Mozilla Firefox and Thunderbird were updated to version 8.0 which fixes several security vulnerabilities:

* MFSA 2011-52 - Code execution via NoWaiverWrapper (CVE-2011-3655)
* MFSA 2011-51 - Cross-origin image theft on Mac with integrated Intel GPU (CVE-2011-3653)
* MFSA 2011-50 - Cross-origin data theft using canvas and Windows D2D (CVE-2011-3649)
* MFSA 2011-49 - Memory corruption while profiling using Firebug (CVE-2011-3650)
* MFSA 2011-48 - Miscellaneous memory safety hazards (rv:8.0) (CVE-2011-3651, CVE-2011-3652, CVE-2011-3654)
* MFSA 2011-47 - Potential XSS against sites using Shift-JIS (CVE-2011-3648)