Open Bug 1792194 Opened 1 year ago Updated 3 months ago

[Linux + KDE Plasma] Menu bar closes when I click on any menu while the mouse pointer is touching the screen edge


(Core :: Widget: Gtk, defect)

Firefox 104





(Reporter: bugseforuns, Unassigned)


(Blocks 1 open bug)



(1 file)

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:104.0) Gecko/20100101 Firefox/104.0

Steps to reproduce:

  1. use a linux distribution with KDE Plasma desktop environment
  2. run Firefox
  3. activate the menu bar by pressing alt key
  4. hover over any menu and make sure the mouse pointer is touching the screen edge
  5. click

Actual results:

menu bar closes

This bug was already reported on KDE bug tracker:

In the comment 3, KDE developer Nate Graham wrote:

As far as I can tell, this is a Firefox bug. With CSD mode and the menubar shown, the menu items don't actually touch the top-most pixel of the screen. So when you click that top-most pixel, you're clicking in an empty area of the menu toolbar, so it hides the menu toolbar--just like when you click in any other empty part of the menu toolbar.

Expected results:

clicked menu opens

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

Component: Untriaged → Web Painting
Product: Firefox → Core
Component: Web Painting → Widget: Gtk

Do you still see it?

Flags: needinfo?(bugseforuns)

The bug persists with Firefox 114 on Arch Linux running the Wayland session of KDE Plasma 5.27.5.

Flags: needinfo?(bugseforuns)
Flags: needinfo?(bugseforuns)
Attached video firefox_bug.webm
Flags: needinfo?(bugseforuns)
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