Used to be 5 stars. Then WebExtension completely hamstrung it. You can't install scripts manually anymore, and some scripts stopped working altogether.

A LITTLE CHILNESS

Works, but doesn't auto-update scripts.
Using Tampermonkey instead now and it works equally as good + I get updates for scripts.

https://addons.vaultpit.io/en-US/firefox/addon/tampermonkey/

2

Very minimalist, follows trendy designs almost to a point where it's a pain in the ass to use. Are there no options to speak of? What happened to blacklist?

This started it all but it hasn't kept up with other add-ons.

FF 56 Greasemonkey 4.1 - pure junk. The Greasemonkey category is gone from add-ons page which means no easy way to order and maintain a large group of scripts. Use version 3.17.