Why doesn't firefox support the css animation-timeline?

[awund]

I'd like to understand, why even Edge supports it, but Firefox can't stay my favourite browser.

Thanks for any insight to this matter 🙂

Cheers,
Awund

edit: found out that firefox seems to desperately needs the animation-duration for it to work.

edit2: however, animation-range-start and -end seem not to work

[Honza]

We are supporting this feature, the standard position of scroll-driven animation is positive: https://github.com/mozilla/standards-positions/issues/347

animation-timeline is behind a preference of scroll-driven animation (https://searchfox.org/mozilla-central/rev/e4a222169f9f9b1d8f2f49e4066585b6b9c4dc58/servo/components/...).

The development is still in progress (so not enabled by default).