Firefox Wayland window from session restoration stays on top
Using Debian Sid/unstable, since the GTK+ 3.24.16-1 (still happening with 3.24.17-3) upload, in GNOME Wayland with Firefox (74.0, 74.0.1) Wayland restoring the session often – maybe in 80 % of the cases – causing the Firefox window to stay on top, even though “in the background” the virtual desktop is changed. It is not happening with Firefox running under X Wayland. Can it be, that suddenly creating nine or ten windows with several tabs is causing problems?
The only way to get out of that is to run
killall firefox from a tty. Please find the file from below attached.
MOZ_ENABLE_WAYLAND=1 WAYLAND_DEBUG=1 firefox &>/dev/shm/gtk3-firefox.txt