Thunderbird Support Forum

Starting a few months ago Tbird suddenly became noticeably slower, and it's only continued/possibly gotten worse, despite several version updates (which I was hoping would fix it). Currently I'm on version is 115.12.1 (64-bit)

I do have several accounts (all pop) and many folders, but nothing different than before the issue began.

I only have 2 add-ons enabled; Remove Duplicate Messages & SmartTemplates. I've of course disabled them and restarted TBird but it didn't help at all.

I've compacted and repaired all folders.

I've created additional folders to reduce the size of larger folders.

The only thing that helped a bit was troubleshoot mode, which definitely made it a bit better going from email to email and folder to folder, and especially with moving emails from one folder to another (which is usually very, very slow and I see it on the bottom saying "moving email 1 of 10 to folder xyz...moving email 2 of 10 to folder xyz...", even if they are simple/small emails). However, sending emails still took over 5 seconds (see screenshot attached), so that might be a separate issue.

In terms of sending emails, whenever I try to send any email it sits on the sending screen for several seconds or more. My internet is fine (2gb fiber, previously 1gb cable), speed tests max out at the 1gb my laptop can handle. Laptop is 2-3 years old high-end Eluktronics, with no other issues.

Given the above, and that troubleshoot mode did seem to help a bit (but straight out turning off add-ons didn't help), what can I try to adjust (while not in troubleshoot mode)?

Thank you very much!

I Can't send or receive emails from Thunderbird, over 24 hours now. I get error message above and repeated requests to log on with my passwords, but my password doesn't work. I log onto and go to my AOL server to see my emails.

Can't use Gmail account anymore have cleared cookie's and caches removed permissions and account from Google and TB uninstalled then reinstalled then add TB account worked for 2 minutes then got the same error also some emails load while others are just a blank screen all windows 10 and TB updates are current Have attached error we are receiving anything else please just ask Any help appreciated

Bill

I'm connecting to an MS Exchange server via smtp.office365.com and mostly this works OK by now. I do have a stupid problem, however: After deleting several folders, they always "come back" as "ghost folders" (grayed out and without messages) and it's impossible for me to get rid of them. Very annoying. I've tried a couple of steps:

• of course, I tried deleting the folders through the Thunderbird interface, also from Trash, where they first move to
• I also tried to delete msf-files associated with the deleted folders -- to no avail
• I also tried to unsubscribe from these folders using the "Subscribe" interface -- this is not possible: I can tick off the folders, save my choices, but as soon as I open "Subscribe" again, these folders are back
• I also tried to use Outlook, but the deleted folders are not shown in Outlook -- it seems to me that Thunderbird has difficulties letting them go

I'd be very thankful for any constructive help!

My Thunderbird profile in Linux Ubuntu 24.04 is in /home/dick/Thunderbird_mail/me. I want to copy it to a new directory. I copied it using the following commands: dick@dick1:~$ mkdir t2 dick@dick1:~$ cp -rf Thunderbird_mail t2

I then ran "thunderbird -P" and created a new profile pointing to /home/dick/t2/me When I opened this profile I got the message "You have launched an a\older version of Thunderbird.", even though I was running the same version of Thunderbird. If I open the profile in Thunderbird_mail/me, it works correctly. If I open the profile in t2/me with the same executable of Thunderbird, I get this message.

How can I copy my profile to a new directory?

dick@dick1:~$ thunderbird --version Thunderbird 115.11.1

Hello! Since I couldn't find help in the forums, I will create a new question. For about a year now the PC at my work will not open mailto-links correctly. There is no account to select from, the subject has a lock-symbol. The receiver's address is correct though (I replaced it with "address" for the screenshot). This PC is the only one I know with that problem and only with external mailto-links. If I click on an email address inside a mail, it opens it correctly. Thunderbird version 115.11.1 (32-Bit), Win 10

It's pretty impractical, so I am hoping for help. Thank you!

Hello, I have been using TB for a long time wiht no mayor problem. I recently had a problem with the hosting services of 2-3 of the email addresses I use in TB and when I now open TB I can click once on the pop up (say on cancel), but when the next pop up message appears (with the same message but for another email address) TB freezes.

Have used Thunderbird for 10+ years, as interface to Gmail. Lovely product. 3 days ago I had to reinstall a station but when Thunderbird does its updating after reconnecting to gmail address for the 10GB of emails, it behaves damn irregular: - periodic freezes of mouse and keyboard, for about 0.3 seconds every 3 to 5 seconds. - Thunderbird message says downloading email number out of total number of emails (very slowly advancing) but every 3 seconds it starts downloading email 1 of those emails - station has cumulated some 20 hours working, most of these left to finish syncronizing. Usually in 2 - 3 hours there is time enough.

This happens only when Thunderbird runs, when I close it the station runs fine. Same hardware on the station as before..

Did you encounter this? Thanks.

I am using Thunderbird to connect to a personal POP & SMTP server. I have recently migrated to a new desktop and moved the old profile folder to the new computer (so I would keep all the emails). Everything was transferred successfully, including the profile settings.

When I open Thunderbird, I am asked for my password and it all goes well if I enter it manually. If I check the "Use Password Manager to remember this password" box, I am met with a "User to server X with username and password failed" - error and a "Sending of password for user did not succeed" - error. I am entering the exact same password in both cases, yet it only fails when I try to save it.

Dear community

when I search for Quicktext Tutorials i see a nicely working application which allows me to manage text components and include them neatly in my writing. But what is actually showing after installation is a bit meager.

I can choose between "variables" and "other". ""Variables" is of no use at all, Other" simly allowes me to include a saved file in text or html from a folder. Well, thats a bit stoneage like, but I would have worked with that option, but:

Unfortunately, there is no way that Quicktext will save textsnippets as html or text. I definitely do not see myself copying parts of emails into notepad and saving them manually. That would be a very lame automation and definitely not quick enough ;). Also I am looking for the sort of "preview" Outlook is offering with Quick Parts.

