I love this extension!!

Makes the browser feel modern. Love it.

does not work with ao3 themes :(

This should be shipped with firefox out of the box tbh

требует доступ ко ВСЕМ данным сайтов, что подозрительно, а так работает как заявлено.

Many weisides recommands another add-on to change browser frame color like Vivaldi, but I think this one is better.

Nunca vi nada parecido! Excelente forma de personalização do navegador, muito fluido e esteticamente agradável.