Thunderbird Support Forum

For many years, my wife and I have each used Thunderbird on our own computers. Several weeks ago, when my wife turned Thunderbird on, a new screen appeared that mentioned account setup and directed her to set up her existing email address. When she did, a home screen appeared that was significantly different than the one she had been using. But more than that, she lost all her saved emails and Thunderbird started to reload emails. The reloading ended with over 1800 “new” emails whose dates reached back for almost a year. Since then, after some work, the home page has been returned to its earlier look; downloading, sending and deleting are working as before. Missing are a few important, personal subfolders. We’ve tried a few things that we thought/hoped would return us to the point before everything went crazy. That hasn’t happened. Recently, we looked at the Profiles folder on each of our computers and saw something that, I think, is unusual and, I hope, might provide a way get her back at least some of what was lost.

The route to my Profiles is C: > Users > Me > AppData > Roaming > Thunderbird > Profiles In Profiles are two folders, one ends with .default and the other with .default-release. The only thing in the default folder is the file times.json. The default-release folder contains many files and folders, including the Mail folder. The Mail folder contains two subfolders: Local Folders and mail.comcast.net.

On my wife’s computer, there is only one folder inside Profiles. The name ends in .default. Inside that folder is the Mail folder. Within the Mail folder are six subfolders: Local Folders, Local Folders-1, Local Folders-2, mail.comcast.net, mail.comcast.net-1, mail.comcast.net-2. The Date Modified date for Local Folders is probably the date the problem started. Date Modified for Local Folders-1, mail.comcast.net and mail.comcast.net-1 is the same: a few days after the date for Local Folders. The dates for Date Modified for Local Folders-2 and mail.comcast.net-2 are the same, and change daily.

I’m hoping/assuming that the missing, personal subfolders are in one, or more, of Local Folders, Local Folders-1, mail.comcast.net, mail.comcast.net-1. What I’m asking here is: does anyone know of a way to easily locate and recover the subfolders and, then, move them into the correct location in Local Folders-2and/or mail.comcast.net-2.

Thanks for taking the time to read this long story.

I have several Comcast.net accounts that I have set up in Thunderbird. About 2-3 times per week, Thunderbird makes me re-enter one or more of my passwords, only for the comcast accounts. It says Authentication Failure, but I have not changed anything on the accounts, including passwords. Entering the same password works - for a while. Any idea how to stop this?

Using T-bird Beta 127.0b5 (64-bit) Longtime T-bird user, regular and Beta. Folders not showing in Folder Tree in 1 of 2 accounts on same outlook server. No problems with GMAIL or ISP email Spectrum). I've tried all the fixes in similar previous question but none worked. I am, and must remain in, Troubleshooting Mode to be functional. Thoughts solicited and appreciated.

In my list of Inbox Unified Folders (13 of them), one folder in particular (the second one) is sometimes there, then at some point later is gone. It's still in the 'All Folders' list, but not in the Unified folders list. If I kill TB and restart, then it's back. I have no idea what ops might cause it to vanish. Any idea what's causing it to vanish or what I can look at?

I opened Thunderbird this morning and there were no issues. Closed it and just now reopened and I'm getting this message: Thunderbird detected a potential security threat and did not continue to live.thunderbird.net. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

It downloaded 28 emails but will not let me see/access them.

Can anyone help? Thanks, Linda

When I delete an email it immediately diseappears from the view, but if I have the "Unread" filter active and I mark an email as "read" it remains there until I switch the "Unread" filter off and then on again. Quite impractical to me.

Why do I have both a spam and a junk folder in Thunderbird?

Also, if I have to keep both, is it possible to add a menu command to empty the spam folder, like we have on the junk folder?

Hi, I'm using Firefox 115.11.0esr (64-bit) on a Mac Mini M2 Pro running Sonoma 14.5. When I forward an email message with Firefox, multiple lines of HTLM text are prepended to the forwarded message. I've attached a screenshoot showing the first 2 lines of this prepended text.

