I had two download the older version of FF & reinstall then do the same with Greasemonkey & everything works again. Just turn updates off for now if you haven't updated to ver. 57 yet. I could probably fix a couple, but it would take some time which I don't have right now. I hate working with scripts though because it is to much like work.
If you want to use the newer version of FF just use tampermonkey, as stated above, and deal with what works & what doesn't work.