The privileged content process animates scollbars while in the background
Categories
(Firefox :: New Tab Page, defect)
Tracking
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People
(Reporter: florian, Unassigned, NeedInfo)
References
(Depends on 1 open bug, Blocks 2 open bugs)
Details
(Keywords: perf)
See this profile: https://share.firefox.dev/49hHSca
There are at least 6 opacity transitions on scrollbar elements. The process priority is "background".
In the screenshot track you can see that the about:newtab page was not visible (I just profiled loading the wikipedia home page).
The root cause is probably bug 1548683, but I wonder if there might be additional things we might do to avoid image animations. Especially as even opening the new tab page is not enough to actually see the animation, as the image is below the fold.
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Comment 1•2 years ago
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The severity field is not set for this bug.
:amy, could you have a look please?
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Comment 2•6 days ago
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Redirect a needinfo that is pending on an inactive user to the triage owner.
:thecount, since the bug doesn't have a severity set, could you please set the severity or close the bug?
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Description
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