a new version of thunderbird is available at http://www.mozilla.org/en-US/thunderbird/download/?product=thunderbird-15.0&os=linux&lang=de Reproducible: Always
http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/mail-client/thunderbird-bin/ChangeLog?r1=1.82&r2=1.83