this is no longer the extension for this addon it is not called stylus for firefox cause i tried installing a them from stylish main page and it installed to that extension on my firefox browser so i reccomend picking that extension up if you wanna continue using it this is the link for that extension https://addons.mozilla.org/en-US/firefox/addon/styl-us/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search