Red Hat Security Advisory: thunderbird security update
Mozilla: Code installation through holding down Enter (MFSA 2011-40) Mozilla: Miscellaneous memory safety hazards  (MFSA 2011-36) Mozilla: Integer underflow when using JavaScript RegExp (MFSA 2011-37) Mozilla: XSS via plugins and shadowed window.location object (MFSA 2011-38) Mozilla: Defense against multiple Location headers due to CRLF Injection (MFSA 2011-39)
cpe:/o:redhat:enterprise_linux:6::server