topic Calendar: not able to dismiss a birthday reminder (Nextcloud) in Discussions

Calendar: not able to dismiss a birthday reminder (Nextcloud)

jubby001 — Wed, 04 Mar 2026 06:34:35 GMT

I'm using nextcloud as base for my calendar and contacts. Thunderbird extracts birthdays from the contacts and shows them as calendar reminders. But other than common calendar events they cannot be dismissed: they always pop up again after some minutes. Doesn't matter if I click the closing X of the window or just put it in the backgroud: pops up again. Remarkable is that when clicking on Close or All close nothing happens at all (dialog window does not disappear, no reaction). This is experiencable for a long time now (using 140.8.0esr at the moment).

The Birthday calendar ist named "Geburtstag von Kontakten" (birthday of contacts) and it's URL is something like

https://[an URL]/remote.php/dav/calendars/[name]/contact_birthdays/

Anyone else with this issue? Any solutions for that?

Thanks a lot for your work!

Re: Calendar: not able to dismiss a birthday reminder (Nextcloud)

KayP — Sun, 15 Mar 2026 11:31:26 GMT

I have this issue too.

Re: Calendar: not able to dismiss a birthday reminder (Nextcloud)

ph0t0 — Sun, 15 Mar 2026 21:54:50 GMT

I have this issue too. I have had it before, but it disappeared/got fixed. Now it's back.

This is on Ubuntu 24.04 with Thunderbird 140.8.0esr (64-bit) and Nextcloud 32.0.6, with Contacts app version 8.3.5 (and calendar v6.2.1 if that is somehow of interest).

Here is a Nextcloud bug report from 2020 describing the same: https://github.com/nextcloud/server/issues/21830. The workaround mentioned there is to set the Contact Birthdays calendar in Thunderbird to Read-only. That worked for me too.

Re: Calendar: not able to dismiss a birthday reminder (Nextcloud)

jubby001 — Mon, 16 Mar 2026 11:16:59 GMT

This seems to work! Thanks a lot.
I think it may be an idea to make this step transparent for "normal users", maybe as a helpful hint or an option that pops up if acknowledging of those date events fail due to insufficient write rights...?