1817613 - Opening a context menu with the touchscreen can break touchscreen input

Status: UNCONFIRMED

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

Description

[connor24nolan]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0

Steps to reproduce:

1. Go to any site
2. Hold down your finger on the touch-screen to trigger a context menu
3. Close the menu with the touch-screen
4. Now try scrolling with the touch-screen

Actual results:

It gets... weird. It acts like it's still selecting text or I have another phantom finger held down forcing it to pinch-zoom.

And if it gets stuck pinch-zooming, the touch-screen becomes pretty much unusable and I need to open a new browser window.

Expected results:

It would keep acting normally.

Comment 1

[connor24nolan]

Attachment: Screencast from 02-18-2023 06 09 57 PM.webm

Comment 2

[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 3

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

Which system is it? Can you attach about:support page?
Thanks.

Comment 4

[connor24nolan]

Attachment: about:support data

Here you go:

Comment 5

[connor24nolan]

Here you go! It should now be attached to the bug report.

Comment 6

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

Window Protocol: xwayland
Desktop Environment: ubuntu:gnome

I'd say XWayland may be the problem here. Can you try

1. Gnome Xorg session
2. Mozilla binaries under Wayland?
   https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Testing_Mozilla_binaries

Thanks.

Comment 7

[connor24nolan]

The problem occurs on both plain X11 and XWayland, but not full Wayland.

Comment 8

[connor24nolan]

Any updates on this? It basically means I have to restart Firefox or drag the tabs to a different window every 30 minutes whenever a long-tap ends up locking Firefox into pinch-zooming mode.