Thunderbird-Hilfeforum

If I create an event in a Google calendar in Thunderbird 102.11.2 and the Provider for Google Calendar, it correctly shows me as the organizer with no attendees. The Google Calendar app on my Samsung A13 phone running Android 12 shows it correctly on my calendar. If I then edit the event in Thunderbird and save it (even it I don't make changes), I am listed as an attendee to the meeting as well as the organizer. This causes my phone to show the event with a black interior rather than the normal color for events on my calendar. My presumption is that the black interior means the event hasn't been confirmed by all attendees. If I "remove all attendees" in Thunderbird for the event, my phone shows it correctly again.

I saw a similar problem report on the web about Google adding the organizer as an attendee. It said something about being logged in to "the primary" calendar when creating the event on a google calendar, but with no explanation about what the "primary calendar" is, and the description of that problem isn't exactly what is happening to me.

Removing all attendees or just living with different colored events on my calendar are viable options, but it is annoying. Any suggestions would be welcome.

So, I have to unsubscribe / resubscribe to one of my 4 Google calendars to get it to show for current month since upgrading to 102.3.1... now running 102.4.1 and it still happens, even with add-ons disabled and using the built-in caldav support... only now I have to manually enter my gmail account name every time to re-subscribe to the one missing calendar. After unsubscribing/resubscribing to the one calendar, I went to print my monthly calendar today, found that the popup window was blank (layout:'list') and changed layout to 'monthly grid'... still blank, until I turn off 'events' and the monthly grid shows except empty of any calendar information. I turned the 'events' back on and even the grid goes away and it's a blank window again. I tried restarting Thunderbird and printing the 3 calendars that do show and still get a blank screen with any 'layout: list, monthly grid, or weekly planner... unless I turn off 'events', then the empty grid (monthly/weekly) shows. I now have to go to Google Calendar in order to print my monthly calendar... or to see my 'missing' calendar without having to re-enter my credential information just to see the current month. Almost to the point I HAVE to leave a Chrome window open to Google Calendar because of the issues since upgrading Thunderbird to 102.3.1. I'm aware that Google has changed things (Gmail now Workspaces). Is that the problem with Thunderbird accessing Google Calendar?

In Supernova (i.e. Thunderbird 115 and above), the mini-month calendar shows a little blue dot under every day that has an event on it. See the example screenshot.

If you're like me and you have an event almost every day, then these dots don't really provide any informational content – they're just visual clutter.

There is a way to remove them, using userChrome.css:

   .minimonth-day::after {
       display: none !important;
   }

But obviously that's not so good for users who aren't adept in CSS. Is there a way to remove the dots through a preference, or something in about:config?

I'm not sure when this started happening but Thunderbird (115.3.1, Linux) is no longer sending email invites to my invitees, even if some of those invitees are on my same host. as "Organizer" I do get an email notice to my personal email, which is the default attendee, with subject "Accepted: testing", and body, "mfoley@novatec-inc.com has accepted your event invitation.", but nothing is sent to the other invitees on the list. I checked the error console which showed these messages after I created the event:

NotFoundError: No such JSWindowActor 'DevToolsFrame' 6

1701371572264 Toolkit.Telemetry WARN TelemetryStorage::_scanArchive - have seen this id before: 9c1e2d46-28f9-430d-86d7-398dd0ad3bdc, overwrite: false

mailnews.smtp: error { target: TCPSocket, isTrusted: true, name: "NetworkTimeoutError", message: "Network", errorCode: 2152398862, srcElement: TCPSocket, currentTarget: TCPSocket, eventPhase: 2, bubbles: false, cancelable: false, … } SmtpClient.jsm:442:17

Not sure these apply to creating a calendar event. My server settings are fine, I can send and receive mail to the Thunderbird inbox without problem. I can send email from the Thunderbird client without problem.

Any idea why I can't send event notifications to invitees?

Hello,

I am getting old, my vision is much weaker than it used to be and now I have what is commonly referred to as "Eye Floaters." There's nothing that can be done to fix that, but with dark themes I can usually not see them. Due to a bug (or feature, if you prefer) in the Windows 10 Scaling and Layout settings, once you change them, there's no going back, at least that I have found. Low vision forced me to try to increase the font size in Windows, and in the (seemingly irreversible) process, I set Scaling to 150%. That fixed the problem of text being too small, but it also affected many programs in a negative way. Everything is waaay too big. For example, the menu bar and overall page header in Firefox was massive, taking up nearly a third of the top of my monitor screen. It did the same thing in Chrome only worse. The page footer was almost as big and between the two it left about two inches in the middle to view a website's content. This was very annoying to say the least.

I found a fix for Firefox, by changing the ui.textScaleFactor to 100. However, that did not work for Thunderbird. I found a way to fix it, by going back to Thunderbird 102, and now the email and address book are fine, and the calendar works fine, except for the colors with really bother me. I can't read the screen without looking away to the right of the screen. This is because the colors are too bright, and that is in a dark theme. I don't even want to look at a light theme. It would probably blind me.

Here's what I have. The 1st image is what it looks like, and the 2nd is what I would like to make it look like. Is it possible to do that? Please excuse the low quality color replacement on the 2nd image...

