The jar protocol handler in Mozilla Firefox before 2.0.0.10 and SeaMonkey before 1.1.7 does not update the origin domain when retrieving the inner URL parameter yields an HTTP redirect, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a jar: URI, a different vulnerability than CVE-2007-5947.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6033
https://bugzilla.mozilla.org/show_bug.cgi?id=403331
https://bugzilla.mozilla.org/show_bug.cgi?id=369814
http://www.vupen.com/english/advisories/2008/0083
http://www.mozilla.org/security/announce/2007/mfsa2007-37.html
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742