Thunderbird Community Forum

I recently bought a new computer and trying to use Thunderbird for my ATT/Yahoo mail like I did on my old computer. I keep getting a login failed message on my new computer. I moved my profile over from my old computer, all passwords and settings exactly the same. I can still use Thunderbird on my old computer, but it won't work on the new one. What am I doing wrong?

Why Thunderdird now is so slow

Why you recommend to upgrade to ESR when the one that I had been using for years I don't trusted

I have Thunderbird: 128.10.1esr (64-bit)

Amparo

While composing an email, Thunderbird freezes, then fades. I'm able to "X" out to close Thunderbird and to restart it. I have the latest Thunderbird version (138.02 64 bit) installed. How can I stop these intermittent freezes?

Consistency, and failure of multiple accounts to down load emails. Several accounts download fine. The program does not respond to clicking on Download email Icon for unresponsive account. Two Hotmail Accounts will not log in, are a separate issue.

Hi,

I am using Thunderbird 128.10.2esr (64-bit).

In settings, composition I have the "use paragraph format" box unchecked.

When I compose an email, hitting Enter causes an extra line feed to be inserted. Thus I need to go back over lists, addresses and so forth to manually change back to body text. I would like to not have to do this.

Is there another setting that will allow composition entirely in body text style? I am also set to send in plain text only.

Peter

I would like to stop the annoying login popup to gmail. I have deleted the account that used gmail but that failed to stop it. Really don't wish to delete and re-install TB, but the pop us is that annoying. Then even if I do delete and reinstall TB how must I do it to avoid having it pick up the old information that keeps sending it to Gmail to login? Thanks for any ideas John

I followed the instructions given in Thunderbird regarding the outlook email account set up. I can download emails but cannot send emails out. I looked up MS website about the App password but I am really confused about how to set it up.

In my school, I have a school email that is also using the smtp.office365.com server. I wonder if there is a conflict when I have both a school email account and a personal outlook account in Thunderbird. Until late last year (2024), I had both accounts in Thunderbird without issues. Since MS started to require two-factor authentication, this problem showed up in my desktop.

Oddly, in my android phone I have no problem using both emails in the android email app.

Please help!

I have Comcast as my internet service provider. I use Thunderbird to download a copy of my e-mails from their server and send e-mails out through their server. Until about a month ago, Thunderbird, which I used for many years will not send my e-mails but will still allow me to receive my e-mails. When I try to send an e-mail, I get an error message that says Login to server smtp.comcast.net with username (then my e-mail address).net failed. I had read on Google that Thunderbird was having some trouble and one of the fixes was to uninstall Thunderbird and reinstall it. Also, to check my settings on my computer which I did and nothing has worked. When The message doesn't go through, after this failure message, I then get this message "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) smtp.comcast.net. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'. I tried changing my password and it did not help. I also contacted the Comcast security team which was able to help me with a previous Thunderbird issue but not this one. They said the problem was with Thunderbird this time. Can anybody assist me with this please?

I am transferring my thunderbird folder to a new computer and it is 235 GB. I dont understand why it is so large. Are ALL my emails being saved? How do I delete so I can make smaller??

I started a message about 2 hrs ago where I could not get into yahoo from Thunderbird. Then when I was typing the the details my keyboard suddenly topped working. This problem has been going on over a week. I deleted the account from Thunderbird and then tried to create a new account with the same email address, and every time I tried, it either said email or password is incorrect or it asked me for the Pin for yahoo.

Note that the user and password work using Firefox, and I copied both from the web, where they dork fine, but Thunderbird said they were incorrect.

A few times it asked for the PIN for Yahoo, and I clicked I don't know. and it told me to reset it at sign in options but I could not find sign in options anywhere. Please advise, thank you.

Steve at marathonsteve@gmail.com

I cannot use Thunderbird to work at all with Yahoo, though it does work with yahoo. FWIW, Yahoo does work with Firefox.

Thunderbird used to work, maybe several weeks ago. When I tried to set it up again, it kept asking me to enter my pin, and it said I could reset my pin under sign in options, but there is no place I could find sign in options.

