All is well, but there is one but a drawback.
I noticed that when I go to the page youtube it freezes, it can get wrong that the page does not respond.
waiting for fixation

Please enable Firefox Sync to transfer styles between computers :)

Don't know why i did not switch much earlier to Stylus (WebExt) :-)

Since brandnew Stylish version 3.0.1 (update to WebExt) is totally broken right now i encountered Stylus and it's way better than Stylish and has some very good options to handle styles.

If you follow the instructions to convert your styles to Stylus everything will work fine.
Some minus - if you change the values of an existing style you use on userstyles there will be no changes made when you klick "update style". only uninstall and reinstall with new values works.
for this reason 4 stars.
would be nice if the develeoper would change this.

It would be really nice if there's a way to disable the editor's section views and just see the css script in one code block. Toggling the UI layout doesn't seem to make a difference.

Great work, thanks.
Do the scripts get sync'ed by FIrefox?
If not can we have an option please?

It works very well for basic needs with one exception. Styles on side panel pages do not work.

Everything works likes stylish, but there is one small problem that will be hopefully fixed soon. Styles for websites can be installed normally, but styles for Firefox' about:home refuse to install itself.

Options to configure the addon do not appear in the "three dot menu" nor are there any options in addon management in the android version of Firefox.

The only thing missing imho is All-In-One Sidebar integration, and it will be perfect.

Except for the problem in the title, this seems to work perfectly! Loved this on Chrome as well, glad to see it here.

Stylus arrive enfin sur Firefox, ce fork de Stylish tombe car l'addon d'origine ne progresse plus sur Firefox et lorsqu'on voit ce que devient Stylish sur Chrome avec le nouveau développeur, je n'ai pas trop envie qu'il arrive la même chose sur Firefox (addon dysfonctionnel, vente de donnée personnelle à une société de tracking). Stylus a encore des problèmes de jeunesse sur Firefox, on ne peut pas exporter les données par exemple. Mais avec le temps et les futures mises à jour, cet addon aura la même qualité que sous Chrome et sera une excellente alternative à stylish.