Thunderbird Community Forum

Hello,

I want to use TB to access my GMX CalDAV calendar. Basically, this works fine. But completed Todos disappear from the list after a day or so ("Show completed tasks" is checked). If I export the whole calendar to a ICS file, the todos are included though.

Is this a bug or is there a configuration where I can change that behaviour?

Thanks for any help, Markus

Hello,

i used the new feature to add my icloud calenders to thunderbird. that works fine. But the existing icloud Birthday calender was not separately choosable and dose not appear in thunderbird. what do do? Thank you!!

Best Simon

The today pane shows the incorrect date details. Today it shows Thursday 23 March 2018. Today is Friday 23 March 2018. When I open the calendar it shows today is Thursday 22 March 2018 and the date in the panel at the bottom right hand corner shows 22 and not 23.

The today pane shows the wrong day/date, typically yesterday. I need to restart thunderbird to get i correct. Clicking the o in the <o> thingy does nothing. This has happened multiple times.

Exact same problem as https://support.mozilla.org/en-US/questions/1210583

My PCs date and time is correct. My thunderbird calendar location is the correct city.

version 91.6.0 32bit (no idea why 32bit, this is 64bit windows 10)

Is it possible to have my Outlook calender (the email is already in thunderbird) in my thunderbird and the calender should be editable and when I add events, I also want it to show on my calender in Outlook. TBSync is not working anymore. Please help me!

hi all. if i create a new blank Task it automatically pre-selects today's date as the start date, and if i create a Task from an email it sets the date the email was received as the start date. i know can filter tasks lists, and hide columns, but the real issue is how it looks on the calendar; with the fixed start date, setting a due date in a month's time results in a fixed, ongoing task for a month. is there any plugin or setting that will just stop TB setting a start date that i can't change, or letting me explicitly set it myself?

Apple ID and password are saved in Thunderbird but every time I open Thunderbird it now askd for apple ID & password. Was working OK originally about 3 months ago but itn the last 2-3 weeks has started to ask for this info, If I type it in with my apple ID and the apple specific password then the calendar opens. It I say save password the next time I open Thunderbird it asks for Apple ID and password. and so on and so on.....

My iCal calendar has been connected to Thunderbird for ages and the connection has survived several updates on both ends. The Server is Nextcloud (currently 32.0.0.13). In the Today pane next to my Inbox I always have the "Tasks" view open. Creating, editing and completing tasks works as it always did. But some time ago (I don't know when exactly) all options in the "Filter Tasks" sub menu became greyed out. This used to work and I'm not aware of any change I made.

The same happened on my other system which runs Thunderbird 149.0 as the ubuntu-snap-build supplied by Ubuntu on Ubuntu 24.04.

Is there something I can do or is this a Thunderbird bug?

In version 149.0.1, the calendar layout seems to have changed so that, in the week view, the days are rows instead of columns. Is there a way to change to days being columns? The new layout really does not work for my events. I have short events that now can't be read at all because the event is too short to display any part of the event title.

On my home computer and my lap top I have Thunderbird installed. Both profiles are identical. The emails on both systems are updated by just downloading them from the provider account. My calender is normaly used on my home computer as well all appointments are saved there.

Going on longer trips away from home I would like to import all my calendar data from my home computer to my lap top. Copying the complete profile takes too much time. By just copying the calendar-data file to my lap top I do not get a working result. What do I miss?

Thanks for help Detlef

Hi,

I'm not sure how, but the default orientation of my calendar items in day or week view is stuck on horizontal. I don't remember any express change that I made, and combing through the settings and online research has not yielded a solution. I'm not sure how to switch it back, and it's pretty inconvenient!

Any help would be gratefully appreciated.

Thanks!

Hi I have successfully linked my TB Calendar to Nextcloud. However, Tasks are not syncing.

When I go to create a task in the shared calendar TB advises: Please select a calendar that supports tasks

I understand later versions of TB now handle CAL and CARD Dav better.

Some have suggested using TBSync addon, however that appears to only support account creation for Google and MS calendars, but not Nextcloud.

Is there a setting in TB or NextCloud I am missing, or an addon ???

Any thoughts appreciated. Thanks

I recently transferred to a new Win 11 system. I copied the profiles over and all my address book and settings are working. I have found that my calendars are not. I have three sub-calendars attached to my Home calendar, one was downloaded "USHolidays" and is working, the other two I created and are grayed out. The hover message says they are "momentarily not available." How do I fix this so they appear?

Hi, am not finding anything helpful in the support area, so hoping someone can help me solve. When a calendar reminder pops up, and I try to snooze or dismiss, I get this message:

Status Code: 2,147,500,037, null

Server Replied with 400 If you’re seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or 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.

Thing is, I do want to add and edit events, so I have no other options and the reminder keeps popping up every couple of minutes it seems. Any help resolving is appreciated. Thx!

Using TB 147.0.2 on Windows 11. Installation went very smoothly, including importing all my IMAP, Gmail, and iCloud accounts. Kudos!

However, my iCloud account has four calendars (personal, shared, travel, work) and TB only sees two of the four. I can't pinpoint any reason why. There's nothing special about the two it sees or the two it doesn't, as far as I can tell.

Any hints? Suggestions? Ridicule?