1980584 - Resizing the Selection UI in the Avatar picker scrolls the image unintentionally

Status: NEW

(Toolkit :: Startup and Profile System, defect)

Description

[Simona Badau, Desktop Test Engineering]

Attachment: Screen recording with the issue

Found in

• Firefox 142.0b5

Affected versions

• Firefox 142 beta
• Nightly 143.0a1

Tested platforms

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

Steps to reproduce
1 .Navigate to about:editprofile.
2. Open the avatar picker by clicking on Edit.
3. Upload an image that is either wider or taller to trigger the scrollbar.
4.Use the Tab key to focus the bottom-left dot, then press Shift + Right Arrow to enlarge the Selection UI.
5. Repeat this with all four dots and observe the image behavior while resizing.

Expected result

• The user should be able to maximize the Selection UI without the image scrolling.

Actual result

• When resizing the Selection UI, the image scrolls, even though the intention is to adjust only the selection area. Please see the screen recording for more details.

Regression range

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

Additional notes

• The scrolling behavior is seen also when enlarging the Selection UI via mouse.

Comment 1

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:mossop, could you have a look please?

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