Closed Bug 1258045 Opened 9 years ago Closed 9 years ago

Jittery scroll with youtube user video header snapping

Categories

(Core :: Panning and Zooming, defect)

Product:
Core
Component:
Panning and Zooming
Version:
48 Branch
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1257641
Tracking Flags:
Tracking Status
firefox47 --- unaffected
firefox48 --- fixed

People

(Reporter: ehsan.akhgari, Unassigned)

References

Details

(Keywords: regression, Whiteboard: [gfx-noted])

See <https://www.youtube.com/user/kexpradio/videos> for example. They have some kind of snapping effect when you scroll past the header area including the picture, title and tab items. In Chrome, the effect is completely smooth but in Firefox and incidentally Safari there is a jittery effect where it looks like the page's scroll position snaps to another value and then back to the value that you would expect. This might be a youtube bug, but worth investigating.
Kats - this doesn't appear to be APZ related (I can reproduce with it enabled or disabled), but is it still something you'd know about?
Hmm, that's strange, I tried it with today's nightly, and it looked better with APZ disabled.
Regression from bug 1253860, I think. Setting paint-skipping to off fixes it. We should implement bug 1257641 to fix it.
Blocks: 1253860
status-firefox47: --- → unaffected
status-firefox48: --- → affected
Depends on: 1257641
Keywords: regression
Whiteboard: [gfx-noted]
Version: unspecified → 48 Branch
This should be fixed by bug 1257641.
Status: NEW → RESOLVED
Closed: 9 years ago
status-firefox48: affected → fixed
Resolution: --- → DUPLICATE
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