Firefox before 1.0.5 allows remote attackers to steal information and possibly execute arbitrary code by using standalone applications such as Flash and QuickTime to open a javascript: URL, which is run in the context of the previous page, and may lead to code execution if the standalone application loads a privileged chrome: URL.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1172
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11334
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1073
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100006
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=160202
https://bugzilla.mozilla.org/show_bug.cgi?id=298255
http://www.vupen.com/english/advisories/2005/1075
http://www.securityfocus.com/bid/14242
http://www.redhat.com/support/errata/RHSA-2005-587.html
http://www.redhat.com/support/errata/RHSA-2005-586.html
http://www.novell.com/linux/security/advisories/2005_45_mozilla.html
http://www.novell.com/linux/security/advisories/2005_18_sr.html
http://www.mozilla.org/security/announce/mfsa2005-53.html
http://www.ciac.org/ciac/bulletins/p-252.shtml