Rated 1 out of 5 stars

This add on does work not properly with my Thunderbird 68.5.0 (64-bit). You can install it, and it seems you can use it but when having written the Xnote and going to the next e-mail, the Xnote disappears. Additionally the button in Thunderbird is gone, only if you hit the right mouse button you will find the Xnote button.
Had to delete the app all together. Nice, all those new update, works very well!
#stopusingaddons