[x1m4]

Thanks for the report! I've tried to tackle this issue multiple times now, but found that for some reason on MacOS M1, FireFox's WebGL implementation is severely broken on multiple features that the WebGL specification guarantees to be working. I can't test if this is just for the M1 or also other Mac devices, but Chrome definitely works!

[isomorphic]

I get "WebGL is not available" on an Intel Mac Pro, macOS 12.5.1, Firefox Developer 105.0b8. ("Intel Mac Pro" is redundant at the time of this writing, but hopefully not for long!)

On the same Mac, I get "Your browser is not supported" for Safari 15.6.1, and Safari Technology Preview R152 (Safari 16.0) with "WebGL 2.0" and "WebGL Draft Extensions" enabled under "Experimental Features."

Using Ungoogled Chromium 105.0.5195.102 (I refuse to use Chrome), the site actually seems to leave the GPU in a messed-up state, going on to cause severe rendering problems in other applications. I'm not sure if this is a Chromium bug or a macOS bug or both.

[danparsonson]

Just to add that I'm seeing the same error on Fedora 36 with FF 103.0.2 64-bit

[x1m4]

Does Chrome work for you?

[ceearrbee]

I am on Fedora 36 and it doesn't run in Firefox either, however it does run in Chrome.

[danparsonson]

Don't have it installed but if I can find time I'll give it a go

[eganist]

fwiw, it worked on Firefox for Windows.