Thunderbird Community Forum

This evening, Thunderbird has updated to the new version (can't see where the version number is held, unfortunately). Whenever I try to download new emails, I now get the message "Error with account [email address]. Sending of username did not succeed. Mail server pop3.iomartcloud.com responded: Mate, the command must be one of CAPA, USER, PASS or QUIT." Mails are still accessible through the mail client on my phone and through webmail, just not through Thunderbird.

I understand that Postbox, based on Thunderbird, will never be updated to become compatible with Apple silicon chips. Therefore Postbox will cease to work when Rosetta will be deprecated on macs. Consequently my question is where can I find directions to import messages, filters, and preferences from Postbox to Thunderbird?

The folders and address lists exist in .thunderbird/5sdfwbvt.default /Mail/Local Folders

and in  .thunderbird/5sdfwbvt.default/storage/abook/mab  and abook/sqlite

How can I get thunderbird to access these resources??

I have used Thunderbird for years with automatic update. Got a Big yellow warning - something like: this is a test version, the profile must not work in esr version. I immediately stopped. Downloaded the esr version and started it. Thunderbird could now not read my profile an initiated install procedure. I saved the profile. Can I see in the profile which version of Thunderbird it can be used under ? You aught to give i clear warning in test versions when you change an user profile.

I downloaded Thunderbird 120 and installed. All I get is error message saying windows is searching for thunderbird.exe and nothing else. Old version has disappeared and I can not uninstall - get same searching for uninstall.exe. I have tried re-downloading it and re-installing it 4 or 5 times, still nothing. help please.

I am using Thunderbird on Windows 11 and I have foolishly allowed it to update itself to release 128.1.0.esr without checking the bug reports first. Now it turns out that this release removed the possibility to search the calendar for past events, which is absolutely essential for me. There is a Bugzilla entry for this but it is bogged down in discussions about who needs which date ranges to search in and how many instances to show for recurring events, so I don't expect a solution any time soon. How can I revert Thunderbird to the last release which still has that functionality? I have regular backups of my userprofile folder in case it helps.

I'm setting up a new Thunderbird installation and email accounts. The account setup fails because it cannot sign into the server. I believe the issue is between the account ID and the email address. They are different. The server requires an account login in the form of wxyz in order to access email in the form of a@bc.de. The account ID password is the same as the email address password. I've tried using wxyz in the account and get smtp connect failure. If I use a@bc.de in the account I get the same failure. This is a working email account that I've had for 30 years. I've tried imap as well as pop3. Both fail the same way.

Tried installing v115 latest on Ubuntu. Hangs when I try to set up email acc and it tries to log into the Gmail server. "Danger ahead" displayed on page with no option to force it to proceed.

Thus please dispense with any solutions for this and just inform how I can install v91.1.2 using apt-get

I see you list the versions but I see no where on how to specify which version to install.

I am running Thunderbird Flatpak from Flathub on Linux Fedora.

I just checked for updates in Software app. I noticed a few, plus system updates so ran them. I remember seeing Thunderbird reported something weird like ‘v128 [arrowright] v115’. I am making that up but I remember two numbers and the left hand one was a higher number than right hand one.

I thought it was odd but carried on, assuming Software updates never go backwards so it must be some weird anomaly. After rebooting, after updates done, I now get an error/warning when I open Thunderbird…

Screenshot - https://ibb.co/Lgg2hb9

I’m now confused and worried I screwed up my Thunderbird, in which is 20 years of email. Hoping someone can allay my fears and perhaps advise what I should do? thanks

I've setup Thunderbird as my new email client but I'm getting the following error message on both mailboxes. Went through manual confi and it said all was good. Can't figure out what I'm doing wrong. Any help greatly appreciated tks - patrick replies to: prpa1440@gmail.com

I'm using Discover to update Flatpak apps. A few days ago it updated to the latest 128 version of Thunderbird and I had subsequently made some changes to my profile and the details.

I wasn't paying attention this morning when updating via Discover and, once finished, found that Thunderbird had been downgraded to 115, leaving me unable to open it without the "A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version." message.

I don't want to create a new profile, so what's the best way for me to switch back to 128 while maintaining the profile I had set up on it?

I have about a dozen accounts set up on my laptop. I want to have the same accounts on this desktop system. I am loathe to do so by using the standard Tools > Account Setup process because every time I have done so in the past several months, I've had validation problems with the email servers at the ISPs. I've had to change every password to create baseline values before TB could add them even though I had valid passwords copied from a password vault program.

