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Lightning 6.2 Requires Restart
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.
About this Add-on
Read the latest news and get information about known issues first by subscribing to our blog or following @mozcalendar on twitter.
Lightning also supports older versions of Thunderbird, please see the complete version history for details.