Thunderbird Community Forum

Hello! All the messages in the sent folder have been lost. When I use webmail, all the messages appear normally. I sent a test message from Thunderbird 151.0 (64-bit) / Windows 10 (64-bit) and the message does not appear anywhere in Thunderbird, but I can see it in "webmail". I added the same email account to TB on another PC and I have the same problem. I have deleted this specific email account from TB and reinstalled it, but the problem persists. In Outlook (iPad and PC) it works normally. Other email addresses of the same domain work normally everywhere. The email server provider cannot help me and claims that there is a technical problem on my side. Is there anyone who has any idea on how to solve this particular problem? Thank you.

I have TB version 140.11.0esr (64-bit) running on Win 10. I have multiple accounts and each is set to check for new messages every 10 minutes (nothing else is ticked under "Server Settings). Everything is ticked under "When new message arrives" (and default sound is used).

When new messages were available to download, TB used to play alert sound (and I would know to download new messages) but now TB is sounding (the new messages) alert every time it checks for new messages even if there are NO new messages to download! How do I revert to the alert ONLY being sounded when there ARE new messages to download?

Once in a while, when I download email, Tbird fails accessing outlook.com. The message is in the attached image. If I redownload, it works. Any Ideas? P.S. this has happened with several versions of Tbird... Thanks.

My email was rossmann@telkomsa.net My husband died on 25 May 2023 and telkom closed his account. I opened a gmail account. I am now wanting to open a few emails from 2022 regarding contracts but Thunderbird obviously only has my old email. Please could you assist me Kind regards, Chrissie Rossmann

I had to reset my Windows 10 computer and lost all apps and files.  I have attempted to download Thunderbird to replace the one that was lost.  I had hoped to regain my old emails and files but that is beyond my abilities.  I am a senior citizen [81 years] and have been using Thunderbird along with Earthlink mail [which has been recovered along with some of my emails] for over 25 years.  I also recovered Mozilla Firefox [with my bookmarks].  Now I need to recover my Thunderbird account with my emails and files.  There were many years of emails and files in Thunderbird.  Earthlink mail sent me a link on my cell phone that only required me to touch it to install it on my Dell computer.  I did not set up my computer many years ago and the man who did set it up is now deceased so I cannot go to him for help.  If you can send me a link with which I can recover my thunderbird account along with my files and emails I would be eternally grateful.  My cell phone number is [edited phone# from public community support forum].  HELP!!!  PLEASE!  Thank you very much and GOD Bless You.    Janice Chelf,  San Antonio, Texas

I'm using Thunderbird from a little time anmd I have a problem with "Unified Folders" After installing it, I added my 10 accounts one by one and found out a problem. Simply Thunderbird doesn't want more than 1 "yahoo" account. I can enter even 15 accounts and Thunderbird can manage all the accounts with "Unified Folders" without problems and I see all the accounts. But if I were to add another "yahoo" account, Thunderbird no longer handles it with "Unified Folders". In fact it disappears and I only see it again if I activate "All Folders". I can't understand why. Maybe I need to setup something on yahoo? Can I solve this problem? Thanks PS: I speak italian.

Recently tried to switch back to using Daily, but now I get authentication errors each time I start the program. It's always the following three errors in sequence: Authentication failure while connecting to server imap.gmail.com. The certificate for imap.gmail.com does not come from a trusted source. Non-overridable TLS error occurred. Handshake error or probably the TLS version or certificate used by server imap.gmail.com is incompatible.

I've tried getting rid of all of my saved passwords and even completely getting rid of the account and re-adding it. I've also tried completely disabling my VPN's service in Windows to see if that was somehow affecting it, but nothing.

The oversized menu box cuts off the the "Save" key and I can't re-size the Message Filter/New Filter box nor can I slide it up for access to the button on the very bottom. Windows 10 Home, Version 22H2, Installed on 9/14/2021, OS Build 19045.6466.

