Firefox’ autocompletion and tooltips put it behind any fullscreen surface

[linkmauve]

It first creates a new surface in which to draw the menu/tooltip, which is considered a normal window, so this surface steals the focus from Firefox’ main window, and since another window is fullscreen Firefox goes behind it, which removes the menu/tooltip window.

[Cloudef]

Apparently fixed by fixing the focus race condition for Xwayland clients.

[Cloudef]

And reproduced :)