I deleted account but did not check to delete data and I can't find it after setting up account again.

I changed POP3 email password to an app password and Thunderbird would not recognize it even though I updated in Security. I was told to delete the Thunderbird account t… (читать ещё)

I changed POP3 email password to an app password and Thunderbird would not recognize it even though I updated in Security. I was told to delete the Thunderbird account then set it back up which I did--I did not check the box to delete files. Finally the new account was able to bring in new emails (POP3) but the old folders/emails are not there.

I read that I should go to %appdata%, roaming, Thunderbird but the dates are from years ago--do I go further to find my data or is there another path or something else I should do?

Unless they were backed up somewhere within Thunderbird, I don't think I have any backup.

Can you please help? Thank you.

Открытый 20

Thunderbird is downloading new messages but failing to display them

Thunderbird is downloading new messages but failing to display them. Other functionality remains active, ie I can see and open messages, delete all the contents of folde… (читать ещё)

Thunderbird is downloading new messages but failing to display them.

Other functionality remains active, ie I can see and open messages, delete all the contents of folders, compose and send messages, but when the software downloads new messages they simply do not display and cannot be accessed.

Not sure if it's relevant, but the message INBOX count appears to be stuck at the number 59, although more messages than that have been downloaded.

Bizarrely this is the message displayed whenever I now open the Thunderbird application (it was there when the problem first appeared and returns everytime). Out of desperation I even made a donation in the hope it would release the messages!

Thank you in advance, Steve Davidson

Открытый 13 10

Why are specific relay emails being sent to spam despite having a filter, and only being removed when the filter is run manualy?

I'm running the current 157.0.1 release on Windows 11, and specifically am having my emails from the AP be sent to spam even though I have a specific filter set to tag th… (читать ещё)

I'm running the current 157.0.1 release on Windows 11, and specifically am having my emails from the AP be sent to spam even though I have a specific filter set to tag them. I feel as if the filter itself is set up properly because when I manually run it the messages will be moved from the spam folder to the inbox and tagged accordingly.

The one thing sticking out to me is these emails are being forwarded through my relay account. I've tried changing the filter to work based on the relay address, but again it only works when I manually run it. I've also tried setting the filter to run both before "and" after spam classification, but neither option works. Ideally the filter would work without me having to go to my spam and run it, and even then I'm wondering why the spam filter hasn't learned by now that those email belong in my inbox.

I'd appreciate any help or solutions; I'm not an email power user or networking wiz though so please try to keep it as dumbed down for me as possible!

Открытый 8 20

onglets des messages ouverts dans thunberdird

Bonjour. Plusieurs onglets correspondant aux messages ouverts dans thunderbird se sont fermés brusquement. Je voudrais savoir comment les réouvrir. Merci de votre aide. … (читать ещё)

Bonjour. Plusieurs onglets correspondant aux messages ouverts dans thunderbird se sont fermés brusquement. Je voudrais savoir comment les réouvrir. Merci de votre aide.

Открытый 6 133

Comcast / xfinity oauth site requesting that I enter my Comcast password. Wild Windows 11 Behavior

I have had Thunderbird on my Mac Monterey synced to my Comcast email address with no problems. Usually I have to enter my Comcast password when I send the first message … (читать ещё)

I have had Thunderbird on my Mac Monterey synced to my Comcast email address with no problems. Usually I have to enter my Comcast password when I send the first message for the day. It has caused no real problems since I obtained this computer, probably sometime in 2021. Within 2023 I obtained a Windows 10, onto which I also put Thunderbird. Last November I upgraded to Windows 11 had kept Thunderbird. I did not do the upgrade myself. The technician used Google Drive and OneDrive for backup. I added a GMAIL address on that system to my Thunderbird installation on Windows 11.

For the past week Thunderbird has been popping up a Comcast site requesting that I enter my Comcast password. This is bizarre! How can I get my Thunderbird to behave more normally on my Windows 11? Thanks in advance. The technician only did the upgrade. I did the subsequent program reinstallations.

Открытый 6 1 91

Changes made to contacts in address book are lost the next time I startup Thunderbird.

I have Thunderbird on laptop. I make changes to a contact in the address book and they seem to be made. When I close Thunderbird and restart it, all changes are lost and … (читать ещё)

I have Thunderbird on laptop. I make changes to a contact in the address book and they seem to be made. When I close Thunderbird and restart it, all changes are lost and are back to what the contact information was before. This has to be fixed.

Открытый 6 71

Connection error Certificates. Works, doesnt work

Connection error: Certificates. Works, doesn't work Thunderbird 157 intermittently fails to connect to imap.shaw.ca:993 with SEC_ERROR_UNKNOWN_ISSUER. It affects two sepa… (читать ещё)

Connection error: Certificates. Works, doesn't work Thunderbird 157 intermittently fails to connect to imap.shaw.ca:993 with SEC_ERROR_UNKNOWN_ISSUER. It affects two separate Shaw email accounts, while Shaw Webmail continues to work normally.

Installed a week ago to replace MS365/ outlook Worked fine. But now it's acting up. Both my Shaw emails as well as my wife's email on her computer.

