It cannot even change the background colour for New tab. :-( Come on Firefox devs, not all users know how to use .css, including me. I hate the default white background and i cannot change it. i have been searching for an extension to do this for almost two hours, but none has worked out. Please, devs, develop dark background for new tabs, and remove the white flash.

muy buena

good

Muito bom, pena que estão limitando o número de estilos que podemos ter gratuitamente, fora isso, prefiro usar userstyles convertidos em userscripts...

I love this so much. It saves my eyes from the radiation the WWW gives. I just wish there were more people using it!