Hi A friend is having issue with Thunderbird shortcut keys tripping her up when they are pressed by mistake. Often recovery is not easy since one doesn't know what one has pressed by mistake! I've looked for ways to disable shortcut keys but the old add-ons that https://support.mozilla.org/en-US/kb/keyboard-shortcuts-thunderbird?redirectslug=keyboard-shortcuts&redirectlocale=en-US lists are no longer supported. TBKeys Lite *is* supported in current versions but using its "Unset singles" doesn't seem to stop shortcut keys. The extension says it is aimed at power users i.e. not intended to simplify life for basic users. Given this, I imagine asking how to configure it for this will receive short shrift! Can anyone explain how to disable shortcut keys?