[wiab4355]

Thanks, that sort of worked. My file manager is something called Caja and it doesn't have a URL bar. But it does have a sort of network places link and when i clicked on that, there was a libreelec icon! Clicked on that, entered my username and password and, by golly, I was in! Streaming is almost impossible (unless I want to watch a slideshow), but copying a video file to my desktop works (and hopefully watching later will also work).
Thanks again for the pointers.