Created attachment 154826 [details] Before and after alt-tabbing SUMMARY Tooltips from inactive windows are rendered above the active one. STEPS TO REPRODUCE 1. Open any application 2. Hover over an element which can display a popup (e.g. hover over a bookmark on Firefox shows me the full name of the bookmark and its address). 3. Swicth to different window while keeping the mouse in place. OBSERVED RESULT The tooltip is still displayed, and it's rendered above the window I switched to. The only way I can hide it is to go back to the window, so that the element loses focus. EXPECTED RESULT The element which caused the tooltip to appear gets unhovered or the tooltip is rendered below the active window. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.26.4 KDE Frameworks Version: 5.101.0 Qt Version: 5.15.7 Kernel Version: 6.1.1-zen1-1-zen (64-bit) Graphics Platform: X11 Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz Memory: 11,5 GiB of RAM Graphics Processor: Mesa Intel® Xe Graphics Manufacturer: Acer Product Name: Aspire A515-56 System Version: V1.26 ADDITIONAL INFORMATION
On Wayland, kwin can dismiss popups. On X11, kwin can't do that because popups are usually override-redirect windows, it can't touch them. The best chance of fixing this issue would be to report it to Firefox developers.