Thunderbird Community Forum

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.

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, 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

Hello,

After moving my Thunderbird profile to a new computer none of my accounts can authenticate. I followed the instructions here: Move Thunderbird data to a new computer, using "An alternative method for manual transfer between Windows 10 and Windows 11 computers." What explains the response in the attached image, "Something went wrong," and how can I fix it? Happens when I click "Next", the first step to log it.

I have a related problem with other accounts set up in the profile. This one is using Oauth2. I tried switching to password, and hand a similar problem. I tested the connection to the server in Settings for the account and it was successful. Same for the others. They all authenticate successfully on my old computer.

Thanks...

I have had to replace my laptop and am trying to set up my new one with an existing outlook account on the new device.

It is a Windows 11 device.

I have used the exact server settings etc from my old lap top for the outlook account but get a variety of error messages.

I have explored the use of the Account Hub and also switched that off/on. Same situation.

I attach five screen captured images so far. The first is the version of TB. The second is the window that appears when the account tries to connect and thirdly the small pop up that appears bottom right hand corner of laptop. The remaining two show the server settings and that they passed the connection test.

Other email accounts (gmail & yahoo) have both been set up on the new device and work well.

The account worked on the old laptop and continues to do so. I have set up the outlook account with, to the best of my knowledge, the same settings. The old lap top was a windows 10 device. The new laptop does not have a third party antivirus on it.

I am baffled as to what is happening and what I should do next. Any advice would be great.

I have been trying to add my accounts to Thunderbird and had good success with gmail but wasn't able for Microsoft accounts. As I said in another thread (can't find the message anymore), I have 2 microsoft email account (one live.ca and one hotmail.com) and they both don't work. I was able to add them in Outlook desktop app and EM Client (a non open source software i'd rather not use) through IMAP with success. IMAP is activated in both accounts and as per Microsoft documentation the server is supposed to be outlook.office365.com on port 993. eM Client magically discover IMAP settings to imap-mail.outlook.com instead. Thunderbird opens an OAuth page and then it redirects from microsoftonline.com to localhost and fail with "Unable to connect".

2FA not activated in one account, if that matters. I have nothing running on port 80 if that matters.

With 03.04.2026 they began to notice that the attached emails in eml format (the attached emails have attached documents, mostly pdf) sent from yandex mail stopped opening. Everything used to open well. Eml also does not save to disk. If you send the same files via Gmail, everything opens. Program version 150.0.1

Hi, I use thunderbird as both POP and IMAP through gmail. I keep all my emails on my POP thunderbird desktop client. I use IMAP on my thunderbird laptop client, iPhone, iPad via Apple mail when remote, then download the emails to my desktop.

What I want to do is read emails and set them to archive on my IMA laptop, iPhone, iPad. I know Gmail tags the archived emails. How do I stop thunderbird from downloading the archived emails to my POP thunderbird desktop client?

Thanks! Art

I have connected a Google Workspace (Gmail) account to Thunderbird, let's call it scott.harper@myorg.org. I am able to send, receive, and reply from this account as expected.

In my Google Workspace configuration, I have an alias address forwarded to my account, let's call it info@myorg.org. I receive messages addressed to "info" just fine. But when I send or reply to messages addressed to "info", I'm running into a problem.

In the Account Setting I opened Manage Identities, and added info@myorg.org as an alternate identity. I then edited the Private Data for that identity so that the "Reply from this identity when delivery headers match" option is checked, and set to match info@myorg.org. See attached image.

When I reply to an incoming message, the From field appears to be (sort of) correct... it shows from info@myorg.org, but next to it (in italics) is the primary account identity, scott.harper@myorg.org. See the other attached image. This is also the case when I compose a new message and select the info identity.

In both cases, when the message arrives at the destination inbox, it is from scott.harper@myorg.org instead of "info".

I'm assuming I don't have the matching rule, or some other setting configured correctly. Would appreciate any other tips/ideas.

I've noticed that if I attach a file to an outgoing message then use ctrl+enter to send the message, Thunderbird also opens the attachment. How can I prevent it from doing the latter?

I have daily tasks that I dismiss every morning. When I open the Tasks tab, all the dismissed tasks are still there. Is there a delete the completed tasks so they don't clutter the task list? The attached image shows my list of dismissed task, all in red.

I am trying to add an email address to thunderbird it is an outlook email address [edited]@outlook.com I have checked the address and the password and both are correct however thunderbird says that the configuration is incorrect and will not accept it. also I have it open in another browser window will that cause problems ?

I am unhappy with version 150 of Thunderbird. In earlier versions, I was able to access the full range of emojis when writing an email. That is no longer possible; I can now only access a few. The integration of add-ons with Thunderbird isn’t working properly. After adding the German dictionary, Thunderbird froze; after adding ImportExport Tools, Thunderbird not only crashed but also wouldn’t start up again.

Everything has been fine for several years but this morning I now get error: TB could not connect to server mail.twc.com, the connection was refused. Spectrum says everything is good on their end. What do I have to do to "fix" Thunderbird? I can't send or receive any emails from 5 accounts with Spectrum and the emails are there when I log in at WebmailSpectrum.net..

送受信メールが表示されなくなりました。 テストメールの送受信は問題なくできていますが、thunderbirdメールソフトには表示されません。 XserverにWEBメールは生きています 表示されない問題を解決するためにAIに聞いたところ、「受信トレイ→右クリック→最適化」を実行したが、それまで表示されていた過去の受信メールがすべて消えました。 本体からメールが消えたのかAIに改めて聞いたところ、画像の「INBOX」の状態になり、消えてしまった可能性が大きいとの回答でした。 ウィルスバスターを導入しているので、それが干渉した可能性も考えられます

対策として「アカウントを削除して、新たに設定しダウンロードを提案されました。この方法で復活するでしょうか

https://g.co/gemini/share/6a7da4881c86

In one email account the arriving messages arrive shown as "read". before they showed "unread" and were bold. I've tried but can't figure out how to reverse that. a different email account on the same reader shows new messages