Web browser support
Most common web browsers can retrieve files stored on FTP hosting servers, although they may not support protocol extensions such as FTPS. When an FTP-rather than HTTP-URL is supplied, the accessible contents of the remote server is presented in a manner similar to that used for other Web content. A full-featured FTP client can be run within Firefox in the form of an extension called FireFTP
FTP URL syntax is described in RFC1738, taking the form:
(The bracketed parts are optional.)
More details on specifying a user name and password may be found in the browsers' documentation, such as, for example, Firefox and Internet Explorer. By default, most web browsers use passive (PASV) mode, which more easily traverses end-user firewalls.