Under Win 10 use "Windows-Button + R" then type "shell:startup" then create a shotcut (e.g. to desktop) of Thunderbird and copy it in the previously opened startup folder
For other OS google how to add a program to startup.
And fast as this Thunderbird doesn't even need to be on your taskbar at all!
PS.: I know its not a support forum but after 14 years maybe it's nice someone clears it up, as beeing the most easy and intuitve thing a program has to offer (start).
For all people bothering you need:
First (for minimizing to system tray at all):
https:/ /addons. mozilla. org/en- us/thunderbird/ addon/minimizet otray-revived/
Second (for minimizing to tray on startup):
https:/ /addons. mozilla. org/de/ thunderbird/ addon/minimize- on-start- and-close/
Third (for starting thundebird with windows):
Under Win 10 use "Windows-Button + R" then type "shell:startup" then create a shotcut (e.g. to desktop) of Thunderbird and copy it in the previously opened startup folder
For other OS google how to add a program to startup.
And fast as this Thunderbird doesn't even need to be on your taskbar at all!
PS.: I know its not a support forum but after 14 years maybe it's nice someone clears it up, as beeing the most easy and intuitve thing a program has to offer (start).