URL: https://www.google.com/doodles/doodle-snow-games-day-8-lunar-new-year

Browser / Version: Firefox 60.0
Operating System: Windows 10
Tested Another Browser: Yes

Problem type: Something else
Description: Doodle stutters while playing; uses 70-80% GPU on Intel 620. Works fine in Chrome.
Steps to Reproduce:

1. Click the play button on the doodle.

gfx.webrender.all: false
gfx.webrender.blob-images: 1
gfx.webrender.enabled: false
image.mem.shared: 2

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