Thunderbird Community Forum

I newly installed Thunderbird 148 on a Windows 11 laptop (after uninstalling a previous installation under a different user). I connected to a Yahoo Mail account and downloaded all the emails from the Yahoo inbox.

Emails with attachments (.pdf and .docx) visible online in Yahoo Mail do not include these attachments when downloaded to Thunderbird.

I received an email with 7 attachments. 2 of the attachments had similar filenames (not identical). When I selected "Save All" the 2 similar filenames were not saved. See screenshots for details

So here is the issue, I understand the security has been changed to OAuth2, and both the inbound and outbound settings are such. But Thunderbird wants me to log in, OKAY, it will send me the screen with my email account, but will not change after clicking "Next" to allow me to enter the password, regardless of how long I wait. If I click a second time I get the message " Edge: Too many requests"

What needs to be done?

I received an IMAP email as normal, from an email address that I often write with. What I always do: the IMAP inbox is forwarded move on arrival to the local inbox. It had an attachment, and I downloaded that as normal. Then after 5 minutes I wanted to start work on the reply to the message in the local inbox and ... the message was gone. Nowhere to be found. Not in the IMAP inbox (of course), not in junk, not in trash. I looked in the on-line IMAP account, and there the message was present as normal.

Then I searched for the email and there it shows: in "Inbox". And I see one strange thing that I never saw: column Message threads says: "This subthread is ignored". So that is the problem. Probably I hit accidentally some key (k ?) and this caused the "kill".

Now how to un-ignore it? There is this Help page: https://support.mozilla.org/en-US/kb/ignore-threads and it says: "To un-ignore a thread that has been marked ignored, select a message in the thread, right-click on it and again select Ignore Thread. ". But right-clicking the email (in the search results) shows NO such option.

What can I do? Thanks!

First-time round I though the problem was Gmail - hotmail and my ionos webmail seemed OK

MS CoPilot ran a significant "tweak this" process over a couple of days but it was ineffective so remove and replace was applied. It was a hassle but seemed to work, but today problems are reappearing.

A Reply-to does not find the reply address but conncocts one - basically the "From" address. The resulting email does not have the usual header nor any space to insert text. The sent reply does not end up in Sent but does sit in Inbox

I got a new computer, and after installing Thunderbird, it took forever to get it set up with the information from my old computer. Now, the unified folders aren't working. All of my mail is going into each account's inbox. There's no option to choose anything on the unified inbox, only the same thing as the other inboxes have. Help, please!

In the latest version 148, the moment I enter the login credentials for a second Yahoo account and click continue, Thunderbird simply copies the mail folders from the first Yahoo account and does not show the mails/folders for the second yahoo account. This is despite the fact that Thunderbird displays the correct name for the second Yahoo account as well as the correct username for the second Yahoo account in the account settings. I have tried: 1. Setting the 'mailnews.oauth.usePrivateBrowser" to True in the Config Editor. 2. Deleting and adding the second Yahoo account after restart of Thunderbird as well as restart of the PC. 3. Manually configuring the account settings while adding the second Yahoo account.

Please advise what else I can try. Thanks and Regards

I am a club secretary. I want to send a small (under 100KB) Word document, as an attachment, to my committee mailing list of 7 people, which includes myself. I cannot get Thunderbird to do this. I can send the same attachment to just myself (or just my wife) but it seems that when I put multiple addresses, either as a mailing list or individually entered, the email isn't received by anyone. There is always a copy in my sent folder. I am getting very frustrated by this and would appreciate some help. Many thanks, Alan

I received an email with 7 attachments. 2 of the attachments had similar filenames. When I clicked "Save All" the 2 similar filenames were not saved. See screenshots for details

I am working in Japanese but this site changes to English version and I cannot ask question in Japanese. So I do not know how English words are shown but I try to translate Japanese message to English. I have been using this Mozilla thunderbird for many years and have installed in several PC's. And now I bought a new PC Win 11. I downloaded software and message like that Account setting is found in Mozilla ISP data base. I proceeded as instructed and acknowledged warning. Then message is shown like this cannot logged in server, check if username, password or setting. I renewed password but still same message is shown. I would appreciate kind help.

The https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo article is ambiguous. Does mailnews.oauth.usePrivateBrowser only need to be set to true if you have 2 accounts from the (Yahoo, AOL, ATT) set? Or if you have any 2 accounts, including, for instance, 1 Yahoo! account and 1 Gmail account?

I had a Gmail address set up in Thunderbird on my old computer (Win 10). I had to get a new computer with Win 11. I have my Earthlink addresses set up okay.

But I've been unable to properly set up the Gmail address. I enter all the information, but the account vanishes from T-bird. All I have in Thunderbird is a Thunderbird Tab with Google info. It's a full page which might not come out clear with a screenshot, so I'm copying what's on this Tab ....

