The drag-and-drop implementation in Mozilla Firefox 4.x through 13.0 and Firefox ESR 10.x before 10.0.6 allows remote attackers to spoof the address bar by canceling a page load.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16970
https://bugzilla.mozilla.org/show_bug.cgi?id=725611
https://bugzilla.mozilla.org/show_bug.cgi?id=724599
https://bugzilla.mozilla.org/show_bug.cgi?id=724247
http://www.ubuntu.com/usn/USN-1509-2
http://www.ubuntu.com/usn/USN-1509-1
http://www.securitytracker.com/id?1027256
http://www.mozilla.org/security/announce/2012/mfsa2012-43.html
http://www.debian.org/security/2012/dsa-2528
http://www.debian.org/security/2012/dsa-2514
http://secunia.com/advisories/49992
http://secunia.com/advisories/49979
http://secunia.com/advisories/49972
http://secunia.com/advisories/49965
http://secunia.com/advisories/49964
http://rhn.redhat.com/errata/RHSA-2012-1088.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html