update to Firefox 22.0 and Thunderbird 17.0.7
including the following security fixes
* MFSA 2013-49
Miscellaneous memory safety hazards
* MFSA 2013-50
Memory corruption found using Address Sanitizer
* MFSA 2013-51
Privileged content access and execution via XBL
* MFSA 2013-52
Arbitrary code execution within Profiler
* MFSA 2013-53
Execution of unmapped memory through
onreadystatechange event
* MFSA 2013-54
Data in the body of XHR HEAD requests leads to
CSRF attacks
* MFSA 2013-55
SVG filters can lead to information disclosure
* MFSA 2013-56
PreserveWrapper has inconsistent behavior
* MFSA 2013-57
Sandbox restrictions not applied to nested frame
elements
* MFSA 2013-58
X-Frame-Options ignored when using server push
with multi-part responses
* MFSA 2013-59
XrayWrappers can be bypassed to run user defined
methods in a privileged context