I'm getting consistent high CPU usage (full 1 core of Turion X2 Ultra) with the following site: http://www.csszengarden.com/?cssfile=/202/202.css&page=1 The bug only happens when the page is showing. The page is completely static, seems to me no animations are in it. This high CPU usage makes the browser respond sluggishly, with about 0.5s-1s delays on actions. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b3pre) Gecko/20100808 Firefox/4.0b3pre Hg changeset of Firefox: ab7618bb5c48 Hg changeset of Xulrunner: 0482cbddd7e1
Not seeing excessive cpu usage from Mozilla's build - Mozilla/5.0 (X11; Linux x86_64; rv:2.0b4pre) Gecko/20100808 Minefield/4.0b4pre
Radosław, do you still see this issue?
Whiteboard: [closeme 2017-08-15]
Not anymore in new nightlies or 53.0, they're fine.
Status: NEW → RESOLVED
Last Resolved: 11 months ago
Resolution: --- → WORKSFORME
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