CSS animate-timeline: view();

[web-devvy]

This is a newer CSS property, I used mozilla instead of chrome for live servers and noticed that this css property did not work on mozilla but does on chrome. I hope that mozilla will then support this cool css property

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[Jon]

This was shared with our teams and it is on our roadmap, though we don't have a clear timeline yet. When there are updates, we'll share them here. As always, please feel free to continue voting and add any feedback to show your support. 

[glob]

Thank you for the report - apologies for the delay in responding.

Without a specific example to verify I suspect we're talking about scroll-driven animations (rather than time-driven).

From Bug 1731112 - Support Devtools for scroll-driven animations it looks like we're waiting on the implementation of scroll-driven animations to be ready before we start adding support to DevTools.  The good news is I see recent activity on related implementation bugs, so this is moving forward.