Tab crashes in firefox nightly

[come-maiz]

I was trying the demo site, and after a few minutes, the browser tab crashed:

I'm testing this on ubuntu 17.10, with firefox nightly 58.0a1 (2017-11-05) (64-bit)

[etam]

I have firefox 56 on openSUSE and this page made it unresponsive. I had to kill it :(