(17C67b) System crash when loading website in Firefox

Originator:jm
Number:rdar://35488859 Date Originated:11 Nov 2017
Status:Open Resolved:
Product:macOS + SDK Product Version:10.13.2 Beta (17C67b)
Classification:Crash/Hang/Data Loss Reproducible:Always
 
Summary:
When loading okcupid.com in FirefoxDeveloperEdition 58.0b1, macOS will crash and auto-reboot.

Steps to Reproduce:
1. Open FirefoxDeveloperEdition 58.0b1.
2. Navigate to okcupid.com

Expected Results:
The website should load.

Actual Results:
macOS crashes and shows the "blue screen".

Version/Build:
macOS 10.13.2 Beta (17C67b)

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