I am probably trying to do something very stupid or it has a very obvious solution, but please bear with me. It seems my Thunderbird install, version 91.1.8 and now updated to 91.9.0, Win10, does not have a calendar function whatsoever. I tried to find the setup of calendar in every menu available. I have been running and updating this install for some time. For some reason , the outlook calendar satisfied me until now, but I am no more satisfied with the inefficient reminders. - it is not in the account setup - there is no calendar icon anywhere - it seems impossible to add the lightning extension to Thunderbird, as it is now supposedly included in TB: but where? Any hint?

After Upgrading to SuperNova (115.3.1) My caledar view just explode... I need like two 25"" monitors to get one week view as one. The columns just turn HUGE and cannot find a way to set them back to a viewable size. is there a way to fix this? Please your help and advice.

GB

hi, I'm using the same TB Calendar setup for a while (3 years), in February 2024, calendar sync became erratic with showing under TB Calendar a warning : your agenda is temporarily unavailable, some events did not sync . but for the last couple of days, I'm unable to sync any events from my yahoo calendar towards TB calendar. the tbsync shows OK, reports no errors in log. could you help please , this is quite urgent matter for me. Thanks lot Phil

I have added my own categories in the Thunderbird Calendar New Event window, but I am unable to edit or delete either default or added categories in the list. How do I edit this list? NOTE: this is different than mail categories.

I face the strange behavior that items added with TB to calendar or tasks which will be synchronized, but those which are made on my tablet or mobile won´t be brought into TB although I can see them in SoGo web interface.

I am using the native CalDAV and CardDAV solution in TB.

Can somebody help?

I now have two issues, one is that on my IMAP accounts with my own domain, both the recent sent and recent received emails in a thread are showing up twice. This doesn't happen with previous emails in that thread or with gmail, exchange, outlook.com, live.com, icloud, etc.... Now, I have an issue where the pop ups for calendar notifications keep popping up non stop and either won't go away by hitting "Submit to changes anyway" or if they do go away, they immediately pop back up again. 115 is a big disapointment for me, it's been highly glitchy, many add ons no longer, some that should work, don't work properly, it was hyped a major upgrade and I see very little that distinguishes if from 102 in any meaningful way except some of the icons are more colorful. Is there a way to go back to 102? Either that or I may start using Mac Mail again due to all these bugs.

Hello,

In the Agenda view, I once made the "Find events" pane (shown in the answer to this question) disappear by reducing its size down to zero. Now I can't bring it back on. I love my big full-screen calendar, but this pane was still nice to have sometimes! I guess a toggle to display this pane should be accessible in the menu (e.g. View -> Agenda -> Agenda panes -> Find events).

Thanks for the good work. I love the new 102 version!

I am able to accept invitations from new appointments ("This message contains an appointment invitation", with the regular action buttons).

But if it comes to appointment update messages, I have no action buttons. Only the message "Diese Nachricht enthält eine Termineinladung".

Please see the screenshots.

I've already tried with troubleshooting mode (without addons etc. https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird#w_starting-thunderbird-in-troubleshoot-mode), this makes no difference, the issue persists.

TB Version is: 115.1.0 (68-Bit on Windows 11)

I copied and pasted a cell from a spreadsheet into a task and now I can't figure out how to get rid of it. There is a red box with the amount in it. I can delete the amount but the red box remains. This has been a problem for a long time and I was hoping someone had a solution. Thank you.

This morning there was an update to Thunderbird. When I reopen the program I can no longer see the right end of the screen. There is no toolbar to scroll over to see that side, and I've been unable to resolve this in the settings. I am using Density > Compact and I do not have any add-ons installed. See screen capture. I will have to stop using TB if this can't be resolved.

I've used the Thunderbird calendar for appointments for years and today had my first issue when I tried to set an end date for a recurring appointment. Once I edited the appointment (all occurrences) all appointments in my calendar were covered by a colored grid and were unreadable. Fortunately I had backed up the calendar a couple of days ago so I was able to restore the calendar by restoring the calendar data file from my backup. I attempted to set an end date for the appointment again but the calendar became corrupted once again. I am attaching a screenshot of what the calendar looked like after trying to set an end date for an appointment. I assume this is a recently introduced bug in the program, if not is there another workaround besides retrieving a backup for the calendar data file?

After adding my nextcloud calendar via CalDAV in Thunderbird 115 (no plugin) I can perfecly add or remove events to the calendar and they get synced well, however, if I receive a notification the button to dismiss them does not do a thing. Firat I thought this is related to Birthday reminders, but it is also true for events I have added to the standard calendar via Thunderbird.

Sorry if this is a double post, but I only found similar issues with older versions of Thunderbird and a plugin for the calendar.

I have been using Thunderbird and Lightning on Windows and Linux computers for several years. I just installed Thunderbird 102.6.1 on a new Windows 10 computer. I've spent at least an hour trying to find and install Lightning. I cannot find it. Web searches say to look in add-ons, Tools, the hamburger menu and Events and Task ... not of those exist in my Thunderbird.

How do I find Lightning?

I added the United States Holiday Calendar to my Thunderbird Calendar.

As it has zilliions more holidays than I care to see (World Pneumonia Day, for example) I would like to remove it. I added it as an internet supplied calendar, not stored on my computer.

Can someone please tell me how to remove it entirely? Also, is there a different, more modest calendar I might add somewhere out there?

Thanks in advance for the assistance. I have searched for a way to do this but have not found anything.

Jeff