Mozilla Firefox before 3.0.14 does not properly implement certain dialogs associated with the (1) pkcs11.addmodule and (2) pkcs11.deletemodule operations, which makes it easier for remote attackers to trick a user into installing or removing an arbitrary PKCS11 module.
secunia.com/advisories/36669
secunia.com/advisories/36670
secunia.com/advisories/36671
secunia.com/advisories/36692
secunia.com/advisories/37098
www.debian.org/security/2009/dsa-1885
www.mozilla.org/security/announce/2009/mfsa2009-48.html
www.novell.com/linux/security/advisories/2009_48_firefox.html
www.redhat.com/support/errata/RHSA-2009-1430.html
www.redhat.com/support/errata/RHSA-2009-1431.html
www.redhat.com/support/errata/RHSA-2009-1432.html
www.redhat.com/support/errata/RHSA-2010-0153.html
www.redhat.com/support/errata/RHSA-2010-0154.html
www.securityfocus.com/bid/36343
www.securitytracker.com/id?1022877
www.vupen.com/english/advisories/2010/0650
bugzilla.mozilla.org/show_bug.cgi?id=326628
bugzilla.mozilla.org/show_bug.cgi?id=509413
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6140
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9306