Ironically rustfs.com is currently failing to load on Firefox, with 'Uncaught TypeError: can't access property "enable", s is null'. They shoulda used a statically checked language for their website...
It seems like the issue may be that I have WebGL disabled. The console includes messages like "Failed to create WebGL context: WebGL creation failed:
* AllowWebgl2:false restricts context creation on this system."
Oh is it the website that's failing? I kind of assumed it was the web UI for the software. Workarounds sort of kind of make sense there.. Maybe.. But the website. That's bad.