2058257 - Menu focus-background gets awkwardly clipped by Nova's rounded menu-popup-corners, for first/last entry in the menu

Status: RESOLVED DUPLICATE of bug 2057169

(Firefox :: Theme, defect)

Description

[Daniel Holbert [:dholbert]]

Attachment: screenshot of bug affecting the bugzilla 'needinfo' menu-popup

STR:

1. Open a <select> menu in Firefox Nightly, or one of the File|Edit|View|etc. app menus (on Linux and I assume Windows)
2. Ensure the topmost entry in the menu is focused (using arrow keys or mouse hover). Look at background for that item.

ACTUAL RESULTS:
The focus-background is a rectangle with slightly rounded corners, and its top-left and top-right corners are clipped by the much-more-severely-rounded edge of the menu-popup. So you can't see the whole focus-background, and it looks a bit asymmetrical/glitchy.

EXPECTED RESULTS:
Should be able to see the whole focus background. Probably it should be rounder so that it doesn't protrude from the popup?

NOTE: several menus don't have this problem, because they use a focus-background with completely rounded sides, which don't protrude from the menu. Here are those "good" menus that I've noticed:

• Firefox hamburger menu
• The tabstrip v choose-a-tab menu
• The autocomplete menu (e.g. the one you get in https://bugzilla.mozilla.org/attachment.cgi?id=9603497 )

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: screenshot of bug affecting the Tools menu in Firefox's menu toolbar

Comment 2

[Daniel Holbert [:dholbert]]

I'm using Nightly 155.0a1 (2026-07-27) (64-bit) on Ubuntu 26.04

Comment 3

[Daniel Holbert [:dholbert]]

Attachment: screenshot of "good/expected" behvior (more rounded focus-background) in Hamburger menu