Curses upon Thunderbird and Mozilla! I hate them both. I wish them and all their minions 1000 years burning in hell. I trusted them when they told me I needed to update Thunderbird today, let Thunderbird update itself - and the bastards lost a mail folder's entire set of subfolders - which were where I stored ALL the emails from family and close friends. Arrrghhhhhh!!!!!They completely deleted them, they are gone, disappeared, not there - and yes, I checked in the application date area where Thunderbird stores mail.
Bastards. I hope they fry in hell.