1741117 - Webrender scrolling not as smooth as OpenGL or Chrome

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect, P3)

Description

[sheelgautam995]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0

Actual results:

Ever since Webrender has been enabled for macOS, the two finger scrolling has never been smooth like it was on OpenGL.
This is most visible when scrolling on reddit pages. Even Chrome, which had laggy scrolling, is now more smooth than Firefox.

Comment 1

[sheelgautam995]

Attachment: about:support

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Graphics: WebRender' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Can you share a specific url that you see this on?

Comment 4

[sheelgautam995]

Yes,
https://www.reddit.com/r/firefox/
https://www.youtube.com/
https://www.livemint.com/

At first, I thought Ublock Origin might be causing this but I have the same extensions on Chrome. Sometimes Chrome also has a bit visual stutter but its not present to the same degree as Firefox.

Comment 5

[sheelgautam995]

It happens mostly on Websites which can "dynamically" load more content. I don't know how to put it more precisely. So maybe its JavaScript related as well ?

Comment 6

[Wayne Mery (:wsmwk)]

(In reply to sheelgautam995 from comment #5)

It happens mostly on Websites which can "dynamically" load more content. I don't know how to put it more precisely. So maybe its JavaScript related as well ?

Still reproduces?

Comment 7

[sheelgautam995]

Nope