please include an "open with all mail tabs closed" option
Please can an option to open Thunderbird with all the mail tabs closed be included. It is annoying to have to remember to close all tabs when exiting and would be much better if yo could just open Thunderbird with no mail tabs showing.
Opaite Mbohovái (1)
If you install CCleaner, it will delete the session file Thunderbird stores that information in. So you get what you want via the back door.