Who is this user, who needs an FTP client, but only sometimes, and doesn't know where to find one?
And yes, if I have the URL I can use curl to download the file from FTP, even if downloading it from the browser would be easier. But most of the times there is a link to the server directory, with multiple files to select. Yes I can use Windows explorer and connect to the FTP server and browse it, but to be fair, or just open Internet Explorer and past the FTP link.