and SOW security wrappers
* MFSA 2013-25/CVE-2013-0774 (bmo#827193)
Privacy leak in JavaScript Workers
* MFSA 2013-26/CVE-2013-0775 (bmo#831095)
Use-after-free in nsImageLoadingContent
* MFSA 2013-27/CVE-2013-0776 (bmo#796475)
Phishing on HTTPS connection through malicious proxy
* MFSA 2013-28/CVE-2013-0780/CVE-2013-0782/CVE-2013-0777/
CVE-2013-0778/CVE-2013-0779/CVE-2013-0781
Use-after-free, out of bounds read, and buffer overflow issues
found using Address Sanitizer