Hm yeah, we need to fix the detection as part of instantiation, which happens in the engine. I'm adding a "Try anyway" button for you in the meantime, it should be up in a couple of minutes.

We've just tested internally with Firefox nightly with WebGPU enabled (you should also be able to test this with the fix Fredrik just pushed out), but it doesn't seem to work - Firefox's WebGPU implementation doesn't implement enough of the spec [0] to be able to run our renderer.

As I mentioned in another comment, we're considering adding a fallback renderer, but our hope is that Firefox will be able to complete its implementation sooner rather than later - as a Firefox user, I would much rather use it than Chrome myself!

[0]: https://github.com/gpuweb/gpuweb/wiki/Implementation-Status#...