Another Firefox (nightly at that) + noscript user here, running stretch/sid and not having any crashes. I don't have the beast of a machine that you do, so I usually have <20 tabs open at a time, but I also run them in Firefox Containers, which makes them a little more resource hungry.
I suggest figuring out the crash conditions and submitting bug reports to Mozilla to get them figured out. Ever since FF ~50 or so, it's been rock solid for me, and the containers to keep tracking cookies contained is wonderful.
-jason