1794266 - [Xwayland][nsRetrievalContextX11::WaitForClipboardData] After locking and unlocking the screen firefox will hang when opening a new tab with middleclick, or when the side bar is interacted with

Status: UNCONFIRMED

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

Description

[QuirinBrunner]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0

Steps to reproduce:

Kde on Arch Linux->lock screen with Firefox open->unlock screen->middle click on link to open it in new tab->firefox hangs

I have tested this for both Firefox-developer-edition version 106.0b9 and Firefox version 105.0.3-1. It hung every time I tried it.

Actual results:

Firefox freezes for a few seconds before opening the website in a new tab and becomes unresponsive until it does. Other items can still be clicked and will be opened as soon as Firefox stops freezing.
After a few minutes Firefox usually works as expected again.

Expected results:

The tab should open just like it normally would and Firefox should not hang.

Comment 1

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

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

[QuirinBrunner]

I have tested it with Xorg and Wayland now and it seems to only happen on Wayland.

Comment 3

[Darkspirit]

Does this problem still occur?

Comment 4

[yamplum]

EndeavourOS (Linux 6.2.9-arch1-1), KDE Plasma 5.27, Wayland
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0

Can confirm the issue still occurs as described.

Additional recent reports from other users:
https://www.reddit.com/r/firefox/comments/10eqsxu/recent_update_broke_middleclicksevere_lag_when/
https://www.reddit.com/r/kde/comments/11bsgla/firefox_is_hangingfreezing_for_a_few_seconds_when/

Suggested workaround of setting accessibility.force_disabled to 1 did not fix the issue.

Comment 5

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

Please attach content of about:support page.

Please try latest nightly:
https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Testing_Mozilla_binaries

If you can reproduce, please attach backtrace of the freeze:
https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Getting_Mozilla_crash_report_from_running_or_frozen_Firefox

Thanks.

Comment 6

[yamplum]

Attachment: about:support

Comment 7

[yamplum]

The issue does not occur on version 112 if run with MOZ_ENABLE_WAYLAND=1. The freeze also sometimes clears early when I switch focus to another window. Seems like some kind of XWayland issue?

Comment 8

[yamplum]

Not sure if I did it right, but https://crash-stats.mozilla.org/report/index/b8c82613-40a3-4e2b-a6e5-4ce680230413

Comment 9

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

(In reply to yamplum from comment #8)

Not sure if I did it right, but https://crash-stats.mozilla.org/report/index/b8c82613-40a3-4e2b-a6e5-4ce680230413

That looks correctly but I don't see any hang here - Firefox just waits to get system events.

Comment 10

[yamplum]

(In reply to Martin Stránský [:stransky] (ni? me) from comment #9)

(In reply to yamplum from comment #8)

Not sure if I did it right, but https://crash-stats.mozilla.org/report/index/b8c82613-40a3-4e2b-a6e5-4ce680230413

That looks correctly but I don't see any hang here - Firefox just waits to get system events.

I tried capturing another one during the freeze itself. I see clipboard mentioned in the backtrace, perhaps something to do with middle-click to paste? Will try to investigate further.

https://crash-stats.mozilla.org/report/index/60b416b6-c974-4621-8847-ed81a0230413

Comment 11

[yamplum]

Confirmed, after setting middlemouse.paste to false in about:config the issue no longer occurs under XWayland.

Comment 12

[Darkspirit]

(In reply to Martin Stránský [:stransky])
Can middlemouse.paste become disabled by default (bug 1747207) and general.autoScroll become enabled by default (bug 1747208) to get the same default settings as on MacOS and Windows?

bug 1515783
https://github.com/brave/brave-browser/issues/22864
https://bugs.kde.org/show_bug.cgi?id=441668
https://www.reddit.com/r/Ubuntu/comments/unviho/disabling_middle_click_paste/
https://www.reddit.com/r/linux_gaming/comments/w27h1o/linux_enable_middle_mouse_button_scrolling_on/

Comment 13

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:stransky, since the bug has recent activity, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 14

[wincak]

This still happens to me sometimes after waking up from sleep on current Kubuntu 23.04 - Wayland with Firefox 118.0.2 Flatpak.
Setting middlemouse.paste to false seems to fix it.