Example, where I have 3 connections, for 3 different websites.
and in the browser, all of them are on the same domains.
The rest is selfexplaining.
A way of doing this, was to either integrate WinSCP into the browser, or even easier, allow us from a CLI-sort of way, to change the active session in WinSCP (that's already opened) - And then let other developers do the addons. I'd be happy to make one for Firefox anyway.
Hopefully I got my idea writting down right.