How can I set Thunderbird to launch automatically in the minimised or hidden-in-Launcher state?
First component of problem is starting it. I do not know which 'Command' is needed.
Second component of problem is keeping it minimised, or hidden from Launcher (given that it's unlocked from Launcher).
To start thunderbird when you log in, add it to the list of start-up applications See Setting up programs to startup at login - in short, open the "Startup Applications" app, and add an entry for Thunderbird.
For starting it minimized, I don't know of any native way, but I use an add-on: FireTray It minimizes to the tray, however:
(Please excuse the clipped nature of the bottom - I did a hasty job of cropping out a lot of empty space from a too-large picture.)
