Comment 44 for bug 1945368

Revision history for this message
In , Anjeyelf (anjeyelf) wrote :

(In reply to Wayne Mery (:wsmwk) from comment #38)
> (In reply to Anje from comment #37)
> > Still getting reports relating to the Home calendar - loss of data upon update to 91 - not working:
> > https://support.mozilla.org/en-US/questions/1349601
>
> Has it been confirmed that the reporter is NOT using the provider add-on?

Confirm - Some Users only using the default 'Home' calendar and NOT the provider addon - actually not using any addons. They only have the one calendar. Some using both Home and other eg: Google. But 'Home' effected the same.
Update removed everything from calendar.
Then the blank Calendar unable to retain any entries in Home calendar - separate bug but seems related.

Workaround to get Calendar working:
if user has no backup then create a new Home calendar and then delete the original non functioning Home calendar. Unfortunately all previous calendar entries/events etc prior to version 91* update are lost.

If user had a 78* backup created:
Install Thunderbird 78* (whatever version they previously used) to another location, point to use backup profile then export the calendar.
In version 91*, import the calendar. Delete the original blank non functioning Home calendar.
Then remove the 78* version.
This workaround using backup is ok for those savvy enough to know how to install and run different TB versions. But may be beyond some people.

Those will google accounts seem to get fixed after removing the old 'Provider for google calender' addon and then downloading and installing latest version so can now recreate the calendar.

So the biggest problem seems to be for those using Home calendar who do not have a backup.