I use them with Pale Moon, that I find faster than Firefox, and they are working.
The profile I load when I want to work with images I don't load all my extensions at the same time, the goal of this profile is to be able to load my images-related extension only when I need them.
Too many tabs? Too many bookmarks? Too many addons?
En plus des extensions de bases dans la collection "Mes Indispensables", quelques extensions intéressantes.