My favorite of all is this one. Dark so you can see your tabs. Subtle animation so as not to overload your eyes. Light and dark contrasts. Just lovely!

Lovely looks, easy to use and see all the functions of Firefox. One con though, after a while the animations stops and the butterflies stay static forever after that.

Шикарно! Стильно! Красиво! Не напрягает! Анимированная тема! Жаль - не работает на Firefox Quantum!!! (анимация отключается)

It's simple, but the movement of the butterflies wings adds an elegant feel to it.

Love the Butterflies

im no newbie but this is the first animated theme ive seen. ( maybe am newbie ) anyway really awsome. like to see more. and thanks for bein my first. : )

Dark theme always awesome . The orange butterfly makes it pop