It’s a generally good thing to know that browser support for browser features isn’t always quite a simple as yes or no. There can be sub-features involved as things evolve that roll out in browsers at different times. View Transitions is an example of that going on right now. There are “Same-Document View Transitions” supported in all browsers right now, but “Cross-Document View Transitions” are still missing Firefox support. And there are quite a few more related features beyond that! Bramus has a nice way to explore that.

