2043836 - Once launched, Firefox is not the active window

Status: UNCONFIRMED

(Core :: Widget: Gtk, defect)

Description

[promeneur]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.0

Steps to reproduce:

Operating System: openSUSE Tumbleweed 20260527
KDE Plasma Version: 6.6.5
KDE Frameworks Version: 6.26.0
Qt Version: 6.11.0
Kernel Version: 7.0.10-2-default (64-bit)
Graphics Platform: Wayland

launch Firefox
Firefox window is opened

Actual results:

Firefox window does not get the focus.
we must click on it to get the focus.

Expected results:

Firefox window gets the focus.

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.

Comment 2

[Andre Klapper]

How is that a Firefox issue, and not an issue with your window manager software?

Comment 3

[promeneur]

Please I am not a techie person.
I can't know where the problem comes from.

Comment 4

[promeneur]

there is no problem with VLC.

I sent a report to kde team :

https://bugs.kde.org/show_bug.cgi?id=520855

Comment 5

[promeneur]

No problem with X11.

the problem is around firefox and kde wayland.

Comment 6

[promeneur]

This bug came at least a month ago with Firefox 150

Comment 7

[Thinker Li [:sinker]]

Could you provide about:support?

Please also provide fx-focus.moz_log the following command generate.

MOZ_LOG="Widget:5" MOZ_LOG_FILE=fx-focus firefox

Please keep the log as short as possible. I just need to know the startup part.
Thanks!

Comment 8

[promeneur]

Attachment: about:support

Comment 9

[Martin Stránský [:stransky] (ni? me)]

AFAIK this is caused by KDE strict focus handling settings.

Comment 10

[promeneur]

KDE team explain the problem and supply a solution.

see comment #7 of

https://bugs.kde.org/show_bug.cgi?id=520855

Comment 11

[promeneur]

The result of MOZ_LOG="Widget:5" MOZ_LOG_FILE=fx-focus firefox
is an empty file