Thunderbird Community Forum

Howdy! So this problem started today, and I can't find a solution or reason it is happening. The only variable is that I grabbed my address books from my old pc and transferred them over to my new pc. I didn't change any settings, just put my address books on a thumbdrive and brought them over. I've been using my new pc for about a week now, and no issues until today.

Normally when I double click on an email, and it opens in a new window or tab, the status of the email in the email list automatically becomes "read", ie the little green dot becomes a little grey dot. For reasons beyond me, it has stopped working. The email stays in "not read" status, the green dot remains. It's driving me crazy, as only pc problems can. Anyone else having this issue? Oh, and yes I shut down and cold booted the pc and nothing changed. Thanks in advance!!

Hello,

I have TB 140.3.1esr (64-bit) running on Windows 11. everything works as expected, I love it!

I can't find anywhere that allows me to change the folder's (on the left) font type/style; right now it's all bold style. I was able to change the size but not the type/style.

Does anyone know how to do that, please?

Thank you

I've been reading how to move my emails to a new computer. There are two users on the old computer, both with Thunderbird. When moving the email profile to the new computer, does it pick up both users, or does this need to be done separately for each individual Thunderbird email account? If so, I assume I need to set up both users on the new computer before starting the Thunderbird move. Also, how can I be absolutely sure I'm dealing with a recent enough email version on the old computer? My Thunderbird updates frequently but the new one seems to be slightly off.

PLEASE put the format options back into the email task bar! My formatting needs to be done on a message by message basis. It is time consuming and counterproductive to have to go to settings each time. No matter what I tried in settings, I was not able to get Formatting back into the message task bar. At minimum, I need font, size, list and color options back in the message task bar. PLEASE HELP!

I have been using Thunderbird for a few months and changed my Google Password(even though Im not quite sure if the error wasnt already occuring before that), but now when I go on Thunderbird it gives me a popup window that says "Enter credentials for name@gmail.com on imap.gmail.com". Theres a field for the email-adress, but when I click "Next" theres the following error: "400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

These are the things I tried: Entering the old or new Password. Checked if the config is set to OAuth2 in both incoming and outgoing servers and enabled on Gmail-Account. Deleted and tried to (unsuccessfully) reregister my Thunderbird-Account. The same error pops up when it checks my password after the configuration.

I dont know if the password change is actually the cause, since I think I remember the error message appearing earlier today, before I changed the password, but Im not sure. Also, I have another account linked to my Thunderbird, with no changed credentials, and while there is no similar error message, thunderbird suddenly also has problems connecting to it and asks to retry a few times (3-4) before actually connecting everytime I open it.

I suddenly cannot send e-mails, as an alert appears that says I have to change my message in that what I am sending might be a scam or questionable, which it never is. Also, all of my new e-mails are going to "Archive" and always has gone into my InBox directly, until now. What is going on, and how can I change it?

Hi, Unfortunately, I am a non-tech person and I am trying to install Thunderbird emails on my Mac Book. I have a thunderbird account which I normally access on desktop, however that will soon be obsolete so want to access them from my Mac Book, but I am really struggling to access and download everything. Please help a damsel in distress

Dear Thunderbird Support Team,

I am reaching out for assistance with opening .tmp files that originate from Mozilla Thunderbird. These files are approximately 650MB in size and contain copies of my text messages, which I would like to recover.

Unfortunately, I no longer have Mozilla Thunderbird installed, and the .tmp files do not open in any other text editor. I would appreciate any guidance or help in retrieving the contents of these files, as it is crucial for me to access these messages.

Thank you in advance for your help.

I am attempting to set up Thunderbird on my desktop. I sign in and only very old email load. I am not sure how to proceed. Outlook is online only now, I need Thunderbird so that I can scan to email.

