Mozilla Firefox before 39.0 on OS X includes native key press information during the logging of crashes, which allows remote attackers to obtain sensitive information by leveraging access to a crash-reporting data stream.
https://security.gentoo.org/glsa/201512-10
https://bugzilla.mozilla.org/show_bug.cgi?id=1138669
http://www.securitytracker.com/id/1032783
http://www.securityfocus.com/bid/75541
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.mozilla.org/security/announce/2015/mfsa2015-68.html