2058907 - [Nova] Window corners lose rounded styling after tiling/snapping the window

Status: RESOLVED INVALID

(Firefox :: Theme, defect)

Description

[Simona Badau, Desktop Test Engineering]

Attachment: Screen recording with the issue

Found in

• Nightly 155.0a1

Affected versions

• Nightly 155.0a1

Tested platforms

• Affected platforms: Windows 11 x64, Ubuntu 24.04
• Unaffected platforms: macOS 26.04

** Preconditions**

• Ensure Nova is enabled.

Steps to reproduce

1. Resize the window by dragging it from the Tabs bar and accept one of the OS suggestions.
2. Observe the corners of the window.

Expected result

• The window corners should remain rounded according to the Nova style.

Actual result

• The window corners become rectangular, and the rounded corners are lost. Please see the attached screen recording for more details.

Regression range

• Not a regression.

Additional notes

• Reproducible on Windows and Ubuntu. I could not reproduce the issue on macOS 26.

Comment 1

[Dão Gottwald [:dao]]

This is expected behavior when tiling windows.

Comment 2

[Stephen Thompson [:sthompson]]

macOS Tahoe+ behavior for tiled windows keeps the rounded corners on the windows, so the rounded corners are expected there. See bug 2059533 for upcoming Nova-specific changes to tiled/snapped windows on all platforms, but that patch won't change the corner shapes.