Dies sind die Erweiterungen, die ich in meinem Thunderbird installiert habe.
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...
Display birthdays from the Thunderbird addressbooks as events in Lightning.