The problem are not the credentials. FileZilla can accept credentials from an URL, if you paste the URL to the "Host" box on FileZilla toolbar.
The problem is that FileZilla cannot accept a file name in the URL. Only an initial path.
So if you paste the following URL:
ftp://ftp-pub:[email protected]/Pub/schooldesk/
FileZilla will connect to that server and navigate to the /Pub/schooldesk/
.
But you will have to locate the file (schooldesk-20171025.iso
) and initiate the download manually.
You will have to use another FTP client, if you need to do everything in one go.
There are some command-line clients that can accept file URL.
If you are looking for GUI client, there will be less options.
My WinSCP FTP client can accept full file URL on its command-line to initiate a GUI download:
winscp ftp://ftp-pub:[email protected]/Pub/schooldesk/schooldesk-20171025.iso