Почему она стала черной? Верните светлую тему Snoopy!!!

No longer works with the "new" (GARBAGE) Firefox 58.0.1

I've been using Firefox for decades and hate to think about replacing it, but truth told, I'm looking for a good replacement for this new garbage.

Ele não funciona em animação!

Worked ok when first downloaded but having restarted the laptop it now just sits at the top of the screen ...dead