- new version 3.1.15 - fixed http://www.mozilla.org/security/announce/2011/mfsa2011-34.html (Protection against fraudulent DigiNotar certificates, fixed in thunderbird 3.1.13) - fixed http://www.mozilla.org/security/announce/2011/mfsa2011-35.html (Additional protection against fraudulent DigiNotar certificates, fixed in thunderbird 3.1.14)