[duskwuff]

> Well that's true of SFTP, browsers don't support that protocol but I think they should.

They should not. SSH -- which is used as the transport for SFTP -- is a rather large and complex protocol. Implementing it in browsers would significantly increase their network attack surface, while providing few (if any) new capabilities. (What does SFTP provide to the browser that isn't possible with HTTPS?)

> FTPS is common now, most people don't even realize they're using it.

Can you give an example? There are no major web browsers which currently support FTPS -- it is not present in Chrome, Mozilla, nor Internet Explorer.