maintenservice_installer.exe in the Maintenance Service Installer in Mozilla Firefox before 29.0 and Firefox ESR 24.x before 24.5 on Windows allows local users to gain privileges by placing a Trojan horse DLL file into a temporary directory at an unspecified point in the update process.
https://security.gentoo.org/glsa/201504-01
http://www.securitytracker.com/id/1030163
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.mozilla.org/security/announce/2014/mfsa2014-35.html
http://secunia.com/advisories/59866
http://seclists.org/fulldisclosure/2021/Mar/14
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132437.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/132332.html