Thunderbird Community Forum

For whatever reason after the lastest Thunderbird update Windstream is refusing the connection to Thunderbird email client. I have gone through all of the delete .msf files for all of the inboxes tried adjusting server settings to no avail on anything.

Hello, Thunderbird starts with "Authetication Failed" for my main account. After deleting the saved account/Password in Thunderbird it DOES NOT ask to enter a new one. It seems, Thunderbird hast still the Old informations saved, but it does NOT appear under Passwords / User Accounts in Thunderbird. How can I enter a new password in Thunderbird ? Has anybody a REGEDIT clue or any other help ? THANKS

I want to get all my emails down and saved before Yahoo starts deleting them. I asked already and got directed to the tool Importexporttool.NG which I got. Installed. Tried it. It didn't work. Something wrong on that machine. Big mess. Now I am here on a new machine: linux mint, new Thunderbird. complete with the tool. I have got two accounts with yahoo. I have one set up via IMAP and it has downloaded everything. Inbox and nearly 100 custom folders. The second one is not set up yet. Next step I think is to get all these emails, custom folders and all, into 'local folders'. Then set up the other account and do the same Then I'm done. Right now I have a hitch: can't clearly see how to do this with Importexporttoolng and certainly don't see any other way. You will appreciate that with 100 folders manual on each folder is something i want to avoid if i possibly can. We only have about three days left I think. Anyone can steer me through this?

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ThunderBird upgraded to v153.0. Since then EAS and TBSync have stopped working. Extension Manager have disabled them and report both are incompatible with TB v153.0.

The option to "Find an alternative add-on" for both fails to find an alternative version to work with TB v153.0

Are newer version of EAS and TBSynce imminent?

Bill

Cannot send or receive email all of sudden in Thunderbird. When I the click the messages icon, nothing happens, and I get "Could not connect to server mail.twc.com; the connection was refused". When trying to send a m,message I get "Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) mail.twc.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again." No settings were changed and everything was fine when I put the computer to sleep. This happens on both a Win 7 and 11 machine Email is a Time Warner (now Spectrum) Road Runner account (twc.com). Spent an hour with Spectrum, and they say this is a third party (Thunderbird) issue. A friend has the same setup, and is having the same problems that started at the same time. Win 11 version 150.02 Win 7 115.18.0 (latest available for win 7)

Appreciate any help....

Everything has been fine for several years but this morning I now get error: TB could not connect to server mail.twc.com, the connection was refused. Spectrum says everything is good on their end. What do I have to do to "fix" Thunderbird? I can't send or receive any emails from 5 accounts with Spectrum and the emails are there when I log in at WebmailSpectrum.net..

1. How to move mail between two different Macbooks with different OSX and different versions of Thunderbirds?

How do I move my email profiles (there are several) from an old Mac to a new one, when the old Mac can't be upgraded anymore and the Thunderbird versions don't match?

Old Macbook OSX Monteray 12.7.4 can not go any higher on OSX due to hardware not being compatible Thunderbird 140.5 Oesr 64 bit - don't know if it can be updated or not, but expect not. Minimizing run time as much as I can because the fan is going nuts and I think the battery is going - gets very hot.

I copied all the different profile folders from the Old Mac to an external drive. However, I don't think I can just plop them in to the new Profiles folder on the New Mac, given the Thunderbird versions and OSX version don't match.

New Macbook OSX Sonoma 14.1 Thunderbird 153.0.2 aarch64 Not updating to Tahoe yet because then I can't use my 2019 MS Office products - need to save up to update those first

All I need is e-mail - not calendars, contacts etc., although it might be nice to to have those Thanks in advance

2. How to .pdf old emails (With attachments) Also, the profiles folder is huge (219 GB), with multiple profiles and I want to save old emails (with attachments) into .pdf and appreciate advice on what .pdf converter/file converter would be best. It doesn't have to be free. It does need to respect my privacy.

Na versão 153.0esr do Thunderbird, quando se clica na pasta com o botão direito do rato, o menu não apresenta a opção de adicionar pastas aos favoritos. Para além disso, quando se arrasta uma pasta para a área das Pastas favoritas do menu esquerdo, nada acontece.