Is there a way to just copy or transfer the data from the laptop to this desktop? I have a couple of the accounts set up here but would like to bring the others over without having to go through the setup steps.

updated from 128 to 129 and now T-Bird is broken. First it opens a second T-Bird apt instead of the original apt. Second the graphics are screwed up as the top tool bars are white with very unreadable faint buttons, so I can not pick and chose , and when replying to an email the header graphics have too much dark which covers the formatting tools and other parts of the header. There are several other problems that I have not found yet as I have only had this update less than 24 hours.

See the screen shot of my broken version 129 of T-Bird. It needs fixing and fixed quickly. How do I revert back to 128 which worked perfectly.

I have installed Thunderbird and want to set up an email account' . I enter: Name : Roger Keelingling@f2s.com pw : ******** (I have checked this visually and tried many times - must have got it right once)

I get the message "Thunderbird failed to find the setting for your email account"

According to f2s the settings should be as attached. I have tried manual setup with many options but nothing connects properly (or at all). On some attempts I get a message "The certificate for inmail.f2s.com is not valid for this server" (flashes up too quickly to read accurately). Any suggestions on account setup?

Since the update of Thunderbird 128.1.0esr (64-bit) it freezes every couple minutes on a profile with 3 email accounts. One - no longer used - has about 2300 emails and is kept to access old emails.

The second is my primary Gmail account with 4351 emails in Inbox and 2234 in Outbox. Inbox shows 1.2 gb and Outbox 911 mb. The freezing has caused very significant challenges with reading and sending emails due to the freezing. As it is my primary email it is extremely concerning. And I am in the middle of a couple huge projects so I am getting a lot of emails.

The third is minimal with 26 emails.

I know it is not the number of accounts in the profile as I have 4 other profiles with more accounts and none of them freeze at all. (I manage/monitor other websites and keep them all separate.)

Also as others have noted the Filter function is doing weird stuff and rarely works properly anymore.

Hi, Where are imap message filters stored under Thunderbird Nebula? On an exact transfer from Win10 Supernova to Win 11 Nebula, on separate laptops, my new imap message filter list is completely blank. Only my Local Folder filters appear - which do not work on live emails.

I can create new imap filters but I cannot find them in any msgFilterRules.dat file on the new Win11 system.

Any help you can give would be greatly appreciated.

I have Thunderbird installed on two Windows machines that I manually keep in sync. I copy my data files and profile back and forth between the two machines as I use each one, and I keep them updated to identical versions. Have been doing this for years with no trouble.

Last time I clicked on "About Thunderbird" on one machine (A) it offered to upgrade from 115.10.1 to 116.0 (auto updates turned off). But the actual update failed and now its offering only to upgrade to 115.14 esr. OK, but now I'm concerned the other machine (B) with the same update prompt (to 116) might not follow the same path, then I have the two versions out of sync and that is a real PITA to fix as I discovered once some years ago.

Why didn't I get the 116 version that was offered in the dialog, and instead switched to esr channel, and how can I be sure the other machine will switch to offering 115.14 esr also so I can keep identical versions? I thought of creating Windows restore point just in case so I can roll back but would rather not risk it.

I wish to transfer my Thunderbird accounts (i.e. I have two different email addresses in one Thunderbird installation) from my 'old' PC to my 'new' laptop.

Historically I have backed up my emails by copying the Thunderbird folder from <user>/AppData/Roaming/Thunderbird and pasting it to my backup disk. This has worked well for more than 6 years. In that time, I've had to recover a couple of times by simply re-installing Thunderbird, establishing it with my main email account (ian_and_maureen@yahoo.co.uk), then replacing the newly established .../Roaming/Thunderbird folder with the archived one, thus recovering all my subfolder data in the Inbox of ian_and_maureen... plus a second email address.

I've tried to do this with the laptop, but I don't fully recover the historical data, all I get is the current Inboxes for the two accounts with no historical data. Can you advise me what I'm doing wrong? If this is the wrong way, what is the correct way? It seems essentially the same action as is described by the guide found at Moving Thunderbird Data to a New Computer | Thunderbird Help (mozilla.org)

My PC is running Windows 10 Version 22H2 (OS Build 19045.4717) with Thunderbird Version 115.13.0 (32-bit). The Laptop is Windows 11 Version 23H2 (OS Build 22631.3958 with Thunderbird Version 115.13.0 (64-bit)