Thunderbird Community Forum

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.

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 a professional email address and a gmail address configured correctly in thunderbird. I also have a number of google calendars configured in lightning using the built-in google calendar support (i.e., I am not using the old google calendar plugin). Until recently, when I received and accepted a calendar invitation sent to my professional email address, thunderbird would ask to which calendar I wanted to save the invite. I would select the calendar I wanted and it would be saved appropriately.

A week ago, I created a new google calendar and added it to thunderbird/lightning using the built-in google calendar support. Now, when I accept a calendar invitation, it automatically goes to the new calendar (which is generally not appropriate) without asking me to choose. Furthermore, I am unable to edit these calendar events to change the calendar they are associated with. I have checked the properties of both the new and old calendars and they look the same.

The only seeming solution I found was to make the new calendar read only and disassociate it from an email address, and then undo both those options. For the time being, this operation seems to have gotten back the option to select which calendar invites are saved to. But I would still like to know if this was the correct solution and better understand how thunderbird chooses to save event invitations.

Bisherige Ativitäten: Versuche einen Google-Geburtstagskalender Kalender zu nutzen -> nicht funktioniert Versuche einen Mozilla-Geburtstagskalender einzurichten -> nicht funktioniert

Ich vemute, dass die entsprechenen Kalender keine entsprechenden Daten finden?!

Thunderbird und die Adressdaten stammen aus der gleichen Version wurden aber von einem anderen Windowsgerät unter Windows 10 übertragen/übernommen!V

Problem with recurring events in the caldav (external) calendar. If you delete one instance of an event (today), events for previous days are automatically created.

Thunderbird ver. 140.7

For many years I have had a Thunderbird Calendar, and have a large number of Tasks set up in it. I have now decided it would be convenient to link it to my Google calendar, so that it also shows on my new Windows 11 machine and on my laptop. I've gone through the process described in the "Create new calendars" article, to link the calendars, and the Google calendar is now appearing in the Thunderbird calendar, but not vice versa. How do I get the Tasks in the Thunderbird calendar to appear in the Google calendar?

I am running Thunderbird 140.7.1esr and Firefox 147.03 on my Windows 10 machine, which I used to set up the link. My Windows 11 machine has the same Firefox build, but Thunderbird 147.0.1, and the Google calendar display is the same, but I haven't yet set up the Thunderbird calendar on the new machine.

I have been using ThunderBird on Linux Mint for some time now. I am using Outlook.com for emails, calendar and contacts and I sync with another laptop and mobile phone. All fine until a few days ago when I noticed calendar events were not syncing with my phone. I found one calendar event in ThunderBird had an error when I manually synced with TbSync. The error report did not say anything specific. I deleted this calendar event and TbSync ran successfully uploading 2 events that it had not uploaded due to the calendar sync error. I then wanted to manually recreate this calendar event in ThunderBird. When I clicked on "New Event", the Calendar New Event pop-up window did not appear. When I minimised the ThunderBird window, the New Events was not behind it. The ThunderBird icon pinned to the panel had a "2" in the corner. When I hovered over the ThunderBird icon in the panel, it showed both the ThunderBird window and New Event window preview. When I selected the New Event preview window in the panel, it still did not become visible. All I could do with with New Event preview window in the panel was click in the 'X' to close it. I checked for Lightning Calendar Tab add-on updates. It was up to date. I check the settings. All OK. I disabled and enabled this add-on. Still not working. My Windows habits made me shutdown and restart my device. Still Not working. When I checked the other ThunderBird functions, New Event pop-up windows appeared for Emails and Contacts but not Tasks which had the same symptoms as the Calendar.

(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!

Hello I searched the help articles and was surprised I could not find anything on this. I receive different calendar entry files, in this case a .VCS calendar file, from services I use to use as a calendar entry i.e. a reservation or other. I am able to import this file and create the calendar item in Google Calendar, however if I am on Thunderbird Calendar, I have been unable to discover a way to import. Am I missing this function? What are the steps needed to import a VCS file into Thunderbird Calendar? Thanks Mozilla community! -kozy

if I type a hyperlink into the Calendar description field it does not link to the url.

The mouse pointer does not change from a cursor to a pointy hand when I hover over it

I have also tried using the 'Link' button and that creates a blue/underlined url like a traditional clickable link but the result is the same as before.

Please help troubleshoot the problem, at the moment I'm having to copy and paste every link which becomes tedious when there are lots of links

Thanks

Clark

I hope I can explain this well: Recently, many recurring events from Google Contacts, namely birthdays and anniversaries, now appear in Google Calendar as invitations from "Unknown Organizer <unknownorganizer@calendar.google.com>" that I have accepted (but I have not.) These events keep triggering pop-up notifications. Those notifications do not respond to the Dismiss or Snooze buttons - they do nothing. I can dismiss the dialog box with the upper-right [X], but the pop up gain every time the calendar re-syncs. I try to edit the properties of the event, but the changes do not take. When I look at Google Calendar directly with my browser, these events do not show up, only the proper ones that are listed in my Birthdays calendar.

Why did this happen, and how can I fix this. The un-dismissable notifications make Thunderbird Calendar unusable. I find many similar (but not necessarily identical) complaints going back years, but no actual solutions.

Thunderbird 140.2.0esr Windows 10 22H2 Cardbook address book add-on 100.4

Two questions:

1- Is it possible to assign defaults for ICS import so that you don't have to go through the wizard?

The reason for this wish is question two...

2- Why does the "Next" button in the import wizard appear in a different place in each step? I have a whole bunch of separate ICS files to import due to a workflow issue, and importing them is like playing whack-a-mole. It'd be a huge improvement if the "Next" button could stay in a consistent place so that even if defaults can't be set up, you can just click-click-click in one place without having to dance around with the mouse :)

In the past week or so (since the holidays, perhaps), meeting invites I am getting are not converting the time correctly. I can make it work by manually editing the ics file and changing the first TZID from America/Chicago to US/Central I. The screen SHOWS the correct time (image atached) , but it imports as it the time was UTC

If the DTSTART and DTEND are set to US/Central it doesn't work. The issue is it would seem that the user is creating these with the webmail version of Rackspace email, which he has done for YEARS with no issue. Did something change as of recent that would make this format no longer work?

I have to export every one of his meeting invites (and several other people not using rackspace) and make that change at the top to make this import correctly.

BEGIN:VCALENDAR PRODID:-//Webmail//emailsrvr.com calendar//EN VERSION:2.0 CALSCALE:GREGORIAN METHOD:REQUEST BEGIN:VTIMEZONE TZID:US/Central BEGIN:DAYLIGHT TZNAME:CDT DTSTART:20260308T020000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3 END:DAYLIGHT BEGIN:STANDARD TZNAME:CST DTSTART:20261101T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:6c27a39585ce5041bc8d09d947515f48f3366ce5 DTSTART;TZID=America/Chicago:20260109T123000 DTEND;TZID=America/Chicago:20260109T130000 DTSTAMP:20260108T115204Z CREATED:20260108T115203Z LAST-MODIFIED:20260108T115203Z ORGANIZER:MAILTO:REDACTED ATTENDEE;PARTSTAT=WAITING;CN=Mike Chytracek;CUTYPE=INDIVIDUAL;ROLE=OPT-PART

ICIPANT;RSVP=TRUE;X-NUM-GUESTS=2:MAILTO:REDACTED

SUMMARY:Test Invite DESCRIPTION:Testing\, is this 12:30pm CLASS:PUBLIC STATUS:CONFIRMED TRANSP:OPAQUE END:VEVENT END:VCALENDAR