Does anyone know anything about this problem or can recommend a better addon? I hate writing the same stuff again and again and again.

All the best, Maria

Hi,

Thunderbird suddenly stopped working today,, can not receive emails or send emails. I can log directly into web client and emails are sitting there have confirmed settings with my hosting company and everything is working their end they have also confirmed the settings are correct in Thunderbird

Hi,

I have been configured my Gmail account in Mozilla thunderbird client version 115.12.0 in Windows 11 system. Have been receiving an error message frequently as below "Unable to write email to the mailbox. Make sure the file system allows you write Privileges, and you have enough disk space to copy the mailbox."

System has enough space and memory and please advise.

Hi

uBlock Origin for Thunderbird doesn't block Newsletter ads (blocked since install 0% ===> since months)

How-To fix and troubleshoot? Re-Install of add-on already done

Thanks

I have a problem with Thunderbird 115.11.1 with the POP3 server inbound.att.net. Someone on at at7t forum suggested changing from Userid/password to Secure Mail Key. I had previously set up two Keys with at&t, but AI have never activated them. I looked at one URL, and was able to change the settings for inbound.att.net. But I did not see anywhere to enter one of the Keys that I had generated earlier. When I tried to re-configure outbound.att.net, I did not see a OAuth2 option. I do not need to re-configure outbound at the present time, as I can send mail without a problem. But receiving mail does not work. Here is what I see in the error console log:

mailnews.pop3.246: Connecting to pop://inbound.att.net:995 Pop3Client.jsm:141:18 mailnews.pop3.246: Connected Pop3Client.jsm:295:18 mailnews.pop3.246: S: +OK Hello from jpop-0.1

Pop3Client.jsm:348:18 mailnews.pop3.246: C: CAPA Pop3Client.jsm:508:20 mailnews.pop3.246: S: +OK CAPA list follows

IMPLEMENTATION jpop-0.1

EXPIRE-NEVER

PIPELINING

RESP-CODES

TOP

UIDL

USER

SASL PLAIN XOAUTH2

.

Pop3Client.jsm:348:18 mailnews.pop3.246: Possible auth methods: XOAUTH2 Pop3Client.jsm:597:18 mailnews.pop3.246: Current auth method: XOAUTH2 Pop3Client.jsm:668:18 mailnews.pop3.246: C: AUTH XOAUTH2 Pop3Client.jsm:508:20 mailnews.pop3.246: S: +

Pop3Client.jsm:348:18 uncaught exception: initFromMail failed, hostname: inbound.att.net Prompter.sys.mjs:1231:17 mailnews.pop3.246: NetworkTimeoutError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.246: Connection closed. Pop3Client.jsm:395:18 mailnews.pop3.246: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.246: Done with status=2152398862 Pop3Client.jsm:1486:18 mailnews.pop3.247: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.247: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.247: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.247: Done with status=2152398861 Pop3Client.jsm:1486:18 mailnews.pop3.248: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.248: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.248: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.248: Done with status=2152398861 Pop3Client.jsm:1486:18 mailnews.pop3.249: Connecting to pop://inbound.att.net:587 Pop3Client.jsm:141:18 mailnews.pop3.249: ConnectionRefusedError: a Network error occurred Pop3Client.jsm:369:18 mailnews.pop3.249: SecurityError info: Pop3Client.jsm:375:20 mailnews.pop3.249: Done with status=2152398861

Here is what I changed: Thunderbird: Account Settings --> Server Setings --> Security Settings --> Authentication Method Normal Pasword -> OAuth2

                                                   Inbound.att.net: Port 995 --> 587
                                                   Connection Security: SSL/TLS --> STARTTLS 
   

What do I have to do to get one of my two Keys into the inbound Thunderbird configuration? Thanks.

I did search for solution before posting this. Couldn't find any recent fixes. Using Version 115.10.1 I have used Thunderbird for years to get various emails. Including 2 different att.net emails. Until about 2 days ago, this has been working well. All of a sudden I keep getting the popup to login with my password. I looked at the password file to see what was being used. Hasn't been updated for years. I used web browser to login to att.net account, confirmed that the pw listed in Thunderbird was correct. I looked at my att account and found that I setup a secure key in 5/21. Not sure what has changed that I can no longer use thunderbird for att emails. Note: I deleted the account from thunderbird and attempted to re-establish the connection.. I used the automated process that TB had for the settings. got an error using the regular password AND using the secure key. I tried setup manually, making sure that the inbound/outbound settings matched. Still won't let me login. Something has had to have changed.

This page did not help. https://www.att.com/support/article/email-support/KM1086159 System config and results screen prints are attached.

Cancelled setup and started over This time I entered the secure id as the password,

I am no longer able to send/receive messages in Thunderbird. Sending of password failed and login failed. I tried changing my password, but that did not help. This happened on 6/16/24 in the evening.

I invited someone to an appointment, but screwed up the repetition parameters. I then cancelled that appointment.

The person I invited accepted the original (screwed up) appointment but did not process any emails to cancel the meetings. How can they edit / delete appointments that they did not themselves set up? You can see how messed up the calendar is with the erroneous entries...

Hi, hope someone can help please

By mistake I set up my 89 year old aunties TB using a Beta version. All of her emails are in that profile. I then installed the stable version but I'm told that the stable version is an older versions and can not import from the Beta.

Specifically the Beta version is 127.0b4 (64-bit) and the stable vesrion is 115.11.1 (64-bit).

Is there any way to recover the emails (and if possible the settings) from the Beta profile to the stable release

Thanks in anticipation

Russell