How can I configure Firefox so that his HTML text is not included in forwarded messages?

I have been using Firefox on Mac for a number of years. This behavior started when I upgraded to the Mac Mini M2 Pro and this version of Firefox.

Thanks for your help.

Email from a trusted address over past decade is suddenly going to Junk as of today. Cannot see how to whitelist the Sender, and googling the question tells me to go to Tools>Options, however Options does not show in the Tools menu.

Hi, just upgrade to Windows1 and did a new installation from Thunderbird. latest version 115.11.0 (32-bits) But the new messages are almost directly market as read even with setting mark messages automatic as read set to no? On a other pc with Windows11 I had the same problem with the 64bit version but going to the 32bit version solved the problem. Any Idea how to solved this problem? Regards Karina

I'm using a VPN on my computer and phone and when I try to connect to the mail server, Thunderbird gives me an error saying that the mail server has disconnected. But when I disconnect from the VPN, everything works. This happens only with one mail server, on the others everything works OK even via VPN.

However, the the mail from this server is coming to my phone (where I use K-9 Mail).

I also tried to connect to the mail server via openssl, with the command "openssl s_client -connect mail.server.net:993 -crlf"

The connection is successful (when I'm on the VPN), but when I enter the command "a LOGIN my.username MYPASSWORD", it gives an error:

a NO [UNAVAILABLE] Maximum number of connections from user+IP exceeded (mail_max_userip_connections=20)

I have set the "Maximum Number of server connections to cache" to 1 in Thunderbird, I have set to check for mail every 12 minutes (it already was 15 minutes on the phone before), and it is still the same.

Any idea how to solve the issue? I am connecting to this server with the same username and from the same (VPN) IP only from my phone and my computer, so I find it really strange that there are more than 20 simultaneous connections...

When I try to send a message from my Thunderbird POP Server account I get:

“Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) webmail.digitalspaceportal.net timed out. Try again.”

Try again never works

Here are my Outgoing Server settings

Description: webmail.digitalspaceportal.net Server Name: webmail.digitalspaceportal.net Port: 1025 Default: 465 Connection Security: SSL/TLS Authenticity Method: Normal Password User Name: jrf.consulting@attglobal.net

I am on a Win 11 laptop running Thunderbird V115.11.0 (64-bit)

Hi everyone,

I'm having trouble with my Thunderbird app (version 115.11.1) on macOS. I'm trying to add my Google accounts, but after I attempt to connect them, I receive the following warning message: "Unable to log in at server. Probably wrong configuration, username or password."

I've checked the configuration multiple times to ensure it's correct. Here are the settings I'm using for Gmail:

Incoming Server (IMAP): Server Name: imap.gmail.com Port: 993 Connection Security: SSL/TLS Authentication Method: OAuth2 Username: [my email address]

Outgoing Server (SMTP): Server Name: smtp.gmail.com Port: 465 Connection Security: SSL/TLS Authentication Method: OAuth2 Username: [my email address]

I've also emptied all saved passwords and allowed cookies from sites without any exceptions. Is the version of Thunderbird I have still incompatible with Gmail? Or is there another issue that I might be missing?

Thanks for your help!

Every-time I open up Thunderbird e-mail Version 115.11.1 (64-bit) to access my Outlook E-mail Account, it pops open a box wanting me to enter my password! :-( I can enter it and mark that box to use "Password Manager", but it doesn't matter if I check that box or not, because every-time I reopen Thunderbird it asks me for that password again! :-( This problem just started in the last few weeks...... Once I enter my password, I can receive and send e-mails just fine, but when I close Thunderbird and reopen it, that popup box reappears again, where I must enter my password. (see picture I attached) If I just X out of it, I can't access my e-mail at all, as that box asking for a password, pops back open again asking me for my password AGAIN! Which by the way is 100% correct, as I can access my e-mail through Firefox, Google Chrome or Edge Browser just fine. I have used Thunderbird for years and have NEVER encountered this problem before, I hope you have a fix! I am running Windows 10 Pro Version 22H2. Thanks in advance! Keith

