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Have: When quoting, "start my reply above quote" and place my signature "below my reply (above the quote)" but signature continues to show below the quote.

What have I missed in this setup?

hi today thunderbird started showing yahoo popup login and after adding credentials i always get "something went wrong.We could not sign you in. Try again from a different device." Also popup once closed it opens instantly.

i can sign in normally from browser. thunderbird version is 147

is there any fix about this?

thanks for any help

regards

My previous computer crashed and got a new one (Win 11 of course - new for me).

I downloaded Thunderbird. With the help of an Earthlink (my email) tech, all but one of my emails (gmail) were entered. Then I downloaded and began reading them.

The first thing I noticed was the Next and Previous buttons are missing (or placed where I don't see them).

The second thing I noticed is that when I click on one email to read, all the emails in the respective Inbox also open. This is very annoying.

I also hope someone can tell me the info I need to add a gmail account. (I rarely use it, but there two websites which require a gmail email to log on.)

And I had made a T-bird "backup" but haven't used it yet. I'd like to IF I can locate it.

P.S. Is it possible to shut off the AI "help" while writing this. I find it annoying, slows me down.

Hello everyone,

I am using Thunderbird with a work email account that is based on Gmail (IMAP).

My question is: How can I make sure that I will still have access to my emails in Thunderbird if my company deletes the Gmail account in the future?

Specifically: 1. Which Thunderbird settings ensure that emails are fully stored locally? 2. Is “offline use” of folders sufficient, or are there additional steps I should take? 3. Are there any caveats with Gmail/IMAP I should be aware of?

Thanks a lot for your help!

Hello,

I would like to report a problem I experience using Thunderbird on a Mac (see configuration below). In some circumstances (that I am not able to determine), when deleting one message in the inbox (unified Folders mode), the message list is not updated/refreshed i.e. the deleted message is still appearing but in fact the content is the next one. This is very annoying as we may remove messages wrongly: the messages we want to delete are not the one we see in the list.

I am using Thunderbird 140.7.0esr on a MacBook Air Sonoma 14.7.1

Are you aware of such a behavior? What can I do to overcome the problem?

Thank you for your help

Best regards

P. Clarysse

Thunderbird hasn't saved any of my Microsoft Emails for days and now it won't send. My other accounts (Gmail, AOL, etc.) work fine, however. How do I make the fix so I can send and also sync my Sent emails so they show up! I just get long hold ups and error messages.

Am having prblems authenticating oauth microsoft 365 from tbird ubuntu.. Everything was working fine but suddenly getting auth failures. Phone works fine, and all software is up to date.

I need to fix TB to send/receive/save emails after a power failure today, Grid outage at 13:40, Power restored 13:40. Computer restarted, TB opened but will not perform any send/receive/save tasks. TB Message Send gets Outlook notification - Authentication failure. Went to Outlook email, logged back in, test email I had attempted to send by TB is in Outlook, plus new emails in Outlook, but none in TB. Checked for TB updates, current as of Jan 15, 2026. Restarted computer twice. Outlook email works but TB does not perform any tasks. I lost no TB emails in my messages before the power failure, they are all still in my TB messages. I have Firefox Browser and Windows 11. I love TB. It has had cardiac arrest. Help. Ann

Hi! I am trying to use the Thunderbird application to help me view a huge '.mbox' file from an email account that is no longer active. I have the entire file saved to my computer as I downloaded it before the account was closed. Can you help me access those files? I am working on a huge project and really need to look for date sand times of emails sent in the mailbox so that i can piece together the timeline of the project. I would greatly appreciate this!!!

Have no idea to whom I was chatting a week or so ago, but outlook.office365.com was recommended to me as the incoming server setting for Outlook.com. Set TB that way and used it for a week or so. TODAY got a "failure to authenticate" error from TB (have had many such errors before). Went directly to Copilot, as I thought it would be the most authoritarian place to clear up Microsoft problems. It provided the informaiton below: Official Outlook.com Thunderbird Incoming Server Settings (2026) IMAP (recommended) Settings Server name: imap-mail.outlook.com Port: 993 Security: SSL/TLS Authentication; OAuth2 Username; Your full Outlook.com email address

Why this is the correct server Outlook.com, Hotmail, Live, and MSN accounts do not use outlook.office365.com .

Set outlook account incoming server to imap-mail.outlook.com and reset TB Immediately got: Mozilla Thunderbird Thunderbird Authentication failure while connecting to server imap-mail.outlook.com.

Can someone please tell what's going on?

Went to search for someone in the Quick Search and it did not bring up their emails in the folder, which exist as I confirmed by sorting alphabetically and finding them. Why is this?

I have a Fedora laptop which has run Thunderbird on KDE Plasma for years.

I typically put the Thunderbird window on my big monitor where everything works as expected.

When I move the window to the laptop screen (or unplug the laptop and use it without the big screen), I can navigate the folder list in the left-hand pane, but the list of emails and body panes on the right do not display, only the Welcome screen.

When I put Thunderbird in Help > Troublehoot Mode, all works as expected.

The only special add on I use is the Get All Mail button.

This morning, I repeatedly received an "Authentication failed when connecting to outlook.office365.com" error. I removed the Outlook account from Thunderbird hoping to solve this by reconnecting and starting from scratch. Upon entering my email and password, my configuration is successfully located in the Mozilla database, but upon selecting the IMAP configuration and after a brief password check, I received the error message "Unable to log in at server. Probably wrong configuration, username or password". Is this an issue on Outlook's end, or is something not set up properly?

Can't access or re-add my existing outlook account to thunderbird 147.0. Tried using my password, an app password. Nothing. Keep seeing the same error over and over again.

My Hotmail account suddenly stopped working today (was working yesterday). Thunderbird shows a popup saying authentication failed, but doesn't ask me to try a different password (not that I changed it recently).

The error details are only visible in Error Console:

Got an error name=oAuth2Error, the server said: Authentication failure: unknown user name or bad password.

Using server: outlook.office365.com, port 995 (POP) user name: ****@hotmail.com SSL/TLS, OAuth2