Hi I'm using version 10.1.5.5 (updated today - December 5th). It seems script heavy websites cause FireFox to crash completely with the plug-in enabled. I tried visiting the same website with NoScript disabled and the website loaded with out crashing.
I hope that info is helpful!
10.1.5.5 crashes FireFox
10.1.5.5 crashes FireFox
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:57.0) Gecko/20100101 Firefox/57.0