Thunderbird Community Forum

Hi folks

When I tried to start up Thunderbird this evening, it has taken me to a set-up page. I seem to have lost all the settings, all my previous (about 3000 !) e-mails in my Inbox.

I obviously don't really want to set it all up again, but it has been working for years without a problem, and then suddenly this happens. I had now a 'warning' message saying that Mozilla Thunderbird wants to make changes to your computer - do you accept? I don't want it to make any changes unless it is to revert back to how it was.

Can anybody help me?

Thanks.

Hello,

I have an old (Windows 7!) PC with an older version of Thunderbird (not sure which version) on it. My PC died, but the hard drive is still perfectly fine and all of the files are intact. I recently bought a Mac Book and wonder if it is possible to install Thunderbird for Mac on it and then import all my messages and contacts from the old PC hard drive using an import tool.

Thanks very much in advance for any advice, tips, suggestions, etc!

Hello.

I just installed thunderbird for the first time and i really liked it but there is a problem some of my emails particularly from from Fiverr don't show Fiverr logo at the top within the email maybe that logo has linked wrapped in it on which i can click and it take me directly to my fiverr profile. These are official emails from fiverr. What i have tried: I tried every possible solution that i can get on internet. Show Remote content turning on and off, Turing Simplified view on and off. Turning of the Proxy from auto detect and Turning the DNS off. Fiddling around view settings. Changing settings in Configuration like mailnews.message_display.disable_remote_image, browser.opaqueResponseBlocking.javascriptValidator, browser.opaqueResponseBlocking, etc. But it didn't load the logo image and keep showing broken image place holder. This is also the case with my bank mail, my bank email sometime have an image with warning about OTPs not just text it also don't load. I also tried disabling the spam protection and i only use minimize to tray extension which i disabled to check if image loads or not ans tried to run it in Troubleshoot mode but no luck. I will really appreciate If anyone could help me and fixed the issue . :)

Thanks.

Hallo zusammen, ich habe Mozila Thunderbird im Einsatz. Mein e-Mail-Konto lautet: g-s.oberle@t-online.de.

Seit Ende Januar 2026 kann ich keine e-Mails mehr empfangen. Klicke ich auf den Button "Nachrichten empfangen", erscheint folgende Meldung: Anmeldung auf dem Server secureimap.t-online.de mit Benutzernamen "g-s.oberle@t-online.de" fehlgeschlagen. Über mein Handy kann ich die eingegangen E-Mail ansehen. Warum auf meinem Laptop nicht?

Bisher habe ich noch nie ein Passwort eingegeben. Was muss ich machen?

Im Voraus vielen Dank.

Mit freundlichen Grüßen

Sandra Oberle

I just opened a Startmail account---works great--but no subfolders are showing up on Thunderbird...not sure how to make that happen--always worked seamlessly with gmail.

I have two successful emails running in Thunderbird Email, on my MacBook Pro, macOS Tahoe 26.3.1; however, a third one fails to get registered. The error message says unable to access server, " which may be due to username or password. I have checked several times to make sure I am entering the correct email and password. Still no luck, and my email service provider, "Rogers Together With Shaw," says that everything is on their side, is correct, as I can access my Webmail they have, which they assure me goes via the Internet, like any other email app out there, meaning the problem resides with Mozilla Thunderbird. Ask them. I am now asking. Looking forward to a meaningful reply.

Before I recently (& reluctantly) upgraded to TB 140.8.1esr, I used to be able to paste the following in the Error Console to get a URI for an email message (or template) that I wanted to access from my calendaring app (EccoPro -- yeah, I know, one of those "from my dying hands" things, but it has never been equaled much less surpassed, just choked in the cradle by MS Office).

var hdr = gFolderDisplay.selectedMessage; alert(hdr.folder.getUriForMsg(hdr));

I would highlight the message I wanted to use, hit Shft-Ctrl -J, and paste that in the console.

I would get a notice with something like this which I could copy

"mailbox-message://nobody@Local%20Folders/Templates#10"

I could then put a clickable link in my calendaring app to run

"C:\Program Files\Mozilla Thunderbird\thunderbird.exe" -mail "mailbox-message://nobody@Local%20Folders/Templates#10"

That message would open. Then I could hit Ctrl-E to edit it, paste as needed, and send .

This worked very well. I did not come up with it. I struck gold with Google and just copied it. With something similar to AutoHotKey I was able to automate it.

