Rated 5 out of 5 stars

deur Kuroi_Mato_O op Nov. 27, 2017 ·

Great addon, but not compatible with ff 57 :(

upd: sadly, stylus can't use external editors pretty much like every other addon exept stylish-custom.

deur ChoGGi (ontwikkelaar) op Nov. 27, 2017 ·

:(
You're going to have to stick with Stylus, or use Palemoon.