Mozilla Firefox before 35.0 on Windows allows remote attackers to bypass the Gecko Media Plugin (GMP) sandbox protection mechanism by leveraging access to the GMP process, as demonstrated by the OpenH264 plugin's process.
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00002.html
http://secunia.com/advisories/62253
http://secunia.com/advisories/62446
http://www.mozilla.org/security/announce/2014/mfsa2015-07.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securityfocus.com/bid/72043
http://www.securitytracker.com/id/1031533