2014819 - Dragging a tab can somehow lead to blocked UI on linux/wayland

Status: RESOLVED DUPLICATE of bug 2022238

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

Description

[:gerard-majax]

This may be a dupe of bug 1722301, but I have STRs that, while not reliable enough for me to allow mozregression, seems to be consistent on my setup.

Using nightly, linux/wayland for a long time. I use Vertical Tabs as well as tab groups, but maybe it is not related directly to the issue.
What happens is that I want to move a tab, potentiellay a tab that is "far away" down or up into a group. So I drag it.
Sometimes during the drag & drop, while I still hold the tab with my mouse, it detaches itself like it's attracted to a specific place, and then starts again moving, sometimes, not always.

Once this happens, I get into this state:

• the tab gets into the wrong tab group or place in the list of tabs
• UI gets broken and I cannot interact with URL bar nor any buttons on the top anymore, like in previous "unfinished drag & drop" bugs

It may have been a long-standing issue but I only recently figured out ways to trigger it more reliably than "I was using my system and something happened"

Comment 2

[Daniel Bodea [:danibodea]]

Can you provide us with the system information from about:support? This information might help us determine the cause of yourt issue.
Just open the browser where the issue reproduced, load about:support in addressbar, click the "Copy text to clipboard" button and paste the info inside this report. If you're worried about privacy, you can send it by email: [e-mail].
Thank you for your contribution!

Comment 3

[:gerard-majax]

(In reply to Daniel Bodea [:danibodea] from comment #2)

Can you provide us with the system information from about:support? This information might help us determine the cause of yourt issue.
Just open the browser where the issue reproduced, load about:support in addressbar, click the "Copy text to clipboard" button and paste the info inside this report. If you're worried about privacy, you can send it by email: [e-mail].
Thank you for your contribution!

What information are you looking for? It's Ubuntu 25.10 uptodate, very likely to still be the same issue as other dupes of bug 1722301

Comment 4

[:gerard-majax]

(especially since martin classified as dupe)

Comment 5

[Daniel Bodea [:danibodea]]

I am trying to compare the system information between the systems of different reporters of (allegedly) the same problem. This could (potentially) help us determine some cauzation. I could use the whole page of information (detailed steps in comment 2).

Any other information, or new discoveries about this issue would be greatly appreciated. Thank you!

Comment 6

[:gerard-majax]

no need, this is very likely what is described in bug 2022238 comment 22