https://bugs.kde.org/show_bug.cgi?id=422625
--- Comment #1 from Ilya Bizyaev <bizy...@zoho.com> --- Replacing KWin seems to also help now; didn't help earlier, maybe is somehow related to x11 downgrade. Anyway, I have found one way to consistently reproduce this on my machine: restore and then maximize Firefox with CSD enabled by dragging its headerbar to the top edge. -- You are receiving this mail because: You are watching all bug changes.