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This extension is the perfect solution for editing and saving the edited CSS styles of any visited webpage. It is easy to use. It allows to edit styles with help of forms or manually edit the CSS code. And after that, the rules are saved and applied to the edited webpage each time it is loaded.

Great™ — This has worked really well for me for years now, and it continues to be improved. There are few things more empowering than editing websites beyond what the original designers intended. Thank you!

So happy to see this finally getting Firefox support. Was using it for a while in Chrome and now while I'am migrating to Firefox happy to see it here as well. Visual editor is amazing.

interesting alternative to Stylus