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I had opened a ticket before (https://support.mozilla.org/en-US/questions/1354662), and got "some" help, tho it was still happening intermittingly, until recently, when it resumed in full force. https://www.screencast.com/t/3sFZdgMyt

I am not running the "Provider for Google Calendar" any more. I did a Google login and asked it to find my calendars, which it did. I have 13 calendars being displayed on the calendar tab. My version is 91.11.0 (64-bit), and yes, I am aware there is a newer version (102) but some of my clients who I recommended Thunderbird to are on it, and hate the new changes and are having trouble with it scrambling email content, cross linking a subject with another email when opening and the like. I won't be upgrading until those problems are resolved.

I am on a new laptop (since the last support ticket) running Windows 10 Home. I keep my Windows up to date and security patches installed.

Processor 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz 2.30 GHz Installed RAM 64.0 GB (63.7 GB usable) System type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display Edition Windows 10 Home Version 21H2 Installed on ‎6/‎11/‎2022 OS build 19044.1826 Experience Windows Feature Experience Pack 120.2212.4180.0

Any help or additional suggestions are welcome. I'm being driven crazy by reminders that won't cancel.

How can I submit a defect for Thunderbird / Lightning calendar? I'm not sure about using Bugzilla myself.

I was typing a bit fast and accidently entered 4 chars for the year on a new calendar event and saved it. After that the event vanished from the calendar. I used Events and Tasks > Find events to locate it but when I clicked on it Thunderbird crashed.

SEE attached annotated SCREEN-SHOT file (Tbird ICS file process.jpg)

Is there any way to process this .ICS file ... "Upcoming Appointment (4).ics" ... directly into the Thunderbird calendar as soon as I click on the link-phrase "Add to calendar" ... without having to save it first and ... then double-click on the saved file ???

My Thunderbird Calendar has started displaying time in 24-hr format (HH:mm), while by Thunderbird eMail continues to display the ‘am/pm’ format (hh:mm tt), correctly using my laptop’s Windows 10 System format, as shown in Control Panel/Region/Formats tab. I’d like to get Calendar back to hh:mm tt, without loosing all my calendar data. I suspect the problem was caused by an interruption when downloading the latest Thunderbird update, so I’ve tried manually downloading and installing a fresh copy of Thunderbird Setup 102.0.3, but the time display format wasn’t fixed. Is there a reliable way to roll back to the previous version without losing what I’ve added to my calendar between the time this format change occurred and the time I first noticed the change?

I am no longer able to import iCalendar appointments I receive via email. Add-ons installed: Google Cal Plug-in, Open Google Cal, and Provider for Google Cal. Disabled (now incompatible): TbSync, gContactSync

I have attempted two approaches: 1. +Add from the email (attachment) itself 2. Save to desktop and then Events & Tasks | Import...

Thank you, Mike

I have just moved from Outlook and I have converted my PST calendar to ICS. When I try to import the ICS file, nothing happens.

The JPG shows where the import stops.

Is there a solution and if so, how do I fix it?

I don't want to have to keep Outlook around just to use its calendar.

Thanks for any assistance.

Jimmy Lightfoot

Hello. I wanted to ask you about the option of switching between calendars in thunderbird I have two gmail accounts and I mainly use one of them altogether with the calendar. Thunderbird automatically loaded the calendar from the other account. I tried to switch it by going to Edit - Calendar preferences - and marking the right calendar account but it still didn't work. How do I do it? I also change the language but somehow the actions don't apply. Is there an option how to save the changes I am making?

Sebastian

I have recently switched from MS Outlook to Thunderbird/Lightning. So far, reasonably so good. One thing that continues to frustrate me is an issue with calendar reminder popups. I thought I was not getting them, but now I think I'm getting them but they disappear. Some research suggests that it may have already been reported that reminder popups will disappear once Thunderbird checks for new mail, and what I'd vastly prefer is for a calendar reminder popup to stay, well, popped-up until I dismiss it.

Am I missing something? Maybe a setting somewhere? Or is this a known issue that has yet to be solved?

I did have a massive problem when I imported my Outlook calendar in that I got reminder popups for every calendar entry back to the dawn of time, and which would NOT dismiss no matter how many times I tried, so I enabled the setting to not remind me about past events.