Google Account

   <- Mozilla Thunderbird Email has some access to your Google Account

Access you’ve given to Mozilla Thunderbird Email Mozilla Thunderbird Email has some access to info in your Google Account, including info that might be sensitive. You can always remove this access. Learn about the risks

   Access given on:  April 20, 2025
   Web address:    https://www.thunderbird.net

   Mozilla Thunderbird Email can:  Read, compost, send, and permanently delete all your email from Gmail -
   This app wants permission to do anything you can do in your Gmail, including:  (Read, compose, Add,       

ETC.)

   If you remove access 
   You might not be able to use some Mozilla Thunderbird Email features.

Another TBird Tab has: Keep track of your connection with Mozilla Thunderbird Email Mozilla Thunderbird Email has some access to your Google Account To use some Mozilla Thunderbird Email features, you gave Mozilla Thunderbird Email some access to your Google Account. This access might include sensitive info. Etc,

BUT I don't see the gmail email account itself. It had been with the other accounts, but it's not there anymore. PLEASE give me step-by-step instructions so I can access this gmail account.

Kami

Please assist,

Xfinity Logo Upgrade your email account at no extra cost

Your invitation to upgrade your C‍omcast‍.‍net email account to Yahoo Mail is still waiting for you. Move your email account to the Yahoo Mail platform today to start enjoying better features, enhanced security and a top-rated mobile app. Best of all, we’re offering you this upgrade for a limited time at no additional cost.

Sign into your email through webmail at connect.xfinity.com and follow the prompts to accept Yahoo’s terms of service. It’s quick, easy and secure.

What stays the same

   Your email address
   Your messages, folders, and contacts

What's new

   Simple sign-in with Yahoo Mail
   Dedicated support for your account
   Enhanced security and protection
   Built-in calendar and smart inbox
   Stay connected with their top-rated mobile app

The following email account(s) are eligible to upgrade:

   germainr@comcast.net

If you have more than one email account, you'll need to sign into each one that you want to upgrade.

Please note: If you use a third-party email app like Apple Mail, Outlook, or Gmail, you’ll need to update your app settings to continue accessing your email through that app after you move to Yahoo Mail. To learn more about Yahoo’s email service including third-party email settings, please visit welcome.yahoo.com.

================================================

How do I setup Thunderbird to accept this change? My current email addresses are: rdg_tech@comcast.net germainr@comcast.net

In addition I have AT&T as my internet provider and they set me up with a Yahoo email address that I do not use: acsl700a@att.net

In advance Thank You! Richard Germain

I had a similar problem. The Spam settings were being picked up by my ISP from my mobile. When I looked at the Spam on my mobile, I could mark each individual email as "Not Spam". When I did this, the email appeared in the Inbox not only of my mobile but of my laptop too. A new test email went straight into Inbox of both devices and not into Spam of either.

I hope this helps.

On my PC - Initial problem was T-bird took forever to load and virtually all new msgs went to TRASH and I had to move to IN-Box. Per help from David - Saved off profile, and reinstalled thunderbird from thunderbird.net. No change. Then UNINSTALLED T-Bird (profile still intact). Now just attempts to open "Looking up imap.comcast.net", but won't open/connect and to close the app I must use WIN Task Master. Can't get to any msgs, etc. Also, in the past when I was able to open, the banner or bar at the top of the page had hundreds of email icons. I sometime have over 1000 emails in my in-box!! I have years worth of emails in folders on T-Bird which I don't want to loose. Help. Thank you. I have a "working" version (with the "trash" and slow loading issue per above) on my laptop, so I can access suggestions on that version of T-Bird. You could also send any suggestions to x@gmail.com

(PII redacted by moderator)

just installed thunderbird on my new windows 11 laptop (samsung galaxy book 5) and tried to add my comcast email account. i entered the address and password and it took me to an xfinity web page to validate my password for imap.comcast.net. since i'm not on my home network it send a code to my mobile phone which i entered successfully. it then asked my for the address on my account. i entered it and it told me it didn't recognize the address! I called comcast and finally got to speak with a human (no mI'veean feat). We verified that my xfinity account allows third party applications to access my email. That's pretty much all the help she could give me. i've run thunderbird on my home windows 10 desktop with no issues accessing my comcast email. Has anyone encountered this problem? does it have to do with windows 11 settings? any help would be appreciated.

I have both a Microsoft 365 email account and a outlook.com email accounts. I'm using version 148.0. Both account set up just fine. When I delete an email from either account after a couple of seconds I get a message saying "The current operation on 'Inbox' did not succeed. The mail server for "the account name" responded; [TRYCREATE] The destination mailbox could..." that all I can read. Why?? It is only on the Outlook accounts. I have several other account set up and they all delete the emails.