I deleted my yahoo account from Thunderbird, then tried to add a new account for Yahoo.

unable to send emails, "the message could not be sent because the connection to Outgoing server (SMTP) mail.alburyathletics.com timed out

I dual boot two Linux OSes (OpenSUSE Tumbleweed, Pop!OS). They both share the same ~/.mozilla/firefox and ~/.thunderbird directories. In Pop, clicking a link in a message opens up a new tab in Firefox. Then I boot Tumbleweed, where the same versions (128 esr, 138.0 release channel) of both clients are installed. Now if I click the "get help" F1 or any https link in TB, a new window opens with "target=_top" rather than "target=_blank". So basically have to copy/paste links into a new tab manually, *but* only in the Tumbleweed instance.

I installed Chromium and set it as default browser. Guess what? Works just great! I guess I could just live with that configuration, only I'd like Firefox to be my default browser. What could I do? I tried all the steps in [guide] and would appreciate ideas or guidance from this forum.

Thanks! Alex

I recently converted from Outlook to Thunderbird and use a Local Folder to maintain most of my emails. Everything seemed to run well for the first few days, but then I realized most emails being automatically copied by filters are showing up 2 blank messages (same subject/date/time/etc.). I get the occasional 12/31/1969 email as well. Oddly, when I run the filters manually, the process works flawlessly and have never resulted in duplicated blank messages or a 1969 email.

Any opinions on why an automatically-ran filter corrupts most emails but manual runs are fine? The behavior is bad enough I'm considering switching back to Outlook. This is such a basic function it causes me doubt in Thunderbird's ability to safely manage my emails.

Notes: - Using Proton Mail Bridge - Latest Thunderbird/latest Proton Mail Bridge with no add-ons or extensions - Repairing or compacting the associated Local Folder doesn't fix any message. The only 'fix' is to manually re-copy the affected message from my server, then delete the corrupt copies. - The filters are set to run with new email - Each filter copies the message to the Local Folder, then moves the message to the server's Trash. This two-step action is because Proton Mail Bridge does not allow third-party clients to move messages out of the server--if you do this, it orphans the email in their All Mail folder and become a mess to clean up. - After extensive research, I thought my folders were corrupt so I completely rebuilt the Local Folder structure. All messages were moved into new folders and the original folders were deleted. - Each folder is a few hundred MB, total Local Folder size is less than 7GB

Problem: I want to forward a received email to a list I have made. The list is located in my address book. First I click "forward" on the email in question, which is now waiting for addresses. Then I highlight each entry in the list I want to forward the email to. When I click "write", however, a new email appears and the email I want to forward is not included. Perhaps I should create an email containing the list first and then try to attach the email I want to forward, but that isn't obvious to me. It seems to me that in the past I could mark an email to be forwarded, then go to the address book, right click on the title of the list and then click "BCC". But this option seems to be missing. Any help will be greatly appreciated! Jack

I'm running Thunderbird 138.0.3 (release update channel). I had an update in the past few days and now it is having a problem. Thunderbird starts OK but it I use another program for several minutes when I go back to Thunderbird its window is not visible. Looking at my system monitor Thunderbird is using a lot of CPU. The only way I can proceed is to kill Thunderbird from the system monitor. No crash report is generated. Running in safe mode does not help.

If I run Thunderbird from a terminal I get: $ thunderbird [64132] Sandbox: CanCreateUserNamespace() unshare(CLONE_NEWPID): EPERM ATTENTION: default value of option mesa_glthread overridden by environment.

This seems pertinent as it it to do with graphics but the web seems to suggest it in not important.

I have copied the Troubleshooting information to a text file and so can share it but it is quite large does not seem appropriate to include it here.

Any help gratefully received.

I am no longer receiving calendar notifications for events which are entered as "all day" events on my Google calendar.

I had a similar problem about three years ago when I wasn't receiving notifications for ANY events on my Google calendar. I attempted to solve this problem in a similar fashion by uninstalling/reinstalling Thunderbird then disconnect/reconnecting Google Calendar as discussed in the following link, but the All Day events' notifications still are not appearing.

https://support.mozilla.org/en-US/questions/1397571

As a debugging step/temporary solution (so I don't miss notifications), I have integrated my Google Calendar with Outlook, and am receiving notifications correctly with that app, so the problem doesn't appear to be on the Google end.

我的邮件客户端为128.7.1，用的时IMAP协议。在客户端界面显示收件箱（包括收件箱下级文件夹）总共大小为78GB,但是在%appdata%中的thunderbird文件夹却有恐怖的795GB！！！我尝试压缩收件箱但显示只压缩了7.5GB。。有人知道这是什么问题吗？我应该怎样减小%appdata%中的thunderbird文件夹的大小？谢谢。