https://bugs.kde.org/show_bug.cgi?id=485196
--- Comment #2 from ezh <eugene.savit...@gmail.com> --- Just got it again. It is not FF related, in Thunberbird as well a tab would not close, as a Telegram window as well. Opened KDE System Settings - Mouse - Re-Bind Additional Mouse Buttons window and all works again OK: FF and TB tabs closes, Telegram windows closes as well. -- You are receiving this mail because: You are watching all bug changes.