Thunderbird Community Forum

Is there a way to update existing calendar appointments by using an updated ics-file? We have appointments that are placed in the Calendar of Thunderbird, and there need to be modifications made over time. These appointments can be in the past, present, or in the future.

When trying to import a modified file, by just updating 'DESCRIPTION', and using the same ID, Thunderbird throws the error of: mail.import: : ID already exists for addItem

   onError resource:///modules/CalStorageCalendar.sys.mjs:203
   adoptItem resource:///modules/CalStorageCalendar.sys.mjs:220

CalendarFileImporter.sys.mjs:120:22

We need to be able to access the same appointment, and we do that from an external database.

Version: 156.0 (64-bit) snap on Ubuntu 24.04 LTS

I have 3 different email accounts. My calendar was associated with the main account. Now for some reason it is associated with the second account. It is also not showing on the day/date calendar area, but does show on the event area of the calendar. It is associated with the second of my accounts, not the first.

Any ideas?

Not sure where to post a feature request, but I use a scheduling app (Playtime Scheduler) that consistently offers ics files with an empty LAST-MODIFIED field. So I have to manually edit the ics file every time before it can import into my calendar.

Would it be hard to make Thunderbird ignore an empty field like that and import anyway?

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 noticed that when a .ics file is not able to be manually imported into Thunderbird via the Events and Tasks there is a way to get it to import. Simply edit the filename of the .ics file to something very short (like less than 8 characters). I'm not sure why longer and more complex .ics filenames fail but shortening the filename almost always works.

I have been using Thunderbird calendar synced to gmail a/c on Linux Mint for many years and have been able to send reminder notifications by email. Recently I had to unsubscribe my calendar and reinstall to clear a fault and the notification by email function has disappeared from Thunderbird event notifications. Can you tell me how to restore that function?

Version 140.11.1esr

After upgrading from Mint 21.3 to 22.3, Thunderbird no longer offers me the option of setting email alerts for events. Details: - I have Provider for Google Calendar installed - I've tried adding my calendar as "Google calendar" and "On the network" but neither offers email alerts. (On the network works better for responding to invitations.) My current work-around is to go to the google calendar app on my phone and set an email alert after creating the event in Thunderbird. That works but is a pain. This worked before. I suspect it's more a configuration issue and less a Mint version issue.

A large list of participants will extend the content of the "Edit Event" window beyond the threshold of the window, making all checkboxes (Notify attendees, etc.) and part of the list inaccessible.

This will also affect the Description and Attachments tabs.

With a lot of moving and resizing, the window can be resized to show everything, but then it extends far beyond the size of the screen. This is impractical.

The list of participants should never exceed the confines of the window and should be scrollable.

140.12.0esr (64-bit) on Ubuntu 24.04.

Hi there,

I'm having an issue where I receive invitations by the owner of a calendar i subscribed to. I have to subscribe to the calendar to be able to schedule events with them.

When I receive the invite, it keeps saying "already processed" which is not the case. I dont have that event in my calendar and it has not been accepted.

I have checked that the subscribed calendar is not linked to my account (calendar settings, email account: empty) and the actual calendar is linked to my email account (calendar settings, my email account).

what should happen logically is the "subscribed" calendar should not be counted as my calendar, events should not be counted as already processed and invites should be clickable and then be transfered to the calendar linked to the receiving email address.

Mind you, thunderbird on mobile works like it should. Its only the linux client that has this issue.

Thanks in advance for any help.

(Sorry, there is no calendar topic ... but this is about converting calendar event to email message...)

I just discovered (because I needed it for the first time) the nice and useful "Convert to ... message" feature for calendar events.

The converted event does not, however, include the date and time of the event nor the location, arguably the most important information about a calendar event. The calendar it is located in would also be handy, for those of us maintaining multiple calendars. Currently, it places the event title in the subject line, and the description in the message.

Anyone know if this is configurable? I looked in settings and didn't see anything.

Most useful would be a default template, which users could customize, perhaps per-calendar. All that I can see that is customizable about this is the sending email address, which can be set in the calendar properties.

Another issue is that this feature is not available from the event detail popup. In that case, I would think it would be not only available, but prominent. The event detail view is where I would expect most features relating to an event to be located, yet only the "Edit" button is present.

Thanks! Erik. - daily user and lover of Thunderbird!

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.

Hi,

Someone sends me a calendar appointment for 11th of May at 16:30-18:30 and another at 18:30:20:30. I accept these appointments. In my calendar, they correctly display at these times.

When I close and re-open Thunderbird, the first appointment is now scheduled for 12th of May, but the second is fine. When I close and re-open Thunderbird again, the second appointment is now scheduled for 12th of May as well.

The times are completely different too.

I'm using Thunderbird 138 from the Arch Linux repositories but I've also tried the Flatpak package to no avail. I've tried setting my Timezone manually and using my System timezone to no avail.

GNOME Calendar, which is also synced to my Caldav server, displays the appointments at the correct day and time. The web interface for my mail server also displays correctly.

It's only Thunderbird that screws it up time and time again.

This has been going on for years and it is driving me insane. I can't use my calendar with Thunderbird because I keep thinking my appointments are at the wrong time!

Send help.

Hi, I have a strange experience with thunderbird's calendar: an hour or two after i created a new appointment in my calendar, i cannot change this appointment anymore. When i do so, this appointment is not saved anymore when i click on "save & close". When i alter and save this appointment within the hour it works normally and the item is saved as expected. I searched the settings, but nothing could be found concerning this issue. My OS: Ubuntu 24.04.2 LTS. Thank you very much for your efforts. Wyl. Holland.