Versions of Firefox earlier than 3.6.24 are potentially affected by multiple vulnerabilities :
Binary data 9377.prm
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3647
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3648
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3650
www.mozilla.org/security/announce/2011/mfsa2011-46.html
www.mozilla.org/security/announce/2011/mfsa2011-47.html
www.mozilla.org/security/announce/2011/mfsa2011-49.html
www.mozilla.org/en-US/security/known-vulnerabilities/firefox-3.6/#firefox3.6.24