This sorta reduces the need for the [Xplr] function, except for the fact that you can't create "new documents" in a patient's folder from within the browser. Many users might not be doing that anyway.
Some good old FireFox hacking could add any feature anyway !
Possibly using FireFox for browsing but add an [Explore here in Windows Explorer] button to FF would be helpful. Should be quite easy to do.
As well, I just check it, copying a FF url of a folder, ie. file:///p:/a ... brings up the right folder in Windows explorer, ie. P:\a.