#Thunderbird AAAH! Updated to TB 140.0esr and now my add-on Quicktext is deactivated due to incompability 😥.
I can not live without Quicktext.
Anyone knows a good substitute?

EDIT: SOLVED!!
Downloaded and installed Quicktext v6.3.5 from https://github.com/jobisoft/quicktext/releases and everything works again.
Thanks to John Bieling 💪