I don’t know how uBlock handles CSS rules, but you can just add your stylesheets or add your JavaScript to the page, it should be enough and as performant as po

I don’t know how uBlock handles CSS rules, but you can just add your stylesheets or add your JavaScript to the page, it should be enough and as performant as possible. AFAIK there are esoteric features like DNS filtering which is not possible with declarative API. But I’m not sure if it’s used widely, I never saw it.