It seems as if I may have to choose between two unacceptable options: either re-enable reminders for past events, so that when Thunderbird checks for mail any undismissed reminder popups will remain (or re-popup), or live with the reminder popups disappearing (and, the whole reason I'm writing this, I'll miss calendar events if I don't happen to be glued to my computer for the 30 minutes the popup will exist). Is there not some other option?

Hi community,

I am looking for the way to change the start of the week to Monday. The default is Sunday start, but I can't find a way to change it so far.

My thunderbird version is 102.1.0 (64bit) for windows.

I will appreciate your help.

Thank you in advance, KT

Lightning now has a popup when you click on an appointment to edit it. This is a REALLY REALLY POOR IDEA! One more thing I have to click on. One more thing making my RSI worse. I cannot imagine why this new massive irritation has been implemented. Please would someone tell me how to make it stop doing that. Thanks in advance.

I followed the instructions here: https://support.mozilla.org/en-US/questions/1364439 After pasting in the URL of the Google Calendar from the browser, the process asks for the password used for the Google account. I provide the password, but the response is "The credentials you have entered were not accepted."

To confirm that the user name (my Gmail account) and password were entered correctly, I logged out of Calendar on the browser and logged in again using the credentials that were refused by the Create New Calendar process.

This isn't a showstopper, but it would be nice to have the calendar in Thunderbird.

Could you please assist for that issue: I've updated 91.latest Thunderbird to 102.1.2 and all tasks disappear? I can't make return to previous version of thunderbird 91 where is lightning work properly. However, I made buck up copy of my calendar and I can see all tasks in file, but it's not appeared in version 102.

I have 10 calendars to sync and all but 2 are from different sources. myical.ics and Hawks.ics are from the same source (a folder on my web site). Hawks.ics works fine, as do the other 8, but myical.ics does not display (so I don't know if it syncs or not). myical.ics syncs perfectly in google calendar I tried a new profile but the problem remains the same. I have reverted to ver 91.12 and it works okay (as it has for many years). Is this a known problem ? If not, some assistance would be appreciated as I will not update to 102 until it is fixed.

Thank you

Since updating Thunderbird to 102, I can no loger import the lightening calendar. Exporting a .ics file from one pc works but on trying to import it into any other pc or the same one, I get "No importable items found in the file". Any help would be appreciated.

I'm migrating to a new computer and from Windows 10 to W11. I have successfully exported/imported the contacts using the export tool, but cannot figure out how to ex/im the calendar. I am using a SanDisk drive to move the files. Both systems have TBird 102.1.2 (64-bit).

Please give step-by-step instructions to do the calendar (only) ex/im. I do not use the Mail feature.

Using Thunderbird v102.1.2 Platform: iMac running Mojave 10.14.6 email: [edited from public] @earthlink.net

Unable to link to an Apple Mail account (on iCloud). Tried every solution on the web and still nothing happens when I complete the new calendar form (which seems to be different from many of the examples on the web}. Using the same information and entering it into my older Sunbird account, it links up immediately.

This seems like a simple problem, and I am willing to settle for a read-only sync, but after numerous hours of research and attempts, nothing works.

I am apparently doing something wrong in Thunderbird/Lightning. Please advise your thoughts.

Thank you

It's not on settings. I found this css code but don't know how one installs css for thunderbird. I got as far as opening the config editor on the calendar options. But I don't see what entry it is.

Alternatively if I can change the weekend colors that would work well. They are nearly the same yellow as the CURRENT color.

https://support.mozilla.org/en-US/questions/1304213

Thanks!

Just a couple of days ago, Google calendar no longer syncs with Thunderbird. I didn't change any settings and it looks like I can't even re-add the Google calendar events it should sync to.

When I install Thunderbird 102.1.2. (64) on my Windows 10 PC and install a calender (via net) with a link to my Synology DS220j NAS. Thunderbird shows a turning wheel for hours. In the task manager the "inbox" seems not to run. From then on, I get always the turning wheel when I start TB. I could stopp this by deleting the directory "calender-data" in preferencies and delete the Synology-Calender in TB afterwards. I see this behavior on 2 PCs. The Synology Caldav works fine with Outlook and some Androids. Has/had anyone the same issue and a solution how to manage it?