MEDIUM
Mozilla Firefox 2.0.0.1 allows remote attackers to bypass the Phishing Protection mechanism by adding certain characters to the end of the domain name, as demonstrated by the "." and "/" characters, which is not caught by the Phishing List blacklist filter.
http://archives.neohapsis.com/archives/fulldisclosure/2007-04/0516.html
http://kaneda.bohater.net/security/20070111-firefox_2.0.0.1_bypass_phishing_protection.php
http://www.securityfocus.com/archive/1/459265/100/0/threaded