User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0
Steps to reproduce:
I am using gnome-shell 40.3 and firefox 90.0.2 inside fedora 34
Dragging a tab in the upper-left gnome menu and dropping it inside the gnome shell's menu makes all the Firefox windows holding the "drag" mode and I cannot interact with them.
When I resize one of the windows, the problem seems to go away, except for the window from where the tab was dragged. The tabs from this windows won't interact anymore (I can still drag the window when touching the blank spaces).
I'm sure someone might have seen/reported this bug before, but I was exploring across some keywords and only found similar but not quite related issues. Any correction is welcome, and I'm sorry in advance.
All windows were stuck, holding a sort of "drag" mode.
After resizing any Firefox window, the state wears off, but the tab panel from where the tab belonged stays frozen.
Also, I don't know if it's related but I got a black screen while issuing this. The logs are "insufficient" for bug reports, according to gnome problem reporter.
"Drag" state should have gone as soon as the mouse press was released.
The tab panel from the window should stay interactive.