firefox is vulnerable to cross-site scripting (XSS). The vulnerability exists as it did not load manually opened, blocked popups in the right domain context, which could lead to cross-site scripting attacks. In order to exploit this issue an attacker would need to find a site which would frame their malicious page and convince the user to manually open a blocked popup.
secunia.com/advisories/21949
secunia.com/advisories/21950
secunia.com/advisories/22001
secunia.com/advisories/22025
secunia.com/advisories/22056
secunia.com/advisories/22066
secunia.com/advisories/22195
secunia.com/advisories/22210
secunia.com/advisories/22422
secunia.com/advisories/24711
security.gentoo.org/glsa/glsa-200609-19.xml
securitytracker.com/id?1016849
support.avaya.com/elmodocs2/security/ASA-2006-224.htm
www.mandriva.com/security/advisories?name=MDKSA-2006:168
www.mozilla.org/security/announce/2006/mfsa2006-62.html
www.novell.com/linux/security/advisories/2006_54_mozilla.html
www.redhat.com/security/updates/classification/#critical
www.redhat.com/support/errata/RHSA-2006-0675.html
www.securityfocus.com/archive/1/446140/100/0/threaded
www.securityfocus.com/bid/20042
www.ubuntu.com/usn/usn-351-1
www.ubuntu.com/usn/usn-354-1
www.vupen.com/english/advisories/2006/3748
www.vupen.com/english/advisories/2007/1198
www.vupen.com/english/advisories/2008/0083
www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00771742
access.redhat.com/errata/RHSA-2006:0675
exchange.xforce.ibmcloud.com/vulnerabilities/28957
issues.rpath.com/browse/RPL-640
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10650