[Bug] Position fixed element is flickering when user is scrolling
Categories
(Core :: Panning and Zooming, defect)
Tracking
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People
(Reporter: kbrosnan, Unassigned)
Details
From github: https://github.com/mozilla-mobile/fenix/issues/17357.
Steps to reproduce
- Go to https://allegro.pl/listing?string=Lego
- Scroll down (do it rather quickly)
- Observer bottom bar flickering
Expected behavior
Position: fixed element shouldn't flicker while page is scrolling
Actual behavior
Position: fixed element is flickering
See: videoDevice information
- Android device: Samsung Galaxy J7 2017
- Fenix version: 84.1.3 and todays (07.01.2021) nightly
84.1.3 runs on opengl and nightly runs on webrender, both show same issue.
Change performed by the Move to Bugzilla add-on.
Comment 1•4 years ago
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Does this kind of flicker happen on every sites using position:fixed elements for footer? If it's not, I'd bet the site in question is doing something by script.
Hi, author of github issue here.
I see this on other sites as well, for example here:
https://discussions.ubisoft.com/topic/78181/ac-valhalla-crashes-every-15-30-minutes/148?page=10&lang=en-US
Hi, the issue no longer reproduces on firefox android 84.1.4 (which runs on opengl) but reproduces on nightly (which runs on web render). This is a Mali T gpu device.
Sorry my mistake, the issue still reproduces but only when I enable dynamic address bar. If I have address bar that does not hide when I scroll down the issue doesn't exist.
Maybe fenix is doing something funny like reporting different window height many times per second while scrolling?
Updated•4 years ago
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Comment 5•2 years ago
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Are you still experiencing this issue? I suspect this was fixed by bug 1730998.
Issue no longer reproduces, sorry for the delay :(
Comment 7•9 months ago
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Thanks for confirming!
Moving to the correct component.
Comment 8•9 months ago
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Thanks for checking. Closing as WORKSFORME.
Description
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