Mozilla Foundation released Firefox 22.214.171.124 and 126.96.36.199 to fix a port scanning vulnerability in the FTP protocol. The vulnerability, discovered by a contributor at Bindshell.net, could allow an intruder to perform a basic port scan of a user's internal network.
According to a paper published on the Bindshell.net Web site, Firefox, Konquerer, and Opera Web browsers are vulnerable to such an exploit. Mozilla Foundation said that the new releases cause Firefox to ignore the alternate server addresses. Microsoft Internet Explorer (IE) 7.0 and 6.0 aren't subject to this particular vulnerability.