It appears that Mozilla Firefox version 2.0.0.11 suffers from an information spoofing attack via the basic authentication dialog box.
47f59d9aae591cbc74235ab2ddb5b49260a968d8b63446411d277d8f679abdb1
Summary
Mozilla Firefox allows spoofing the information presented in the basic
authentication dialog box. This can allow an attacker to conduct phishing
attacks, by tricking the user to believe that the authentication dialog box
is from a trusted website.
Affected versions
Mozilla Firefox v2.0.0.11.
Prior versions and other Mozilla products may also be affected.
http://aviv.raffon.net/2008/01/02/YetAnotherDialogSpoofingFirefoxBasicAuthen
tication.aspx