Open Bug 1736324 Opened 3 years ago Updated 3 years ago

Disabling a theme when in OS dark mode causes a white flicker on toolbar

Categories

(Firefox :: Theme, defect)

Product:
Firefox
Component:
Theme
Platform:
Desktop
Windows
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox94 --- affected
firefox95 --- affected

People

(Reporter: cbaica, Unassigned)

Details

Attachments

(1 file)

flicker bug on theme disable
3.04 MB, video/mp4
Details

Affected versions

  • Fx94.0b7
  • Fx95.0a1

Affected platforms

  • Windows 10
  • macOS 10.15

Steps to reproduce

  1. Launch Firefox.
  2. Go to about:addons -> Themes section.
  3. Enable a Colorway theme.
  4. Click the disable button.

Expected result

  • Firefox reverts back to the default theme without issues.

Actual result

  • There is a white flicker/transition on toolbar and tab bar before switching to the default theme.

Regression range

  • This is not a regression.

Additional notes

  • The flicker is visible on the active tab in nightly and on the entire tab bar in beta, when the change is made.
  • The issue does not occur in Ubuntu 20.04
  • Issue might also be related to 1735110.
Blocks: 1731038, 1725467
Has STR: --- → yes

This problem is not unique to monochromatic themes. All themes do this, unfortunately.

No longer blocks: 1725467, 1731038
Summary: [Monochromatic Themes] Disabling any colorway theme causes a white flicker on toolbar → Disabling a theme when in OS dark mode causes a white flicker on toolbar
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