1566685 - In dark mode, prevent bright flash when moving tab into a new window, or when closing a window

Status: NEW

(Core :: Graphics, enhancement, P3)

Description

[Darkspirit]

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

Improvement suggestion via Reddit:
https://www.reddit.com/r/firefox/comments/ce43b7/any_way_to_fix_the_white_flash_when_opening_a_new/

Environment

• Win10 set to dark mode
• Firefox dark theme
• browser.in-content.dark-mode;true
• ui.systemUsesDarkTheme;1

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

Chrome has the same problem when opening a window. But when closing a window, at least its content area is black.

Comment 2

[u652140]

bug 1600496

Comment 3

[u652140]

The bug still exists on release 75.0

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/75.0