Now those URI codes no longer launch at all, and I cannot get new ones because when I paste

var hdr = gFolderDisplay.selectedMessage; alert(hdr.folder.getUriForMsg(hdr));

into Error Console I get

Uncaught ReferenceError: gFolderDisplay is not defined
   <anonymous> debugger eval code:1
   getEvalResult resource://devtools/server/actors/webconsole/eval-with-debugger.js:306
   evalWithDebugger resource://devtools/server/actors/webconsole/eval-with-debugger.js:218
   evaluateJS resource://devtools/server/actors/webconsole.js:895
   evaluateJSAsync resource://devtools/server/actors/webconsole.js:788
   makeInfallible resource://devtools/shared/ThreadSafeDevToolsUtils.js:103

If I had known what I was doing in the first place, I might be able to adapt to this version of Thunderbird. Something obviously changed in how the Error Console operates or something.

Does anyone know anything about what command could generate a message URI so I could open it from another app using the command line?

-Chris, the Reluctant Hoosier

Hello

i am struggling with TB as it always uses the default email of a server account.

Instead, i would like to use different accounts based on the recipients

I could not find an extension with this behavior.

For example, I would like all email exchanged (sent & received) to a domain ( @thatcompany.com ) to use a given account alias (myalias.email@proton.me)

Thanks for all assistance

Good morning . . . I have recently switched from an old Windows 10 machine to a new macmini, and have switched my Office 365 account over to it. Simply stated, Outlook is not working, and I have no desire to continue with it. Will Thunderbird suit my needs? Will it allow me to import my old contacts and emails, both from my Windows machine and the new MacOutlook?

I am trying to setup Thunderbird using one User-ID and PWD combination, with multiple email addreses (Spectrum ISP). I have executed the Profile Manager but it seems to use the email address provided as the account access User-ID. This is not working in my scenario. I need to provide to Thunderbird User-ID and PWD credentials once, and retrieve/send email for multiple email addresses. My ISP (Spectrum) supports multiple email addresses (up-to 5) that are associated with one User-ID and PWD.

When I send a mail with FileLink, I get the message: "The message could not be sent. An error occurred while sending the email. The server responded with: “Spam message rejected.” Please check the message and try again." (actually, in French: "L’envoi du message a échoué. Une erreur est survenue lors de l’envoi de l’e-mail. Le serveur a répondu : Spam message rejected. Veuillez vérifier le message et essayer à nouveau.")

I made different tests:

• change email source (so, change SMTP server): it worked - but I do not want to change the standard SMTP server of the initial email address
• after the first error, the attached file, which is a shortcut to the big file, can be suppressed, and not the link in the body of the message ; sending the message is accepted

So, I suspect the spam filter to refuse the "attached shortcut".

The question: Is there a way to configure the FileLink feature so that it does not attach a file, but just add the link the body of the message?' Or are there other neat workarounds?'

I was using TB like normally on windows 11 when it crashed. Now every time i try to open the app it prompts me to send in a crash report, but every time i press "restart thunderbird" a new window with crash report shows up. I have tried writing a comment, checking and unchecking all the boxes and pressing quit thunderbird. But i still get sent into the loop.

Hi I am having problems signing into or adding my tpg account email address through both outlook and thunderbird. My address and passwords are correct and I have used the settings in both email programs as listed by the messaging company. The error message I am getting is that on thunder bird it cannot find the settings for my emaill account and on outlook it cant find the settings. I have had ongoing issues with my tpg account, this one is a pop3, since the messaging co took over the emails when tpg moved them to there. Issues are that i get very sporadic emails ie one week working the next nothing for long periods of time. I can successfully add gmail accounts to thunderbird and outlook without problems but the tpg one is my issue. I can get tpg emails through the gmail app on my phone with pop 3 settings but nothing on thunderbird. I have contacted the messaging co for help but other than settings they cannot help and suggested coming to thunderbird for help. I prefer to use thunderbird as my email program to have everything on one would be great again. Can anyone offer advice or assistance I would greatfully appreciate it

Thunderbird suddenly will not download my mail. Instead, it stops and resets the connection to the POP server and gives me a pop-up message saying: Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox.

I've deleted almost all messages in my Inbox and everything in Trash. I've gone to my webmail and deleted any messages I don't recognize on the server. I turned off my firewall. And I checked my settings, which seem to be fine. All to no avail. Thunderbird still won't download my mail and gives me the same message over and over.

What do I do now? Please help!

Please help! I have not received emails on thunderbird for a week. I have had to go through my web browser. I received messages that thunderbird is temporarily unavailable. What is the problem? How can I resolve this issue? Thank you very much!!