Thunderbird Community Forum

Keep on downloading Mozilla Thunderbird Release but it keep coming up as ESR. How can just have Release? My email account with Mozilla is [edited email from community support forum] @pc-q.net can you reply there.

Good morning . . . I have recently switched from an old Windows 10 machine to a new macmini, and have switched my Office 365 account over to it. Simply stated, Outlook is not working, and I have no desire to continue with it. Will Thunderbird suit my needs? Will it allow me to import my old contacts and emails, both from my Windows machine and the new MacOutlook?

A few days ago I lost all of my saved email messages, plus "sent" emails, and "deleted" emails. I had important information stored there for future use. I am hoping to be able to retrieve it. Any help would be appreciated. Thank you!

One of my two outlook email accounts no longer appears in Thunderbird, which says it is authenticated but not connected. This happened suddenly. I can still get the messages by going onto outlook.com. How do I get it back on Thunderbird?

I have a TB installation reading mail from a webmail set up. The files are in an inbox, 26,000 plus. They have also been transferred and readable in TB. They have the following format. Subject: [xxxxxxxxxx & yyyyyyyyyyyy zzzzzz ] New User Registration

Body text -

New user registration on your site xxxxxxxxxx & yyyyyyyyyyyy zzzzzz :

Username: selected_nickname9481

Email: username@provider.com

How can I extract or retrieve the "Username:" variables and "Email" variables in the Body text to set up a mailing list or Address Book. Thanks!

I've been trying to move my Thunderbird data (148.0) from a Win10 to a Win11 machine. I've meticulously followed both the methods outlined at http://mzl.la/1ApHiU3. I have copied my original profiles.ini from the ...AppData\Roaming folder to that location on the new machine, then corrected the drive locations in the file (see attached profiles.ini image). (yes, the correct "j4sqsccb.XXXXXXX" folder is copied to the new installation's root: a bulky several-GB)

In order to try to replicate my original computer's admittedly-awkward installation from long ago, I have added the suffix " -p -no-remote" to the desktop icon's Target field. And on startup, the new T-bird does properly show my original profiles in the Select panel - even though I only ever used the one that functioned correctly, identified as 1 in the profiles.ini file (see Choose User Profile image, IDs X'ed-out).

However, on selecting that profile on the Win11 machine, Thunderbird just takes me to the account setup screen, as if it's unable to locate or load the account settings for that profile.

I'm only doing this clunky method of copying-over out of ignorance; I'd be very happy to simplify the mess I'd created decades ago with my original installation. OR if you think I'm better off wiping all evidence of past installations to start from a clean install, I'll be happy to do that. Please let me know if you need additional info I've failed to provide here!

Also adding images of my ...Roaming\Thunderbird\Profiles folder and Installs.ini file, just in case!

thunderbird 140.8.1 will not run unless restart of mac mini ios15.7.4 sequoia. only runs once then will not run email again.

Can I back up to a previous version that did run or is there an issue?

On Bazzite, currently I'm running Thunderbird version 140.8.1esr.

I only have one account set up in Thunderbird, which is my iCloud email account. I followed the steps in this guide to set up my iCloud email account in Thunderbird, and it went very smooth.

No matter what I do, no matter how many times I mark all folders as read, the icon in my dock ALWAYS displays a new mail notification.

I've removed and re-added my account twice, and have uninstalled and re-installed Thunderbird from the Bazaar store. iCloud on the web also does not show that I have any new messages.

Menu: Message>attachment>delete all

When delete all attachments for a message, when delete all attachments, auto move to the next message.

This behavior is annoying, usually I first delete all attachments and then reply but message position is in the next message.

This behavior is for example for version 140.7.1esr and 140.8.1esr.

102.15.1 work fine.

Hey, everyone!

I'm having a problem with my Google calendar on on of my Macs.

O have an M1 Mac Mini and I can access all of my calendars through that system. However, I also have a 2013 MacBook Air running Big Sur 11.17.10 and I can only access two out of my four calendars via Thunderbird 128.14.0esr on that machine.

