The remote host has a web browser installed that is vulnerable to multiple attack vectors.
Versions of Firefox 3.6 earlier than 3.6.23 are potentially affected by the following security issues :
Binary data 801241.prm
.mozilla.org/security/announce/2011/mfsa2011-36.html
.mozilla.org/security/announce/2011/mfsa2011-37.html
.mozilla.org/security/announce/2011/mfsa2011-38.html
.mozilla.org/security/announce/2011/mfsa2011-39.html
.mozilla.org/security/announce/2011/mfsa2011-40.html
.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.23
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2372
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2995
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2996
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2999
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3000