Thank you for this amazing add-on! I used Stylish years ago, but now it's a malware! I'm so happy that this fork Stylus exists as the good old community driven the other one used to be.

PRO TIP: Use the Developer Tools (Inspect Element) to change your styles interactively, then go to the Changes tab, click on Copy All Changes, then paste that into the Stylus editor!

Thank you!

very nice and fast

I modify font-family with Stylus.
I cannot live without this addon.

It used to work great but the functionality to search for existing themes for the site you're on takes a very long time to search, and for some sites just doesn't ever return any results.

Slow or unresponsive. It's a waste of time to even try to get it working

Cette extension est fantastique, exactement ce que je cherchais.

Great addon! It has made me happy for years. But now I have to migrate all my styles to Tampermonkey scripts due to the following reasons:
1. Firefox (both Windows and Android) cannot work normally with userstyles.org: lags all the time, almost impossible to edit styles on this web-site. These problems last for more than a month and I'm tired fighting them.
2. This addon works only partially in new Firefox for Android and Firefox Nightly: it applies styles well, but cannot edit them locally and cannot update them with new version from userstyles.org.

I will keep an eye on it. Maybe I'll be back later :)