Some advise on the basis of FAQs and experiences of the past years:
(Due to safety reasons, the password is not included in the URL.
A good browser will ask for it anyhow.)
The Firefox is not able to upload to an FTP server, so you are to use an
FTP client. If you are a Windows user, e.g. the TotalCmd is OK.
WARNING Some browsers doesn't respect the standard protocols. (Q.: Which one?)
Those one, for examle, can not handle the "331" code ("Password required",
in deatils, see
RFC640.)
of FTP servers and will indicate an "Authentication error" rather than calling
the login dialog box. To solve the above problem, see chapter 3.1 of
RFC1738