Thunderbird 78.11.0 (64-bit)
Calendar data disappears for no apparent reason. This has happened over the last 4 weeks. I have entered several appointments and suddenly after 2 or 3 days, all of them are gone. No updates or changes to my system has been done. Nor are any additions included in Thunderbird. How do I proceed ?
July 28th 2021: Exactly the same has happened again this Morning ! No apparent reason.
Where can I find a backup file and what is the name(s) of these files ?
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Все ответы (3)
I think this side can help you: https://support.mozilla.org/en-US/kb/calendar-updates-issues-thunderbird
Thank you Timo ! Unfortunately it does not help me as I do not use Lighting. It does not appear as an add-on to Thunderbird.
Once more the same problem !
Where can I find more help ?