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mac calendar keeps wanting me to use a password for Safari, which I do not use, which then passes me on to Chrome. Plus calendar is not syncing with phone anymore. Help

Hello,

since some years I use the facebook calender url in the calender tab.

Since some days the are no entries shown anymore.

The same calender url is correctly used in google calender (web & app)

The facebook url is as followed:

https://www.facebook.com/events/ical/upcoming/?uid=100001094911980&key=XXXVO6gUO0v9U63j

It would be helpful to have a solution or at least an explanation for this problem.

Best Regard Werner Heims

(from Germany with limited English knowledge)

How does the 'Covert to Task ...' function work on an email? When I click the Convert to task, nothing happens. I was expecting to see a task in my task list. Where does it go? I have a 'Task calendar' and a Google calendar in my list.

Hi, I am trying to export a calendar from a Windows 10 PC into a Lubuntu PC. The exported Home.ics file is about 217KB. At stage 4 in the import process (which shows the file name correctly) a message in red says "No importable items found in the file" . In the main area it says "Loading items" but nothing happens. Am I missing something here? Thanks

My pc calendar display is blank. I can create new event in Thunderbird on my pc and it is immediately appears in my google calendar on my mobile phone, but does not appear on my Windows 11 PC.

In earlier versions, the calendar list button appeared in the left sidebar, so I could decide which calendars to display and change the default color. But I can't find this now. How can I change an existing calendar?

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?

I want to just search my calendars, but the search bar only seems to look up emails, not calendar items. I know I was able to do it in the past. Attached are two images.1) of me putting the search bar into the calendar tab and 2) of the search bar showing up there - but when I search all that comes up are emails.

Dear Support Team,

Could you please make the "Busy" and "Out of Office" colors in the form (screenshot attached) more distinct from each other?

Currently, they are very hard to tell apart visually when assessing an employee's availability in the calendar.

Thank you for your consideration.

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!

Hi There,

It would be helpful if I could print out (hard copy) various options (day/week/month etc) from my Thunderbird Calendar.

I can't see any facility to print our these views.

Is there a print function within Calendar?

Thanks

Jamie

Hi, my Thunderbird calendar reminders are coming up 4 hours after the meeting.

Running Kubuntu. System locale/timezone OK, TBird set to use system time (though manually making it the same didn't help). HW Clock matches system time. Pacific/Auckland.

Tried exporting all my appointments and re-importing them - no change.

when I exported my calendar on my old computer to an ICS file, it saved the original Disk and file path which is now different on my new computer. Some how the file path is embedded into the ICS file, why, anyway how to resolve?

I ran out of room on my C: drive a few years back, and moved user accounts to a new and larger drive G: and linked the USER directories to the G drive.

Thanks for looking

Hello, I just upgraded to a new mac and installed a fresh download of Thunderbird. Things are working well except for trouble subscribing to this astronomy calendar: https://cantonbecker.com/astronomy-calendar/astrocal.ics It works OK on my old mac/Thunderbird setup, but not on the new setup.

Details: New system, where the astrocal calendar doesn't work: MacBook Air M4 2025, running MacOS Tahoe 26.1, Thunderbird 146.0

Old system, where the astrocal calendar works: MacBook Air Intel i5 2017, running MacOS High Sierra 10.13.6, Thunderbird 115.10.1 (64 bit)

My steps to subscribe are Event and Tasks tab click Calendar On the bottom left I click New Calendar This opens a Create new Calendar window. Click On the network, Next I select "This location doesn't require credentials" and "Offline support" I fill in the URL: https://cantonbecker.com/astronomy-calendar/astrocal.ics, then click Find Calendars At this point on the new Thunderbird I get the error: Could not find calendars at this location. Please check your settings. (screenshot) But on the old Thunderbird I get that astrocal is available, and it actually works.

Any ideas? Is it a bug in the latest version of Thunderbird?

Thanks,

Peter H. PS: The new mac's default Calendar app subscribes to the astrocal calendar OK. It's just the new Thunderbird that has trouble. PPS: The new Thunderbird does successfully subscribe to another calendar, of Japanese holidays https://ics.calendarlabs.com/54/44bd6152/Japan_Holidays.ics That makes me more confused as to where the problem lies.

Hi, I am using Thunderbird on my windows 11 machine, I keep getting a calendar authentication request every time I open Thunderbird. I have no calendars enabled. There are 2 email accounts from one.com and one from gmail. Cheers Andrew

On each restarting of Thunderbird, my remote (caldav) calendar is switched off.

None action can do to remain enabled this calendar. When it is switched on, all work fine, but when I restart Thunderbird, it is switched off again and I must switch on it in the properties dialog.

On Linux Debian 10, Lightning 68.9.0-1~deb10u1.

Hello community!

I use Thunderbird desktop for two emails: personal outlook.com (ms365 or whatever ma calls it) and school exchange account.

Exchange works fine using owl and is able to sync calendar correctly. For personal email, it appears I can only connect via imap instead of MS’s protocol, which limits its ability to sync calendar. I’m wondering if there’s a way to login personal ms email similar to exchange to sync calendar etc.?

Thx in advance for ur help :-)