2036316 - Firefox 150 regression: context menus, extension menus and other overlays not working

Status: RESOLVED DUPLICATE of bug 2026258

(Core :: Widget: Gtk, defect)

Description

[luis.pabon]

Attachment: recording.mp4

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0

Steps to reproduce:

Update to Firefox 150

Actual results:

When a firefox window is on the center-position display, context menus, extension menus, other popup surfaces like opening a folder on the bookmarks bar either don't open or flicker. The behaviour is subtly different on the initial firefox windows and on subsequent ones: flickering on the initial window and on subsequent windows some menus don't open at all.

If I move the firefox window to either of my side monitors, it works fine.

Firefox 149 worked fine.

Expected results:

Ubuntu 25.10
Sway 1.11
Firefox 150.0.1~build1 (from https://packages.mozilla.org/apt)

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.