I used TB for many years on several computers. Last week, I had to reinstall TB on a Win 11 computer, and tried to migrate my TB profile from the Win 10 computer. However, this is an ongoing problem. After several attempts, I have a TB profile on the Win 11 computer that seems to look OK. However, when I open TB, not all the local folders appear in the TB Local folders menu. I read several discussions and guides from other TB users, and tried the suggested fixes. They did not solve the problem. The Local Folders exist in the profile in the Mail folder. When I open the Local Folders, I can see all my local folders that were copied from the TB profile on the Win 10 computers. These include .mozmsgs and .sbd folders. When scrolling down in the Local Folders, after the .mozmsgs and .sbd folders, I can see pairs of folder names w/o extensions (the open with notepad and contain text) and files with the same names but with .msf extensions.

So, theoretically, all the local folders should show up when opening TB. But they don't.

At this stage, I don't know what to do, and I would appreciate your help.

Thank you.

Ted

The new machine is not quick to send a post to junk or trash. I see a message about downloading it before I see it move. Going over settings comparing both, old machine was set to a Pop mail server. The remote helper changed that oh New one to IMAP Mail server. I'm assuming that is the problem but I can't find how to change the new setting from IMAP to POP. There is a red Delete button on the A/C settings page. Should I try that?

Also since I couldn’t use the profile from corrupted old machine I've manually input everything in the new. I have used the Draft files in the old machine as a sort of reminder for me and want to copy it and bring it Into the new machine. Is there a way to do that?

I hope this is concise enough.

Stacy

Hi, I have tried multiple times to log into my thunderbird account. Every time it says sending login link . I never receive it. Making it impossible for me to access my account

This error message keeps popping up many times a day and is very annoying. I notice that others are getting the same error message but haven't found a fix for it. See image of the whole error message attached.

The weird thing is no matter which of the 3 options I choose it keeps coming back... sometimes within a few second. Also it doesn't prevent me from getting my email. Really odd.  ???

Anyone find a fix yet? Thanks.

Hi Folks,

I want to seek opinion on how to manage the virus detected in emails (or its attachments) through Kaspersky Anti Virus.

I have large no of emails in TB stored in mbox format. Around 30GB in Inbox and another 5GB in Sent, etc. I also use Kaspersky Internet Security which has anti-virus also active.

Now my anti virus detects some infected emails. How to clean the infected virus emails / attachments.

Question: 1) When using mbox file on TB, is Kaspersky capable to delete ONLY a single specific infected file from the entire mbox data without any corruption of mail data? 2) If not, how to setup the anti-virus to automatically clean, disinfect and delete/quanrantine individual mail. ?

3) Is MailDir a better way to save emails in profile and use anti-virus. There is a warning on Maildir saying its still not settled and may have bugs. Is that true even today ?

Thanks & Regards, Tejas

Hallo,

in an effort to understand why one s/mime signed message I received could not be verified by Thunderbird (140.3.0esr (64-bit) on Ubuntu 24.04.3 LTS) (error 1041, "unknown problems with this digital signature"), but by all other clients I and others could check (including cli tools openssl, cmsutil), I did a few tests using my own certificate (using rsaEncryption, SHA256).

Inital observation: Messages signed with "openssl smime -sign -in msg.txt -to <email> -from <my-email> -subject test -signer mycert.pem -inkey mykey.pem -out signed.eml" and opened in Thunderbird showed error 1041. Any modifiers like -crlfeol, -text, -binary, ... did not make a difference.

Omitting signed attributes (-noattr) however helped. The signature was verified.

Looking at the signed attributes, nothing seems wrong: hash in messageDigest is correct, sha256 and rsaEncryption is given. Checking more carefully the signature, the hash of the attribute section is also correct. Manually verifying the DER attribute section with the given signature is also fine.

The question is, what is the reason that Thunderbird rejects the signature? I didn't manage to produce a log output of the verification, so this general error 1041 is all I have. Is Thunderbird more strict as openssl? And if so, at what point?

The only point I see where there could be a problem in handling the attributes is the header of the DER attribute section. In the full signature this starts with 0xa0, as stand-alone block it should be 0x31 - only then the hash matches. However, that's wild guessing.

Any ideas? Already some info on how to access a log output on the verification would help.