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I tried everything (local calendar or online an so on). Version 52.9.1 works excellent, but 60 runs only without lightning (disable during installation). With lightning it crashes not directly, but after some time, for example: you have a marker in the calendar to inform you by sound or similar.Go back to a separate add-on.

I use Thunderbird as main email client on PC, I also access via iPAD email

On iPAD if I get a Calendar invite (eg Teams) I can scroll to bottom of the invite, and there is an option to add ICS file to Calendar. I click on it and it pushes the invite to Google Calendar, and it inserts the correct appointment.

However on my main device (W11 PC) Thunderbird does not show any ICS file. There is a banner that say "This message contains event information. Enable a Calendar to Handle it" Can it be configured to use Google Calendar as the linked Calendar ? If so, could someone explain to me how to do this.

Using Thunderbird 128.5.0esr (64-bit) on 128.5.0esr (64-bit). In calendar view, I see all my appointments with the background colour of the calendar they are in (see attached). In my inbox view, I have the Events tab open at the right. All day events have the background colour of the appropriate calendar, but ones with timings have a dot. (see attached). How do I make ALL calendar events have the background colour of the associated calendar in the mail events tab??

When I first opened Thunderbird (just a few weeks ago), I noticed that some Calendar Tasks were already set up by Thunderbird. (My standalone calendar is Efficient Reminder).

But I don't see options for REMINDERS - popups (preferably) and/or sounds. (The purpose of a calendar for me is to be reminded to do things.)

I searched for options in Thunderbird, and I looked on the information here, but can't find anything.

If I can I select a sound and/or popup to REMIND me, where can I find the option to set it?

Some of my calendar reminders are not appearing. At least one in particular is still showing. This is a daily reminder. Other reminders whether for a set period or just a one off do not appear.

I am using Version 140.1 on Firefox.

Hello,

Since the update of Thunderbird 140.2.0esr (64 bits), when I look at the Thunderbird calendar after checking my emails, the default view goes back to midnight (as display on the attached picture) and I have to scroll every time to 8 am. The question was asked 5 years ago in the forum but the solutions to uninstall and reinstall the software did not fix the issue.

Do you know how the default view could begin at 8 am? Thank you I am using Ubuntu 24.04.3 LTS

I'm using the latest version (145) and I've setup my office 365 email account. I'm trying to setup my calendar account as well but when I enter location, username and password it says that my credentials were not accepted.

I assume this means that TB is using legacy un/pw authentication which is no longer supported instead of OATH2. There is, however, no option to select OATH2 in the calendar setup process (like there is for email).

Are office 365 calendars supported by TB 145?

My calendar has disappeared. I have years of important dates that are lost. . . say it ain't so, Mozilla! WTF. My "add-ons" show nothing installed. Are you kidding me? They broke Thunderbird?

I successfully subscribed to an online .ics file but I found the resulting calendar entries inadequate and I want to unsubscribe but I can't figure out how to do that. I've tried searching for instructions but haven't found any.

I FOUND no close TOPIC.

Google calendar allows color-coding of events - but the display is highly inadequate. T-bird 128 calendar apparently HAS no option to color events. But events are FAR easier to see WHEN color-highlighted. Would this be a difficult option??

How can I get back the ability / setting I always had to see the right side 'mini-view' of my monthly calendar? I used to be able to see each day on the right side of my calendar - now it's not showing??? I'm sure it's a simple display setting or option - but I can't find it - please help...

I am unable to print a calendar to either an installed printer or to an installed PDF printer. I'm running Windows 10 64-bit. I was able to print an email just fine.

Is there a way to copy Lightning calendar entries? Often, you will want to use an existing calendar entry as the starting point for a new entry which is almost identical (but not quite recurring), so I wondered if there was an easy way to do that.

I want to sync my Thunderbird calendar on my win11 laptop with my new Samsung Z Flip 6 phone. I have a Google calendar on the phone, and I've ticked "Lightning" on it, but I'm not getting my entries transferred from my laptop.

Can anyone help, please?

Please Someone help ?

I have followed all the suggestions I can find, but my Thunderbird Calendar will not sync with the Outlook Calendar on Windows 11. I am using TB Sync, but every time I try to add my Outlook Calendar ? It refuses to accept my Password, even though it is correct, and the User name and email are too ! It shows as error code 401, and cannot authenticate ?

I have tried a suggestion to create an 'App Password' to use in my Microsoft account, but the options described do not exist in my account !

Can anyone please help ?

Two days ago, my Google calendar tab disappeared in Thunderbird and I don't know if it is possible to get it back. I manage all events and appointments from Thunderbird so am really missing it. How can I get it back.

Get Messages doesn't work anymore. I created another profile with the same email address and it works fine. The issue is that I lost all my info, addresses, and most importantly the Calendar. I've been messing around with this all in trying to import that info into the new profile, but failing. I copied calendar-data to the new profile, but it doesn't show up. Can someone please help! Thanks, Paul

After an update to Thunderbird around 8/10/24, I can still list future calendar events, but no longer past events. It is very useful for me to list past events. For example, I can quickly find out when I last had a flu shot. Could you restore this ability to print a complete list of past events, as well as future events? Thanks! Carl Lund