Forum der Gemeinschaft Thunderbird

Dear Community,

I have a LAN connected desktop Windows 11 computer using Thunderbird 140.10.0esr (32-bit) synced to two different Apple calendars with no issues.

I also have two Wi-Fi connected laptop Windows 11 computers using Thunderbird 150.0 (64-bit) each synced to the same two Apple calendars above. I haven't had any sync issues with these until lately and I believe they are setup exactly the same as the desktop computer above.

For example if I attempt to "Add" a calendar entry I will get the following error message: "If you're seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right clicking on this calendar in the list in the calendar or task view."

I have tried removing the calendar and adding it back but I still get the same intermittent sync issues and get these type of error messages. I have no extensions.

Not sure if this might be a software bug in the latest 150.0 (64-bit) release because 140.10esr (32-bit) appears to work fine on my desktop computer.

Any suggestions would be greatly appreciated. Many thanks.

I cannot find a way to sync my tasks on my thunderbird Windows desktop with my android phone.I have tried byrdiesync, but byrdiesync says they cannot do it.Is there some way to do this?

I used to get REMINDERS for all events/tasks until about some months ago. But now I don't get the reminders for most events/tasks. rearly I do get reminders randomly and ocasionally. I have been using TB (Thunderbird) for many years without any problems. I update TB religeously as updates become available. Please advise the fix. Thanks in advance! Anil Deshpande

Thunderbird somehow only syncs some events on some weekdays from one of my calendars. One event of two on tuesdays shows up, all events on mondays don't show up. These are similar events each week. It seems to be syncing all events from a different calendar on the same account from the same server.

Why does a calendar reminder open in edit mode when you select it. If you go to the calendar and open it you are presented with the information and the attachments. If you click on the reminder you must click on details and then you must select "Edit only this occurrence" or "Edit all occurrences" and then select "Attachments".

Why is there not an option to have the reminder open as it would if you selected it in the calendar?

No topic listing above for this Thunderbird Calendar issue. Calendar events disappear completely. I have been scheduling series events using the weekly repeat. Then modifying the few that change. Somewhere the whole series just disappears. Example: PT-Kathleen was input as Monday at 11 to remind 3 day's in advance and repeat for three months. Then I modified several that were scheduled differently. All is good for several weeks then 1 the reminders no longer work. Then the whole series disappears. This has happened for about five of these series and I just put all the stuff back in. But, then that disappears also. Any thoughts things I should setup differently?? tired of redoing things multiple times. Robert Kelly

I have created daily tasks to remind me to do certain things. When I dismiss these in the reminder dialog box, they are colored Red in the Task Pane but not complete, and thus they remain in the Task Pane. Is there away to delete these Red task in mass, i.e., highlighting them and deleting them? Or is there a better way to dismiss them when they pop up so they disappear?

Thank you,

It seems lately that when I simply open a calendar entry to see what the contents are, then close it without making any changes, it sends an update to all those involved that something changed (as seen in the picture).

Also, when I accept an invite event and tell it not to send a response, it always does. This has been happening for as long as I can remember, and I cannot figure out a way to stop it, no matter what I do.

Anyone have any ideas for either of these issues?

I'm trying to list future events in the T-bird Calendar without including my numerous daily reminders (mostly when I'm supposed to take my meds). Is there a way to suppress their inclusion? Or is there a way to enter daily events as a separate class that won't show up in the standard future events list? Thank you.

I have this issue with my reminders for peoples' birthdays. I have an event on their birthday that comes from my Google contacts. That event has a reminder 1 week in advance. When the 1-week mark hits, I get an undismissable notification from Thunderbird. I can close the reminder window, but it'll show back up within a minute or two. I've tried removing and re-adding this calendar but it doesn't matter. When I look at the details for the event, I see that the Organizer field is Unknown Organizer <unknownorganizer@calendar.google.com>. My regular email address is listed as an attendee. This has been happening for at least the last several months, perhaps more than a year.

I have a professional email address and a gmail address configured correctly in thunderbird. I also have a number of google calendars configured in lightning using the built-in google calendar support (i.e., I am not using the old google calendar plugin). Until recently, when I received and accepted a calendar invitation sent to my professional email address, thunderbird would ask to which calendar I wanted to save the invite. I would select the calendar I wanted and it would be saved appropriately.

A week ago, I created a new google calendar and added it to thunderbird/lightning using the built-in google calendar support. Now, when I accept a calendar invitation, it automatically goes to the new calendar (which is generally not appropriate) without asking me to choose. Furthermore, I am unable to edit these calendar events to change the calendar they are associated with. I have checked the properties of both the new and old calendars and they look the same.

The only seeming solution I found was to make the new calendar read only and disassociate it from an email address, and then undo both those options. For the time being, this operation seems to have gotten back the option to select which calendar invites are saved to. But I would still like to know if this was the correct solution and better understand how thunderbird chooses to save event invitations.