1758065 - White flash when opening a new window by moving a tab out of its window in dark mode

Status: NEW

(Core :: Graphics, defect, P3)

Description

[raj patel]

Attachment: 2019-07-17 03-15-05.mp4

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36

Steps to reproduce:

Preventing bright flash when moving tab into a new window, or when closing a window in dark window

Actual results:

White flash when opening a new window by moving a tab out of its window.
closing a window.
starting Firefox.
It's the same with and without WebRender. However when opened via app menu, new windows fade in softly.

Expected results:

It would be nice if the window could be (at least) black in this case.

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 4

[Alin Ilea, Desktop QA]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0

Reproduced the issue in release 97, beta 98 and the latest nightly 99.0a1 (2022-03-07) using Windows 10. Changing the component since it doesn't seem to be related to WebRender. If this is not the correct component, feel free to change it to a more appropriate one.
Most likely a duplicate of bug 1566685, but that's a bit old and there are no new updates in it.

This is not a regression, at least not a recent one since there is a bug with the same issue logged for Fx68.

Thanks for the report.

Comment 5

[Timothy Nikkel (:tnikkel)]

This might be in layout or theme land. cc'ing Emilio because I've seen him land some fixes for white flashes in dark mode recently.

Comment 6

[Masatoshi Kimura [:emk]]

This is also reproducible with Ctrl+Shift+N (restore recently closed window) or opening a maximized window.

Comment 7

[mkshadoff]

This is currently reproducible in version 124.0.2 of Firefox