Hi, I just installed Elementary OS on a Dell M6800. The OS runs well, and I have multiple email accounts, so I installed Thunderbird from the Elementary AppCenter. It showed up as a flatpak install, but I went ahead.

Now, in the past when I tried to replace the .default-release file with one from another machine and rename it with the new filename (which is what I've always done to transfer my multiple emails and address book),

I went to the usual place, which has always been /home/myusername/.thunderbird/whatever.default-release, but it wasn't there. Going to Help/Troubleshooting Information/about:profiles shows it there, but won't open it when clicked on.

The only place I could find it was in /home/myusername/.var/app/org.mozilla.thunderbird/cache/thunderbird. But when I replaced and renamed the .default-release file there, and then restarted the app, I still did not have my old data. How do I go about this with a flatpak installation? Thanks in advance.

I have been using Thunderbird since over 7years, facing issue since few days. Have my personal mail linked to my website hosted on a unix server. All sent mails were earlier visible in Sent folder. But now since a week only yesterday's mails are visible. All previous mails are in a subfolder by year 2026 in Archive. This makes it difficult to search sent emails. While this is not an issue for the Inbox where I can see emails from 2017. Please suggest how can I restore all my previously sent emails since always, to my Sent folder.

I recently got a notification that a Thunderbird update was available, so the update was downloaded and installed.

Next I went to my inbox to tidy it up, by deleting some items and archiving some that I wanted to keep. On looking at the 2026 archive none of the items where found.

Why has this happened and is there any FIX ?

// File: Thunderbird.js (Optimized Version) // Executes Thunderbird from a USB drive using the local USB profile path.

var Shell = WScript.CreateObject("WScript.Shell");

// Returns the drive letter or directory where this script is executed var USB = Shell.CurrentDirectory;

// Ensure the path ends with a backslash if it doesn't have one if (USB.charAt(USB.length - 1) !== "\\") {

   USB += "\\";

}

var ThunderbirdVersion = "07";

// Construct absolute paths to the executable and the profile var PathToExe = '"' + USB + "Thunderbird\\" + ThunderbirdVersion + "\\Programme\\thunderbird.exe" + '"'; var ProfilePath = '"' + USB + "Thunderbird\\" + ThunderbirdVersion + "\\Profile" + '"';

// Combine the executable path with the portable profile switch var Command = PathToExe + " -profile " + ProfilePath;

// Run the application (0 hidden window state, false to not wait for execution to finish) Shell.Run(Command, 1, false); Shell.RunThunderbird.js

Whenever I use Thunderbird (TB) I get the following error message:Thunderbird is damaged and can't be reopened." This file was downloaded on an unknown date. What is the problem and how can I get rid of the error message.

The issue has been "An error occurred connecting to mail.mediacombb.net:993." on the server page, where you can "test connection to server" in Account > Server Settings > Security Settings. I get the same error message for each four different accounts. I have no problems with the other two different accounts not associated with Mediacom (MC). I contacted MC and they said my settings were correct and to contact TB. I have read several posts with no real solutions except that was resolved through an update. I plan to switch to a different Linux distro later. I am currently using Big Linux Manjaro with the latest update. Note that I had no problems with TB until last month. I do not do the uninstall/reinstall apps unless it will resolve my issues as a last resort. Second, sometimes I receive MC e-mails and did not run the "test connection to server," then until today while troubleshooting for several hours. I was trying to send out an e-mail, which I had no problems last week. I already went to Account > Server Settings > Advanced and changed the "Maximum number of server connections to cache" from 5 down to 1 with no luck.

  The e-mail server settings are:

imap.mediacombb.net 993 SSL/TLS Normal Password and smtp.mediacombb.net 587 STARTTLS Normal Password They have not been changed since I switched from windows 10 to Zorin 18 to currently Big Linux Manjaro. I attempted to locate a method to check if the server settings were correct via Terminal. M$ Outlook has a test page that you can send to yourself or another e-mail account. Last, MC tech informed me that M$ Outlook is more friendly than TB. I know that I have used M$ Outlook for years and rarely had any connection issues unlike TB. Unlike Evolution, which was my first after M$ Outlook, TB is much better and easier than Evolution. Thank you in advance for your time and advice.