Forum zhromadźenstwa Thunderbird

Today TB froze during start up. No problems yesterday.

I deleted global-messages-db.sqlite and restarted TB. Now it is frozen with a "Loading messages". Maybe it is rebuilding indexes and this takes a long time and I should be patient.

Maybe my In and Sent mail boxes are too big? If so, how can I safely prune them?

TB is becoming increasingly unstable for me. It was very reliable before about a month ago.

I doubt my AV is the culprit because AV has not changed today.

Thank you one and all.

My @googlemail.com account has been working in Thunderbird for years. Two days ago it stopped. No incoming e-mails and attempts to send e-mails from Thunderbird result in the outgoing server timing out. I can access direct at gmail.

Please note that my previous e-mail: alan.rhodes@talktalk.net is no longer available The replacement: alan-rhodes@outlook.com has been blocked by MS-AI (It didn't like a circulation e-mail to 60 members of my local history group) The only working e-mail I have is the current problem one: rhodes.alan1@googlemail.com

I changed POP3 email password to an app password and Thunderbird would not recognize it even though I updated in Security. I was told to delete the Thunderbird account then set it back up which I did--I did not check the box to delete files. Finally the new account was able to bring in new emails (POP3) but the old folders/emails are not there.

I read that I should go to %appdata%, roaming, Thunderbird but the dates are from years ago--do I go further to find my data or is there another path or something else I should do?

Unless they were backed up somewhere within Thunderbird, I don't think I have any backup.

Can you please help? Thank you.

I am having constant problems for months now with Thunderbird freezing and message not responding. It appears to happen mostly when trying to empty deleted folder in block like 20 or more. If I deleted in blocks of four all is ok. As soon as I try to delete a larger amount at once it freezes and displays the message Thunderbird Not Responding. I have followed u tube videos to the letter to attempt repair with no success any ideas please?

Hello Thunderbird Support,

I am using Thunderbird with an email account hosted by Webhosting UK (webhosting.uk.com).

I am experiencing an issue where legitimate emails, including booking notifications, are repeatedly moved to the Spam/Junk folder.

When I mark these messages as "Not Spam" and move them to the Inbox, they return to the Spam folder after some time.

I have already checked with my hosting provider and confirmed that the issue is not related to the hosting service.

Could you please provide a Thunderbird configuration guide or help me understand the correct settings to prevent legitimate emails from being repeatedly moved to the Spam/Junk folder?

I would appreciate step-by-step instructions on how to resolve this issue permanently.

Thank you for your assistance.

Hi, I am trying to import all my emails from Yahoo to GMX and would appreciate your guidance on how to successfully complete this process. I have an existing account with both Yahoo and GMX. I have attempted to use the GMX import feature but have encountered some issues. It would be helpful to understand if there are specific steps or settings I need to follow to ensure a smooth transfer of my emails. Additionally, if there are any limitations or troubleshooting tips that I should be aware of, I would love to hear them. Thank you for your assistance.

I received an error saying 'The Local Directory path C:\\Users\\RER-KU\AppData\Roaming\Thunderbird\Profiles\q2hrwh2q.default\Mail\Local Folders" is not suitable for message storage. Please choose another directory.'

I cannot receive any emails, and also received the error 'Sending of password for user 'rerlaroberts@att.net' did not succeed. Mail server inbound.att.net responded: Server error - Please try again later.'

I have had the same issue for 3 days now with no luck.

I use emojis in email, but recipients report that the text of the email arrives covered with emojis. I thought it was a problem with the receiver until a second person just reported the same issue with an email I sent them. Both are gmail accounts . . .

I would like to uninstall my Thunderbird 32-bit and then install the 64-bit version. Or could I just install 64-bit on top of 32-bit? Are there any disadvanteges with going to 64-bit?

AVG sends message: "We've identified a site certificate problem" "Trust for this certificate has been revoked."

Looking at certificate page that AVG provides is Greek to me. General tab displays:

"This certificate has been revoked by its certification authority"

issued to : inbound.att.net

issued by: Digicert Global G2 TLS RSA SHA256 20250 CA1

Valid from: 4/12/26 to 10/28/26

Details tab:

lists a bunch of things that I don't comprehend and offers an option to "copy to file" and lists a number of formats to copy the file to.  Have no idea which would be the one to use. 

Trying to access email directly from browser has not been successful because it wants verify my identity by sending message to my phone, but it does not send anything.

I tried turning off the add-on and turned off dark mode. I have been successfully using it this way, having to change the font color using font/bkgrnd color control. I have not updated win10 or TB since the last time I used this function. I send out daily emails with findings to a group bcc list. Not complex nor variating.

I went to light mode, turned off JonathanKamen's "Send Later" add-on (which is designed and executes well). Process successfully concluded.

Turned back on "Send Later". Still works.

I prefer dark mode. Documenting for advice and to see proactively if some gap is there in code say for error handling.

Thank you, Greg [redacted phone# from community support forum]

I have no accounts, no old emails, nothing.

Version 153.4.0esr | Released September 30, 2026

Update History The following updates have been installed Thunderbird 153.4.Oesr (20260929234349) Installed on: October 5, 2026 at 6:23:30 AM Status: The Update was successfully installed Thunderbird 153.3. lesr (20260917204311) Installed on: September 18, 2026 at 3:24:29 PM Status: The Update was successfully installed

Old tower PC Edition Windows 10 Home Version 22H2 Installed on 11/12/2020 OS Build 19045.7725

Gateway Processor Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz 3.40 GHz Installed RAM 16.0 GB (15.8 GB usable) Storage 4 GB HDD ST4000NC001, 932 GB HDD ST1000DM003-9YN162, 1.82 TB HDD Hitachi HUA722020ALA331, 117 GB SSD SanDisk SDSSDP128G, 7.28 TB HDD ST8000DM004-2CX188 Graphics Card Intel(R) HD Graphics 4000 (96 MB) Device ID C6B6F480-ED70-4787-A153-1FD620BAFDA9 Product ID 00326-10000-00000-AA675 System Type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display

It's very odd. Normally moving an email, say from the Inbox to the relevant year's archive, takes "no time at all".

Which is true for all the mailboxes shown on the attached screenshot, EXCEPT for the four at the bottom. Moving even one message from Inbox to Yiddish can take ten seconds or longer (with the dreaded "Not Responding" occasionally). Moving something in the opposite direction is also screwy, only from those four.

I had thought that it was because they're rather large. This first started when there were just Yiddish and MSW, and I split off most of the earlier years into the archives shown. To no avail.

It's only an annoyance, but I'm puzzled about how such a thing could happen.

Also very slow tagging or untagging a message just in those mailboxes.

Moderator Notes:

• need a performance profile https://support.mozilla.org/en-US/kb/profiling-thunderbird-performance