Alternatively, Firefox provides similar functionality built-in with userContent.css [1], which avoids needing a third-party extension at all. [1] https://super

Alternatively, Firefox provides similar functionality built-in with userContent.css [1], which avoids needing a third-party extension at all. [1] https://superuser.com/questions/318912/how-to-override-the-css-of-a-site-in-firefox-with-usercontent-css https://superuser.com/questions/318912/how-to-override-the-c...