When opening Thunderbird, I lost my calendar and all events
When launching Thunderbird, my calendar and all events is missing. Email is fine. Calendar, completely gone.
When launching Thunderbird, my calendar and all events is missing. Email is fine. Calendar, completely gone.
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On the toolbar 
> Tools > add-ons and select the extensions entry.
Make sure lightning is active and installed ( that is the calendar)
由 Matt 於 修改