This does not happen with my domain emails.

Открытый 5

Viewing particular Mails takes 5 seconds (hasprofile)

For a few days I'm having trouble with Asana mails (notification mails informing me about replies, comments, etc). Clicking on the mail to view it freezes Thunderbird fo… (читать ещё)

For a few days I'm having trouble with Asana mails (notification mails informing me about replies, comments, etc).

Clicking on the mail to view it freezes Thunderbird for a good 5 seconds while one CPU core spins at 100%. This only happens with Asana mails (or at least I haven't found any other problematic senders).

I guess it's a problem with validation or parsing of the mail's HTML content. But I don't know how to debug this.

I can't pinpoint exactly when it started happening, but it was around the time I've switched to the [new snap release track](https://support.mozilla.org/en-US/kb/channel-choices-thunderbird-snap-and-flatpak#w_snap-channel-changes-in-2026). But since this happens with Snap and Flatpak I think the culprit may be the 153.0 update.

Things I've tried:

  • Clearing cache and msf files.
  • Troubleshooting mode with add-ons disabled.
  • Reinstallation. Creating new profile + importing old data.
  • Switching from Snap to Flatpak
  • Switching Message Body display to Plan Text or Simple HTML.
  • Disabling HW acceleration.
  • Checking console for suspicious output.

Anything I can do to create handle the problem or collect information for a proper bug report?

Открытый 5 30

Problems with Thunderbird access to Google calendar account

Hi, I have Thunderbird installed and have been using it to do my email on a self hosted server and to connect to a google calendar account. This has been working for year… (читать ещё)

Hi, I have Thunderbird installed and have been using it to do my email on a self hosted server and to connect to a google calendar account. This has been working for years, but now I'm finding when I accept a meeting invitation via email, its not being put through to the Google Calendar. I've reset the google calendar link a few time (deleted and created again from scratch). Its using the caldav interface to Google calendar. I'm also seeing this random message pop up (see uploaded image) - but there is no details on what to do. Anybody have any clues?

Открытый 4 31

When trying to send an email it does not go and I get this message

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) mail.twc.com timed out. Try again. … (читать ещё)

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) mail.twc.com timed out. Try again.

Открытый 4

Unable to attach files to emails (the ‘Attachments’ button does not respond)./ Anhänge an Email nicht möglich (Button "Anhänge" reagiert nicht).

I want to attach a file to an email. However, the ‘Attach’ button isn’t responding. The help button at the bottom of the page isn’t responding either. This hasn’t been a … (читать ещё)

I want to attach a file to an email. However, the ‘Attach’ button isn’t responding. The help button at the bottom of the page isn’t responding either. This hasn’t been a problem before.

Ich will an eine Email eine Datei anhängen. Der Button "Abhänge" reagiert aber nicht. Auch der Hinweisbutton an der Fußleitse reagiert nicht. Bisher war dies kein Problem

Открытый 4 1

Unable to send emalis SMTP error

For a few weeks now we have been unable to send emails through tbaytel server via Thunderbird. We get SMTP error. This happened after recent upgrades to Mozilla. Any idea… (читать ещё)

For a few weeks now we have been unable to send emails through tbaytel server via Thunderbird. We get SMTP error. This happened after recent upgrades to Mozilla. Any idea when a fix will be out?

Открытый 4 41

Suddenly I can neither attach nor insert files into an outgoing email.

I use Thunderbird for email. Suddenly I can neither attach nor insert files/photos into an outgoing email. Also, keyboard shortcut ctrl+shift+A doesn't work and is greyed… (читать ещё)

I use Thunderbird for email. Suddenly I can neither attach nor insert files/photos into an outgoing email. Also, keyboard shortcut ctrl+shift+A doesn't work and is greyed out. I have no extensions and troubleshooting mode doesn't work either. What's wrong?

Открытый 3 3

Lately, Thunderbird has been using excessive CPU time even when idle.

Lately, Thunderbird has been using excessive CPU time even when idle. I am on Windows 11 and running the 153.3.1esr release of Thunderbird. It's impacting other applicati… (читать ещё)

Lately, Thunderbird has been using excessive CPU time even when idle. I am on Windows 11 and running the 153.3.1esr release of Thunderbird. It's impacting other applications. When I exit Thunderbird, everything runs faster. Right now it's using over 7% CPU and about 500 MB of ram.

Hardware is HP Pavilion Desktop 590-p0xxx. Intel i5-8400 2.8 GHz 12 GB ram.

Открытый 2

Thunderbird wide or other views don't display correctly

This seems to have occurred in the last month or so. Whenever I click on a message in the folders pane, the message is not displayed correctly in any of the three layout … (читать ещё)

This seems to have occurred in the last month or so.

Whenever I click on a message in the folders pane, the message is not displayed correctly in any of the three layout views but, if I am offered to display in a browser, it does! Also, if I select 'Edit as a new message' it displays correctly, as also do iPhone and iPads. The screenshot shows the problem?


Any ideas, anyone?

Открытый 2