1886996 - Does not restore Firefox window to correct virtual desktop anymore

Status: RESOLVED INCOMPLETE

(Core :: Widget: Gtk, defect, P3)

Description

[William]

Firefox Developer is up to date 125.0b3 (64-bit)

Kubuntu
Distributor ID: Ubuntu
Description: Ubuntu 23.10
Release: 23.10
Codename: mantic

Steps to reproduce:

Start Firefox 125.0b3 and restore session with virtual desktops on KDE Plasma desktop.

Actual results:

Firefox Windows since 116.0.2 update does not restore Firefox windows to the correct virtual desktop anymore.

Expected results:

Each Firefox window used to be restored back to the correct virtual desktops where it was previously displayed. It was working properly before the 116 update as best I recall.

This still happens with Firefox 121.0b4 and 125.0b3 on Kubuntu 23.04

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Win32' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Ray Kraesig [:rkraesig]]

I personally use Kubuntu 22.04 LTS at home, and can partially reproduce: exactly one of my Firefox windows remains on the current virtual desktop, while the others relocate appropriately. (This may or may not be intended behavior.)

Comment 3

[Dão Gottwald [:dao]]

Hey William, could you help us find a regression range for this bug? Thank you!

Comment 4

[William]

• I am running KDE Plasma on Ubuntu
  -- This is a Windows program

Comment 5

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

William, please attach your about:support page. I may be caused by X11 -> Wayland switch.

Comment 6

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

I expect the bug is here:
https://searchfox.org/mozilla-central/rev/5a7e5e2e1fe04028fc77787084caf9b26ab74ce6/widget/gtk/nsWindow.cpp#2909

So can you please run firefox on terminal with MOZ_LOG="Widget:5" env variable, for instance as:

MOZ_LOG="Widget:5" firefox

and check if you see nsWindow::GetWorkspaceID() / nsWindow::MoveToWorkspace() lines? It's possible that workspace ID is changed and we don't have valid one any more. Please attach the output here.

Thanks.

Comment 7

[Vladimir]

Happens 100% of the time on my system. I've switched from chrome and i really love a lot of the features but some of the others I'm used to arent there and this is one of them, sadly enough.

---

Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble

Mozilla firefox Snap version for Ubuntu
133.0.3 (64-bit)

Comment 8

[Dão Gottwald [:dao]]

Hey William and Vladimir, could you please try what :stransky suggested in comment 6, and perhaps provide your about:support output as well?

Comment 9

[BugBot [:suhaib / :marco/ :calixte]]

Redirect a needinfo that is pending on an inactive user to the triage owner.
:stransky, since the bug doesn't have a severity set, could you please set the severity or close the bug?

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