I've tried a dozen fixes suggested by Duck AI and none had any effect on the Filter box. Here’s a concise list from Duck AI of every fix I tried:

   Hold Shift while opening the Filter menu (compact popup).
   Shorten long filter names (Tools > Message Filters).
   Change system UI scale (Windows Display scaling).
   Toggle toolbars / layout to reclaim space (View > Toolbars / Layout).
   Use Tools > Message Filters dialog (resizable) instead of the menu.
   Add userChrome.css rules (multiple variants) in profile/chrome/userChrome.css to force max-height, scrollbars, reduced font/padding:
       Generic menupopup rule (max-height: 420px, font-size: 11px).
       Targeted rule including .filter-menu-popup and #createFilterFromPopup (max-height: 300–520px, font-size: 10–11px).
       Final variant replacing values with 360px (no effect).
   Attempted diagnostics via screenshots and Developer Toolbox (Ctrl+Shift+I) — determined screenshots showed Filters dialog, not popup.
   Determined the "Create Filter From" list is likely a native Windows popup (userChrome.css cannot style).
   Workarounds proposed:
       Use the resizable Message Filters dialog to create filters manually.
       AutoHotkey script (Ctrl+Alt+F) to open New Filter and pre-fill From/To/Subject from the selected message (provided full script).

I had received several emails from an individual over the past few weeks. All emails displayed in the inbox (on my desktop computer) as they should. This afternoon suddenly all of these emails disappeared from the desktop inbox. The emails are still on the server and are and can be viewed in the inbox on my laptop but not on my desktop. If I use the quick filter function in the desktop the emails are there but not in the inbox. I assume some sort of filter accidentally was activated (I did not attempt any filter changes) but I can't find how to remove this filter function so the emails again appear in the inbox as they should. Please provide detailed instructions how to get these emails to reappear in the desktop inbox.

I have been using this system since 2008 through a company called Bluewave. They are shutting down at the end of May and I need full service for everything but main email. I need to talk (like on the phone) to someone who can help me in some way. I am not computer savvy so please have someone patient. I own AuPurr Cat care and don't want to lose our database, etc. info already on file. Am I contacting the right company for this help? My direct # is [edited phone# from community support forum]

Hello,

This would have been a reply to https://support.mozilla.org/en-US/questions/1390397?utm_source=chatgpt.com which is one of the top google results for "Thunderbird make font fixed length addon"

Some html text is hard to read, I would like a button, to make it all one more readable font. (font override toggle button to variable lenth font) and a button to make it a fixed length font (font override toggle button to fixed lenth font) Maybe a button to also strip formatting like bold/italic/coloring etc..

The solution

Preferences > General > Language & Appearance > Fonts & Colors > Default font > Advanced > Font Control > Use fixed width font for plain text

Which is too deep into the setting to casually flip for one message and then bring back to normal. I don't want this forever, just when there's one hard to read email.

I have been using this system since 2008 through a company called Bluewave. They are shutting down at the end of May and I need full service for everything but main email. I need to talk (like on the phone) to someone who can help me in some way. I am not computer savvy so please have someone patient. I own AuPurr Cat care and don't want to lose our database, etc. info already on file. Am I contacting the right company for this help? My direct # is [edited phone# from community support forum]

Hi there,

When attempting to send emails through Thunderbird, I get the following error messages:

Login to server smtp.long-mcquade.com with username X@long-mcquade.com failed.

Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the ‘Authentication method’ in ‘Account Settings | Outgoing server (SMTP)’.

When testing the server connection in server settings and outgoing server settings, I successfully establish a connection, yet I am still unable to send messages.

(PII redacted by moderator)

I've done it many times - copy the folder under Profiles to a big memory stick, copy that into Profiles on my other (travel) computer, and all is well. But this time, I got the "old version of T-Bird" message. Nothing I try fixes it. I made sure that both computers downloaded today's versions. It keeps giving me the "old version F you" message. Help!!!!

I am trying to reinstall Thunderbird on my computer using Windows 10 and I get a pop-up box requesting to sign in to my Google account and then an authentication error message. How do I get past this?