Thunderbird Community Forum

I'm on a new Windows 11 desktop with two monitors. Everything's been working just fine up until around 26th April (two weeks ago) when the native Thunderbird new mail notifications started appearing in my second monitor, rather than my main display. I had made no changes at all myself.

I've been through all the fixes suggested via Google (toggling the displays; checking Windows notification settings), but none of those fixes have made any difference. I switched to using Windows system notifications for a while, but I really don't like them.

Might this be something in a Thunderbird update itself? It just doesn't seem to be detecting the primary monitor at all. All my other app notifications continue to show on the primary display.

Has anyone else encountered this or have any other solutions I could try?

Thanks, Averill

I've successfully connected to a hosted Exchange server through EWS and NTLM authentication (kudos BTW). But there is a problem - often during operations against EWS I'm presented with "Login to account XXX failed" "Login to server YYY with account XXX failed". I can ignore it (cancel) and it will work for seconds or minutes but eventually reappear. Sometimes it's very frequent, sometimes is here and there. TL;DR; connection works, I can read directories and e-mails.

From looking at development tools I see these scenarios: 1. POST requests return 200 always (no messsage of course) 2. Eventually a POST would return 401. Then Thunderbird issues a GET, it returns 401 as well but response includes header WWW-Authenticate: NTLM XXXXXX. Then another GET is issued containing header "Authorization" with the value from previous response. This time it gets 200 and continues without POST requests without a dialog. 3. Sometimes there are more POST requests with 401 (I assume in parallel) before a GET is issued and then I see a dialog. Sometimes it recovers (regardless of whether I cancel or retry), sometimes gets stuck with 401 with dialog reappearing each time it tries something. This case it's similar in sense that thunderbird issues GET with 401 and WWW-Authenticate header, issues another GET with Authenticate header but still gets 401.

If I had to guess I'd say the problem happens when POST requests are issued in parallel, not sequentially. OTOH it might be a problem at the server, but it isn't very likely.

All folders are shown ticked but they do not appear. I can view one folder at a time with Go>Folder>my account>Inbox(say).

Using IMAP. Firefox 151.0.4 I don't know what I could have done to cause this.

Other than being slow to download my emails now for a few months, TB was performing well until a week or so ago. Now it also won't open the downloaded email when I click on it and the TB freezes up so I can't close it out. I have tried restarting computer multiple times and it works for one or two emails that I can open and then starts freezing up again. Makes using it almost impossible. I have security Windows 11 Defender only and have had it the entire time when it also worked well.

A couple of months ago Thunderbird installed a new version (150.0.2) that made me enter a new identity. After I did that, I tried importing the e-mail folders from the earlier version (139.0), but totally without success. So I tried re-installing an older version, but this also, was no longer able to import the folders stored on my hard drive. What can I do????

I'm reading the question Thread's broken sorting makes it completely unusable and I have to agree that order of messages within thread is not the best one - ascending. For example, I am subscribed to a forum messages and I'm getting all the notifications for a topic to a thread. Currently I have like 85 messages in a thread and to see the newest one I have to scroll all the way down each time - scrolling 85 messages is a lot and it is getting worse because the number of messages keeps growing. After I've seen the newest message, I have to scroll all the way up to close the thread. (or am I missing something - perhaps some shortcuts?)

But I guess for some such ordering is obviously fine. Hence, I guess, an option how to sort threads might come handy. Perhaps even having a default sort order and an override per thread?

PS. funnily enough, I'll have the same issue with notifications for this question :)

I've been using T-bird since nearly the beginning, and I've always been able to search for a string in a message by hitting the slash ("/") and typing my search string. This appears to be a shortcut for Ctrl+F (on Windows, currently Windows 11).

With T-bird 151.0, when I press "/" it is ignored... the first time I use it. If I press Ctrl+F and do a search, then I can start all subsequent searches in that message with a slash. If I close that message and open another, I must again use Ctrl+F the first time I want to search.

