Thunderbird Support Forum

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?

It's a pity that we reached version 102.1.2 and till now a common problem has not been solved. In email composing window when misstype a word there is the red indicator for mistakes and then by right clicking we get the correct proposed words. In event creation we get only the red indicator for mistakes. Nothing more. It's a pity a so much advertised version to lack such a basic feauture.

Thunderbird recently prompted me that an update was available to v 102.1.2 (although the release notes say it can't be installed this way yet). Not sure which version I had before, but probably the last before 102 as I update when prompted. I wasn't paying enough attention, of course I should have realised it was a major upgrade and backed up my data first ...

Email seems fine but I now can't see some calendar events, depending on the view: Day and Week show no events at all, Multiweek and Month show up to and including 4 Sep 22. I can't see any events beyond 4 September, although there is a multiday event that start on 2 Sep - it's not visible in the calendar after 4 Sep but the details still show the end date as 11 Sep.

Some recurring events have disappeared completely, but one on 31 Aug is visible in Multiweek but not in Month view. So maybe the events are still there but not being displayed?

I had been using the "Calendar Tweaks" add-on, which is no longer supported, so I removed that and restarted Thunderbird, but it had no effect. I also see that there have been a few issues like this with earlier upgrades, but none of the fixes seem to match the current state of things. Would really appreciate it if anyone knows how to fix this.

I have followed all of the instructions by Toad-Hall (as far as I know ) for making categories in my calendar different colors (instead of the small bar at the right).

I have made sure that the legacy is not false I have opened Profile, added folder called chrome, copied the text given into folder called userChrome.css (this was saved as txt, which I changed to css).

I then started Thunderbird and still find that I cannot get full color in my events.

What have I done incorrectly? (I am on a Mac running Big Sur). Thunderbird version is 91.12.0

Thank you for any help.

Referring to this archived post, https://support.mozilla.org/en-US/questions/1304213.

I have the same problem - very difficult to find "TODAY" on my calendar. Mozilla - may I suggest highligh of "Today" as an option people can easily set in Calendar settings?

Post reply provides info on changing the userChrome.css, then says to

"Toggle toolkit.legacyUserProfileCustomizations.stylesheets to true in Config. editor"

How/where do I toggle this? Using TB 91.11.0

Thanks, Greg

With the update to release 91.13.0 the icon to open the calendar disappeared from the tool bar. The icon is now located above the search box. How do I get it back to where it belongs?

Where can I find the meanings of the symbols on an event in Thunderbird calendar? I have some events that show a wrench, and for these events it seems I cannot dismiss reminders. And how do I get rid of it?

Thank you in advance, Stephan

This morning when I opened Thunderbird all entries that have other participants invited have disappeared. The entries without other participants are still there. I am not aware of an update. I can create new events and invite people. It seems the data is just gone somehow, and I somehow need it back.

OS: Ubuntu 22.04 Thunderbird: 91.11.0 (64-bit) How to reproduce: no idea