Thunderbird Community Forum

I'm on Thunderbird 151.0.1 (64-bit).

NB: I have been using app specific passwords for all steps with this.

I previously had nine icloud calendars - my own and those shared with me - synced into Thunderbird. Not all had events in them. Then all the events stopped syncing.

I unsubscribed all the calendars and tried to re-add them with the calendar specific URLs. Initially none of them would re-add.

Got a new app specific password.

Followed online tutorials to try using general login to https://icloud.com and https://webcal.icloud.com. Calendars detected, but would not add into Thunderbird.

Then back to calendar specific URLs, and the calendars are adding, but none of the events.

I've tried adding the calendar feeds to Outlook, which works, so I'm pretty positive it's a Thunderbird problem rather than an Apple problem. If it can't be resolved, I'll have to move onto Outlook, but it's a bad time to do that as I want to resolve some Thunderbird email chain dependent projects first.

Any help very gratefully received.

I have a calendar that is shared by 4 devices. If I snooze or dismiss a reminder on 1 device, it should not affect the reminder on the other devices. Please implement a local snooze option at the individual calendar level.

I have 4 gmail accounts in Thunderbird. The calendar shows items from all 4 accounts. My issue comes when setting up an invitation. Pretend my accounts are:

personal1@gmail.com personal2@gmail.com personal3@gmail.com business1@gmail.com

If I want to set up a meeting with invitations from business1@gmail.com, I select the account from the left side of the calendar list, then I create a new event on the day I want. The dialogue box correctly shows "business1@gmail.com in the Calendar drop down box at the top. I can then fill in title, location, category, time etc. But when I click on Invite Attendees, thunderbird has already added "personal1@gmail.com" as the first attendee and is waiting for me to enter the contact of the second attendee. If I add people and send it out, it goes from my "personal1" account and not my "business1" account and any replies come into "persoanl1". Same thing happens if I start by selecting the "personal2" or "personal3" accounts first in Calendar view. It always sets "personal1" as the organizer.

I can not figure out why Thunderbird is automatically using "personal1" as a default and sending from there. I am adding a screen shot to show what it looks like after adding an invitee.

Tip for improving the calendar function of Thunderbird. It is said that the travel time that I enter in my iPhone, for an appointment is also saved in iCloud. Unfortunately, I cannot see or create this in the Thunderbird calendar. It would be nice if this were possible in a future version of Thunderbird.

Tips for improving the calendar function of Thunderbird I use Thunderbird 151.0.1 (64-bits) on Windows 11.

1) In a weekly overview, I do NOT see a date for each day. I would

  really like that. Then I wouldn't have to count and calculate.
 The best place would be just next to the day so e.g. "saturday 12-5"
  p.s. keep in mind that according to the country there are different form
 in Europe 12-5 means the 12th of may, i understood in America it is different.
  or 12 + the first 3 letters of the month would also be fine "zaterdag 12 mei"

2) It is said that the travel time that I enter in my iPhone,

  for an appointment is also saved in iCloud.
  Unfortunately, I cannot see or create this in the Thunderbird 
  calendar.
  It would be nice if this were possible in a future version of 
  Thunderbird.

Just moved to a new computer and am having trouble importing my previuos TBird calendar. From my prior computer backup (created with Macrium Reflect) I have tried moving the local.sqlite backup file to the calendar-data folder in my new TBird profile. However none of my prior calendar events have loaded into my new calendar. Is there another process or file/files I should be using? Thanks in advance. Rob W.

We have bought a new computer from our tech guy before. This time, all was fine except for the Thunderbid calendar. The 20 GB of email files are all there and email still works. Only the calendar is blank. Our guy admits he dislikes Mozilla and rarely deals with it. Is there any way we can find the contents of the calendar? The old computer is still here in our house, but we only have one monitor. I had birthdays, lots of birthdays setup as repeating events. I hate to lose that.

This is odd as we didn't lose anything the last time we bought a new computer from same guy. We already were running Windows 11, so that is not the issue.

When I go to set a custom time for when an event's reminder will happen, it doesn't matter what date or time I put, when I click OK, it sets the date to be today, and the time to the next hour, if I use the date and time picker dropdown thing (clicking the arrow instead of typing it in), the date does set correctly, but the time is impossible to set even like that

Video

If you turn on "Show Timezones" in the New Event window, then close it, and open a New Event window again, the time zones will be shown, but the option will not be checked in the settings, checking it now will hide it instead

I have been using Mozilla Thunderbird for many years on Windows desktop (now Win 11 ver 24H2 for x64 based systems).

In the last week or two Thunderbird has been giving me unwanted reminders for future events on my Google Calendar. (They are Thunderbird reminders, since they disappear when closing Thunderbird). If I try to dismiss them I get an Error Code: Modification failed. Status Code: 2,147,500,037, null Server Replied with 400

Dr google suggestions to get rid of them only apply to iOS or Android, nothing mentions windows. The problem does not occur on my iPhone.

If I just close the reminder windows they reappear in a few minutes.

I uninstalled and reloaded to be sure I had the latest Thunderbird.

1) Sometimes you need to saven a print screen of the email the way it arrived. You do that by making a print screen form the email in the viewer. This is not only compact, but holds data one needs as proof of how and when the e-mail arrived. When you do that on the dat the email arrived or was sent, you can see the time, but not the date. So you have to remember to make a print screen the next day. Because only than you can see a date. Is it possible to show a date of today when an incoming or sent email is viewed in the viewer. 2) Sometimes you want to convert an email to an agenda item next week or so. When you do that, you cab see the full text of the email appearing in the agenda item, but not the date you received or sent this email. That is unpractical. Can you fix this?

Dear Community,

I have a LAN connected desktop Windows 11 computer using Thunderbird 140.10.0esr (32-bit) synced to two different Apple calendars with no issues.

I also have two Wi-Fi connected laptop Windows 11 computers using Thunderbird 150.0 (64-bit) each synced to the same two Apple calendars above. I haven't had any sync issues with these until lately and I believe they are setup exactly the same as the desktop computer above.

For example if I attempt to "Add" a calendar entry I will get the following error message: "If you're seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right clicking on this calendar in the list in the calendar or task view."

I have tried removing the calendar and adding it back but I still get the same intermittent sync issues and get these type of error messages. I have no extensions.

Not sure if this might be a software bug in the latest 150.0 (64-bit) release because 140.10esr (32-bit) appears to work fine on my desktop computer.

Any suggestions would be greatly appreciated. Many thanks.

I used to get REMINDERS for all events/tasks until about some months ago. But now I don't get the reminders for most events/tasks. rearly I do get reminders randomly and ocasionally. I have been using TB (Thunderbird) for many years without any problems. I update TB religeously as updates become available. Please advise the fix. Thanks in advance! Anil Deshpande

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?