1977425 - Custom avatar images with transparent backgrounds are not consistently rendered

Status: RESOLVED WONTFIX

(Toolkit :: Startup and Profile System, defect)

Description

[Simona Badau, Desktop Test Engineering]

Attachment: Screenshot with the custom image avatars

Found in

• Nightly 142.0a1

Affected versions

• Nightly 142.0a1

Tested platforms

• Affected platforms: Windows 11, Ubuntu 25.04, macOS 15

Preconditions

• Enable the new avatar picker by setting browser.profiles.updated-avatar-selector to 'true' in about:config.

Steps to reproduce

1. Navigate to about:editprofile.
2. Open the avatar picker by clicking on Edit.
3. Click on the Custom tab, upload an image with a transparent background and Save it.
4. Observe how the custom avatar is displayed in all locations, including the badges in the taskbar/dock.

Expected result

• The custom image avatar should be displayed with a consistent, solid background (e.g. similar to icon avatars).

Actual result

• The custom image avatar shows inconsistent backgrounds:
  -- In the profile menu, it has a half-colored background based on the set theme.
  -- In system-level badges on macOS and Windows, the image is shown with no background, making it appear visually broken or unclear.

Regression range

• This is not a regression, it's introduced with the new avatar picker.

Comment 1

[Susmitha Burra]

Working as expected.