Can you please try this: 1) open about:config 2) type 'webrender' in the search field 3) find the pref gfx.webrender.force-disabled and flip it to false 4) restart, and use the browser for a bit. See if the problem goes away. 5) Post back with what you find! Thanks!
Bug 1696590 Comment 15 Edit History
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Sorry we couldn't help.