Thunderbird Community Forum

Hi there - I'm hoping someone can help. Following the July 2025 update to Thunderbird, I was suddenly unable to download my email messages into Thunderbird from my Rogers Shaw email account. When I try to do so, I get the error message: "Login to server pop.shaw.ca with username failed. I'm given three options - retry, enter new password (which hasn't changed), or cancel.

Does anyone have any idea what might have changed post update?

When I opened Thunderbird on my PC this morning, the text of messages received no longer displays. What is displayed is a link to the website to view the message. How can I recover the display please. Thank you. Elise

Having followed the instructions on the desktop, I've copied the QR code to get Thunderbird on my Mobile but the only folder appearing in each of the three email accounts is the Outbox. How do I sync the other folders please?

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Artifacts have appeared within the program. Everything works fine in other programs.

This appeared after the last update. Judging by the picture, it's possible some of your icons are broken.

Please fix this. I can't use the program now.

I now have 2 accounts in Thunderbird: Local (which has years of folders, but stopped receiving email from my Web mail provider) and my webmail Provider that does not download it from the provider. He claimed it is more modern and safer to synchronize across all devices and keep stuff on the web Mail application. I prefer to keep all my folders and emails on my local computer. Should I use POP? iMAP? to do that? Thanks for your assistance?'

Sehr geehrte Damen und Herren, seit vielen Jahren benutze ich Thunderbird für meinen Mailverkehr – zur Zeit mit der Version 147.1. Beim Posteingang habe ich den Ordner <TU> mit vielen Unterordnern zum Abspeichern wichtiger Informationen eingerichtet. Seit einigen Tagen ist dieser Ordner „verschwunden“ - lässt sich nicht mehr abrufen. Bei der Benutzung von <OutlookWeb> mittels msx@tu-dresden.de ist dieser Ordner wie gewohnt vorhanden. Nach geöffnetem Profilordner habe ich die Datei <global-messages-db.sqlite> gefunden, Thunderbird geschlossen und diese Datei gelöscht. Nach wie vor fehlt jedoch bei Neuöffnung von Thunderbird beim Posteingang der Ordner <TU> mit den vielen Unterordnern. Es wäre durchaus möglich, dass dieser Ordner <TU> eine Größe von mehr als 2 GB mit seinen vielen Unterordnern besitzt ? Inzwischen habe ich beim Posteingang eigentlich parallel zu <TU> einen neuen Ordner <XXX> angelegt, der auch angezeigt bleibt. Bestimmt lässt sich dies bei Thunderbird mit einigen Klicks wieder aktivieren. Für Ihre Hilfe möchte ich Ihnen im Voraus danken. Mit freundlichen Grüßen H. Köcher

1. Was able to receive emails sent to my address xxxxxx@xxxxxxx.free-online.co.uk, but unable to SEND my replies. Was getting this notification: 'Send message error. Sending of message failed. An error occurred while sending mail. The mail server responded: Unknown sender. Please verify that your email address is correct in your account settings and try again, OK' (see attached). 2. Checked all settings, all correct as used to be before the problem started. 3. At some stage, I tried changing the password in Settings > Privacy & Security > Passwords > Saved passwords > Saved logins to see if that helped. It didn't. 4. I removed the free-online Server from the Saved logins (Provider: smtp://relay.free-online.net, User: xxxxxxx) with the intention of restoring it with a new password - but found I couldn't restore the free-online server. So I decided the best thing to do was to restore the password as it was before and to ask for help here. >>> That line has now been restored.

NB1. Free-online is a sub section of Plusnet. NB2. Last year I received an email from Greenby saying something about maybe taking over from Plusnet and that I would be notified if and when I had to do anything. I have not received any such instructions so left things as they were. Many thanks for your help from a not-very-techy so stressed old lady.

I just got a new Windows 11 computer. After installing Thunderbird 147.0.2 I noticed there were no columns at the top of the message pane as there had been in the past. I read articles about how to add the columns but could not find the column icon or anything in the header area that allowed me to do what the articles recommended.

I want to add the columns for sorting purposes from time to time but I can't find a way to do it. HELP!!! Please?

Thanks, Clyde

Good afternoon, Since yesterday, I have been having a problem where new messages can no longer be previewed or opened. Emails can be sent, but they do not appear in the sent items folder. Everything works fine on my Samsung smartphone with the Samsung app.

Kind regards and many thanks, Marcel

Dear all,

I would like to use Thunderbird on a shared computer at my universitys lab space (it is mainly my PC but other people have access and use it sometimes). However, as we are requested to keep mails confidential I thought it would be as easy as just setting a primary password and thunderbird would not start if that password is not set. However, that proofed to be a wrong assumption. Instead if I just cancel the dialog it will open and still display all the locally stored mails.

We are using IMAP server and I already set up that the mails are not stored locally. Still, some mails that I have used recently are visible. I am aware that there would anyway be the local copy in the profile folder but I guess none of the people sharing that computer would take the efford to check that, so I would be fine if I could simply prevent thunderbird from starting without the primary password.

Is there any option for that or any extention that would do so?

Thank you in advance! Juergen

Hello, I've just downloaded and started to use Mozilla Thunderbird on my Windows 11 desktop, and have encountered a strange problem. Whenever I compose a new email - it contains a lot of gibberish that looks a bit like a mixture of HTML coding and binary. I've tried changing the format of new emails between HTML and Plain Text and nothing seems to overcome this issue.

 %PDF-1.7

%µµµµ 1 0 obj <

Regards,

 Martin
 martin@baughan.org.uk

Wayne Mery asked me 4 questions. The answers are l. No, the 224 message number is blank. 2. Nothing to click on. 3. Starting in troubleshoot mode did not help.4. My version number show at Help is 147.0.1. (64-bit) currently on the release update channel

I have Thunderbird checking a Gmail email account but also another, non corporate email account. On my iMac desktop computer, I have the email client putting all "Incoming" email into a single inbox. Is that possible to do on Thunderbird? Or, do I have to go to the specific email inbox of each email account that I am checking with Thunderbird?

My computer suddenly started the above error message for multiple programs. The local computer shop was able to sort out what appeared to be the root cause and that recovered some things but I still needed to reinstall a number of programs.

The program I am terrified of reinstalling is Thunderbird. All my emails on five email accounts since 2011 are stored in TB and I naturally do not want to lose any of them.

The major problems are the computer is running Win7 Enterprise and I am 82 years old so I am prone to needing things spelt out in greater detail than many others.

Can anyone provide a way to reset the program permissions (preferable) or identify the best way to reinstall and still access all my historic emails?

Thank you

When i minimize, it starts "eating" ram the computer crashed when it consumed 59GB of ram.. suspect memory leak.. One solution is turning it off after checked for mail...But i kinda want it minimized so i don't have to check by starting it every now and then..