For months I was experiencing the problem of "Thunderbird not responding" occasionally. It was a short duration issue (a few seconds to a minute). I reinstalled Thunderbird several times without success. I read almost every comment available online about this problem and I tried many ideas and recommendations I found without success. Most recently the problem became so serious that it was not a nuisance any longer. It was nearly impossble to work waiting for minutes to open an email or to continue typing while preparing a message and being interrupted by the problem I am describing. I ran Thunderbird in safe mode and determined that none of the add-ons is causing the problem. I turned the firewall OFF and determined that firewall was not causing the problem. I then decided to run Thunderbird in Offline mode and found that the program works normally. Then while in Offline mode I decided to download more messages and the program asked me if I wanted to switch to the Online mode. I said yes. New emails were downloaded and without going back to the Offline mode I was able to work normally without any occurrence of the "Thunderbird not responding" problem. I have been using this workaround for several days now. I download a number of eamails. I try working in Online mode and I cannot do it. I switch to Offline and work fine. I switch back to Online mode and I don't see the problem any longer for the whole day. Do you have any idea as to the origin of my proble? I am running Thunderbird 115.10.2 64 bit on Windows 11. I had the problem originally using Lenovo T490s and more recenlt Lenovo X1 Yoga

Not so newbee here. Very long career in S/W, but 20 years as a Luddite so now trying to catch up.

3 gmail accs - all good. 3 hotkey accs - receive ok, but cannot send - broken recently. These old legacy accs were taken over by iPrimus but are still visible/SameSameBroken at hotkey webmail.

1 of the 3 hotkey is set to Default. It is MORE broken than the other 2. How do I remove this Default? I will choose a gmail account to be the Default. But how exactly do i unDefault the hotkey acc.

No, I don't need nor want, to use iPrimus pop/smtp settings. Yes, the broken hotkey smtp issue is probably no biggy - just work in hand.

Thanks for any assistance... I see this thread is very busy. ps, I remain committed to the goals of Open (free) Software. If only the worldview was as committed, how good it would be for everyone!

As described in [question] I am unable to install addons in Thunderbird: when attempting to install an addon, either via the in-app browser or via a file, a pop-up window appears for which "Add" and "Cancel" buttons do nothing (there is no way to move or remove the window without killing the process).

I am opening this question as this problem still persists over a year and many versions later.

Thunderbird V. 115.11.1-1 on 6.9.3-arch1-1 with Sway WM

Is there a way to schedule a time (daily or weekly) during which Thunderbird doesn't check for new mail?

I have several mail accounts, some for work, some private. I want Thunderbird checking for new mail on my work accounts during my work hours, and pause checking when I get off work. I don't want Thunderbird to check my private mail while I'm at work (or specifically, up until an hour before the end of my workday).

Eg. I'd like to "tell" Thunderbird to check my work account monday to friday from 8am to 5pm, and my private account every workday from 4pm to 8am and every weekend all day. Ideally, clicking on "get new mail" would only fetch mail for the currently unpaused accounts.

I don't want to have to manually pause checking for messages for each account several times a day.

The "check for new messages every ___ minutes" doesn't help.

Disabling notifications isn't a solution - I need the messages (especially work messages) not to be downloaded from the server (or receive notification that there's mail waiting). I'm looking to "disconnect" from work while keeping up to speed with my private communications.

I have just completely reinstalled Thunderbird v115.11.1 after uninstalling the previous installation. There are two problems, possibly linked to a faulty or missing setting.

Remote images will not display, even after specifically enabling remote images for each email, or after turning on "display remote content" as a default. Also it claims there is a potential security threat with Thunderbird's own web addresses: "live.thunderbird.net." and "addons.thunderbird.net.".

I have attached screen-shots of the error messages, and of a thunderbird email that fails to display its images.