Thunderbird Community Forum

I have my calendar from mailbox.org synchronized with my thunderbird via CardDav/CalDav. I have multiple calendars in the same account (e.g. work, free time, brithdays, ...). I cannot change in which calendar an event is saved after I created it.

How to reproduce: Edit an allready existing event and change its calendar (e.g. from "free time" to my "work" calendar).

Expected behaviour: The edited event is now moved to the other calendar.

Observed behaviour: The event is not moved (any other changes to the event are saved though).

It is not the fault of my provider as it works on my phone and on their web app.

This is either a bug in any of two ways:

• It does not change calendars events but it should.
• You are not supposed to be able to change the calendar afterwards and that means the selection of the calendars should be grayed out/ give you no option to save it.

(I know I can Ctrl+X and Ctrl+V it into a diffferent calendar, which I use at moment but that costs additional time.)

Thanks for any help with this :)

PS: I have to choose a topic but the calendar is not even part of that list. What is going on there?

We have bought a new computer from our tech guy before. This time, all was fine except for the Thunderbid calendar. The 20 GB of email files are all there and email still works. Only the calendar is blank. Our guy admits he dislikes Mozilla and rarely deals with it. Is there any way we can find the contents of the calendar? The old computer is still here in our house, but we only have one monitor. I had birthdays, lots of birthdays setup as repeating events. I hate to lose that.

This is odd as we didn't lose anything the last time we bought a new computer from same guy. We already were running Windows 11, so that is not the issue.

1) Sometimes you need to saven a print screen of the email the way it arrived. You do that by making a print screen form the email in the viewer. This is not only compact, but holds data one needs as proof of how and when the e-mail arrived. When you do that on the dat the email arrived or was sent, you can see the time, but not the date. So you have to remember to make a print screen the next day. Because only than you can see a date. Is it possible to show a date of today when an incoming or sent email is viewed in the viewer. 2) Sometimes you want to convert an email to an agenda item next week or so. When you do that, you cab see the full text of the email appearing in the agenda item, but not the date you received or sent this email. That is unpractical. Can you fix this?

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?

How do I import *.ICS file in a reasonable amount of time. I have appointments in an ics file of less than 1 K in size, typically 700 - 800 bytes in size and they take HOURS to import and do not connect properly then to allow editing the appointment. This is from Baylor Scott and White, a major hospital system in Texas. If there is a problem with the imported file structure, please point me to the correct file structure. I like Thunderbird, but this part of the calendar is very frustrating. Clarence

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.