Security update for Mozilla Firefox (critical)

Mozilla Firefox was updated to 10.0.3 ESR to fix various
bugs and security issues.

The following security issues have been fixed:

MFSA 2012-19: Mozilla developers identified and fixed
several memory safety bugs in the browser engine used in
Firefox and other Mozilla-based products. Some of these
bugs showed evidence of memory corruption under certain
circumstances, and we presume that with enough effort at
least some of these could be exploited to run arbitrary
code.

In general these flaws cannot be exploited through
email in the Thunderbird and SeaMonkey products because
scripting is disabled, but are potentially a risk in
browser or browser-like contexts in those products.