My muscle memory constantly forces me to type "/<string>" to search, but since T-bird ignores the slash, the following characters immediately take action, usually causing me to navigate away from the message, mark them as read/unread or as junk, etc.

Since I can use "/" on subsequent searches, I'm thinking this is a bug, not a feature removal. Can this be checked/confirmed? ...thanks!

Hi , I am using the MacBook Pro M5 which is running with macOS Tahoe 26.5 . I have installed Thunderbird mail with version 150.0.2 . After the initial installation with only one account with few mails in the inbox I found the App opening time is abnormally high & is more than 1 minutes . I have removed the mail App few times & re installed it ( even I have re download the app from net again) , but the problem remain same .

I have removed the old folder & files from - ~/Library/Thunderbird/ , ~/Library/Application Support/Thunderbird/ , ~/Library/Caches/Thunderbird/ , org.mozilla.thunderbird from ~/Library/Preferences/. before the re installation & re started the laptop , but no improvement in results .

Also in mail setting references → Unchecked the option - Enable Global Search and Indexer Disable all Extensions and Themes under Tools → Add‑ons & Themes (No Extensions is installed) .

Just to inform that the apple mail is working fine in this laptop .

After all the above trails the results are same , the app once quit & re start - it takes around 1.5 minutes to open after which the app works normally with out any problem . Please suggest if any solution is available for this problem . Best Regards Gautam Banerjee

I just download the latest version of Thunderbird, and try to add my pop mail account. But after i enter the info of outgoing server settings, the Continue button is gray and can't be clicked. once I try the test, it says that Thunderbird failed to find the settings for your email account. Can't find a server. Also i find that there is no place enter the password of my mail account.

Hi, For at least two weeks, Thunderbird has been stalling, not responding, and crashing (but not the type that sends a crash report). Every time it begins downloading messages, it stalls. I compacted folders, checked what your forums recommend, and still nothing. I have Thunderbird on a Win10 XPS laptop and a Win11 Dell desktop, new and full of specs. Uninstalled it and reinstalled it. Same. There has to be a bug in the new version, my guess, since it was working perfectly until the latest update. See images from my Win10 laptop right now. Please advice!!! I am at wits' end since I need Thunderbird to do my emailing!!! Or else I will have to find another email handler.

Maria Elena [edited email from public] @csun.edu

Comcast has sent our accounts to yahoo. Email name remains the same. I wish to continue with Thunderbird. I haven't been able to and don't want to lose all my Thunderbird settings and files. They have been transferred to yahoo mail.

Здравствуйте!

Пытаюсь подключить Яндекс.Почту к Thunderbird, чтобы скачать письма с Яндекса на компьютер.

Проблема такая: при добавлении аккаунта Яндекс.Почты в Thunderbird меня почему-то перебрасывает на авторизацию Google. Возможно, это связано с тем, что ранее почта была мигрирована на Google-аккаунт с таким же адресом и доменом, либо ящик Яндекса сейчас неактивен (он не оплачен, там просто старые письма лежат) — точно не понимаю.

Подскажите, пожалуйста:

Почему при подключении Яндекс.Почты Thunderbird может открывать Google-авторизацию? Можно ли принудительно подключить Яндекс.Почту вручную? Если ящик Яндекса был ранее связан/мигрирован с Google, есть ли способ всё равно скачать письма именно с Яндекса?

Моя цель — получить локальный архив писем с Яндекс.Почты на компьютере. Буду благодарна за пошаговую инструкцию, что проверить и как правильно настроить подключение.

I sent an email to my mechanic today and another site attached a CC to their Website. It is weird I didn't send an email to them support@bloominto.co, yet I received a reply and there was a CC to my mechanic in it.

How is it possible?

Hello, Thunderbird has already imported my Hotmail account. How do I import my Outlook.com account? It was offered to me the first time, to add another one but for some reason, I could not. Thanks

Hello I am having difficulty in sending message for 2 of my email addresses through Hostinger. My ither accounts through Hostinger works fine. See pic attached for the error message. Please help and advice. Thank you