Rated 4 out of 5 stars

I have been using Quicktext for four years.
Now, I had the bad idea updating Thunderbird to the newest version. I can't use Quicktexte anymore.
I hope the dev will be able to release an update !
Please ;-)

This review is for a previous version of the add-on (5.21). 

There is a preview release at https://github.com/jobisoft/quicktext/releases