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Firefox 147 just landed & it's pretty huge in terms of web features: 🎉 CSS anchor positioning 🎉 The navigation API 🎉 View transition types 🎉 Brotli support in Compression/DecompressionStream 🎉 CSS module imports And more! https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/147

Testing one of my demos and it looks like it's not working well 🤔 bugs or not all the features of Anchor Positioning are available? css-tip.com/tooltip-anch...

Can you try in nightly and let me know if it works there? If not, can you let me know the problem you're seeing?

Better on nighty, the position of the tooltip is good but not the tail. I am defining a margin-top on the element that should flip when the position change using flip-block (this part works fine). Then a pseudo element in inheriting that margin (this part is not working fine).

Here is another demo not working fine: css-tip.com/tooltip-anch... It has the same margin issue as the previous one but the position is not good in Nighty (it's good on the stable version). In Nighty the flip-start is not triggered (we get an overflow instead)

There are two demos on this page. Which one should I be looking at?

You can focus on the first one but both are almost identical and have the same issues. For reference here are two recordings (with their respective links) showing how the behavior should be: - bsky.app/profile/css-... - bsky.app/profile/css-...

Cool. I'll file these. Have you filed anything with Safari for this? They don't have the margin issue, but they do have the position-flip issue.

No, I don't have access to Safari to test ...

I've filed bugzilla.mozilla.org/show_bug.cgi... and bugzilla.mozilla.org/show_bug.cgi.... Thanks!