The four calendars I have subscribed to are my personal calendar, US Holidays, Stardates (because I'm a Trek fan) and Phases of the Moon. On my MacBook, I can only access or view my personal and US Holidays calendars. The other two can't be found by Provider for Google Calendar.

Anyone know why this might be and how I ca fix it? Seems silly that an Provider wouldn't be able to access these calendars since the same version functions on both TB 128 and TB 140.

Thanks!

hi I have a mail adress rodeo1958@gmx.fr on caramail all is working but if I add a mail account it does not succeed , : problem of identifier or password... what happen ? i have check the email and pass both are right. thanks for helping me ... marc

I get this error ALL THE TIME from TB. Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp-mail.outlook.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. Copilot says that TB is NOT recognizing my personal Outlook email account as a viable SMTP account. Been on line with Copilot for couple of hours without success. Does anyone at Mozilla have anything to offer me?

Today I have experienced a problem downloading new messages, bulk, trash or anything else in my mail server into thunderbird. it requires my primary password and then my regular password. I just set up my primary password so I understand why it is asking for that, but I don't understand why it is also asking for my regular password before I can get access to the mail server that I am using. the regular password was set up on 6/17/24 and until today it was working fine.

Thunderbird has stopped receiving messages from @embarqmail (Sept/25) and @gmail (Mar/26) stating the password is incorrect. The passwords are correct as I can still access these accounts online. I have repeatedly updated the passwords through the popup message, but my emails are still not delivered or sent. Lucille

I just wonder why all mails suddenly seem to be totally disappeared. Without any warning. Althoug there should be 20 mails (which figure has only been creasing for the time being/already for hours. :( Also all ready models/musters seem to be deleted. So I can't add my usual signature as easy as usuaylly:

Heli Mäki [edited] FINLAND tel. [edited] < [edited] @gmail.com>

/edited address, email and phone# from public community support forum

I have been using Thunderbird for ages now with no problem, but I suddenly realised that no recent emails were appearing from my Gmail account. I have tried everything suggested on line to resolve the problem, including uninstalling and reinstalling Thunderbird, and deleting and re-entering my acccount details but neither the IMAP or SMTP servers will connect to Gmail. I have reset all of the server settings on Thunderbird, and have checked that Gmail is IMAP compliant (which, apparently, is is now automatically). I have spent hours trying to sort this out and am just at the point of abandoning Thunderbird completely, but I am loathe to do so if there is a solution. The latest error message i have received is "Unable to log in at server. Probably wrong configuration, username or password" but I don't know what else I can check or change.

I have Version 140.8.0esr | Released February 24, 2026, for Linux Mint (up to date)

I have a CardDAV address book on a Nextcloud instance that i want to sync to Thunderbird.

When i open Address Book and the clikc on " Create a new address book" the Account Hub modal window opens. None of the 4 options (including Add Remote Address Book" do anything, i.e. I can click as much as I like but nothing happens.

Hi

When Thunderbird is started maximized it overlap taskbar if is set to hide and taskbar won't show until Thunderbird is minimized and maximized. Another way is to press the Win key two times. Then the hided taskbar can be shown/use. The same thing happens to Firefox. Only when is first started. Then if Firefox is minimized and maximized, press Win key two times, press F11 two times then the hided taskbar show/hide normal.

It is a setting that can be changed to start Thunderbird and Firefox in full screen and do not overlap hided taskbar?

Hi there. I'm looking for a shortcut that takes me from the folderlist pane to the message pane and the first new message, when I'm on the inbox folder. The tab is not good. It moves between to many fields/options.

regards bjarne

I would like an apple (icloud) account to thunderbird, but it doesn't work the automated way. I changes password and made sure that account data and password fit. Anyway I got an error message and wasn't able to connect. I had no issues with outlook and the apple account, so I'm wondereing what I need to adjust or add. I want to finally switch all my accounts and systems to open source and getting them connected is my first step. Any help would be appreciated. - Thanks in advance!