firefox is vulnerable to arbitrary code execution. The vulnerability exists as it was found that the home page could be set to a “javascript:” link. If a user were tricked into setting such a home page by dragging a link to the home button, it could cause Firefox to repeatedly crash, eventually leading to arbitrary code execution with the privileges of the user running Firefox.
lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html
lists.opensuse.org/opensuse-security-announce/2012-03/msg00015.html
lists.opensuse.org/opensuse-updates/2012-03/msg00042.html
rhn.redhat.com/errata/RHSA-2012-0387.html
rhn.redhat.com/errata/RHSA-2012-0388.html
secunia.com/advisories/48359
secunia.com/advisories/48402
secunia.com/advisories/48414
secunia.com/advisories/48495
secunia.com/advisories/48496
secunia.com/advisories/48513
secunia.com/advisories/48553
secunia.com/advisories/48561
secunia.com/advisories/48624
secunia.com/advisories/48629
secunia.com/advisories/48823
secunia.com/advisories/48920
www.debian.org/security/2012/dsa-2433
www.debian.org/security/2012/dsa-2458
www.mandriva.com/security/advisories?name=MDVSA-2012:031
www.mandriva.com/security/advisories?name=MDVSA-2012:032
www.mozilla.org/security/announce/2012/mfsa2012-16.html
www.mozilla.org/security/known-vulnerabilities/firefoxESR.html
www.securityfocus.com/bid/52460
www.securitytracker.com/id?1026801
www.securitytracker.com/id?1026803
www.securitytracker.com/id?1026804
www.ubuntu.com/usn/USN-1400-1
www.ubuntu.com/usn/USN-1400-2
www.ubuntu.com/usn/USN-1400-3
www.ubuntu.com/usn/USN-1400-4
www.ubuntu.com/usn/USN-1400-5
www.ubuntu.com/usn/USN-1401-1
access.redhat.com/errata/RHSA-2012:0387
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=718203
bugzilla.mozilla.org/show_bug.cgi?id=719994
bugzilla.mozilla.org/show_bug.cgi?id=723808
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15122
rhn.redhat.com/errata/RHEA-2012-0327.html