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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'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 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?

I just updated my iMac from Mojave to Catalina 10.15.7. I thought Firefox would provide an update to convert the esr version to the standard Firefox browser since I am no longer using Mojave, but the next update is 115.15.0esr. Is that correct? My understanding is that the esr updates are just for computers using older operating systems through Mojave. I did not update to 115.15.0esr since I am not sure if that is the right version for Catalina. Any information and assistance you can provide me is greatly appreciated. Thank you.

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.

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 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)

I'm running on windows 10. Evidently, Thunderbird updated itself last night and today my entire configuration is trashed. I'm going to have to re-set everything back up from scratch. Not Good and I'm not happy

Just downloaded Thunderbird onto pc running Windows 10 and tried to link it to my wife's custom domain email that is hosted by GoDaddy with Microsoft 365 email. Thunderbird recognizes her domain based email address and sets everything up but when it tries to connect and get emails from the Microsoft 365 on GoDaddy I get a notification window shown in the attached picture. Godaddy is no help as they don't support third party programs. Have been using Thunderbird for years on my Mac so thought it would be great for my wife on the pc. Thanks for any help.

I was forced to update my email password by my provider (another story). I use a POP email account, so then needed to update the password in my Thunderbird account settings. But the previously stored accounts and saved password line had disappeared. How do I re-add my POP account with its new password to the saved passwords, or maybe create a new POP account and relink to everything listed in Local Folders (this latter option is not my preference?

Having just installed the new update 128.0.1esr on two different computers running on Windows 10, we have the new problem that when composing new emails the text does not wrap to the window.

Changing the message format (Automatic, plain, HTML) does not make any difference.

Changing the wrap length to 0 in the Config editor does not make any difference either.

This is actually a real nuisance of a problem and we'd be very grateful for help. I suspect this is a bug in the new update but in until it gets sorted out we basically are going to go mad trying to write our emails. Is it possible to revert to the earlier version of Thunderbird, and if so, how?

Many thanks for any suggestions.

Hallo, ich habe einen neuen PC mit neu Win 11. Da habe ich Thunderbird neu installiert. Alle meine Mails sind bei Web.de gespeichert. Durch die neue Installation sind alle persönlich angelegten Ordner unter dem Ordner: "Lokale Ordner" verschwunden. Wo kann ich diese wiederfinden? Liebe Grüße Hans

Hi guys, an automatic update seem to have made my Thunderbird Flatpak unusable. I have literally thousands of Emails in several Accounts as POP3 and need to access them. Suddenly since today I get the error message "You have launched an older version of Thunderbird" (Create New Profile) (Quit). Both choices are not acceptable for me. Any ideas what I can do? Any help is appreciated!

Trying to install Thunderbird on a new laptop but getting "unable to log in at server. Probably wrong configuration, username, or password." I don't know what the right configuration should be, but the username and pw are correct.

setting up a new computer, trying to set up my gmail account on Thunderbird I get this message... Secure connection failed

' live.mozillamessaging.com uses an invalid security certificate.

The certificate is not trusted because the issuer certificate has expired.

(Error code: sec_error_expired_issuer_certificate)

   *   This could be a problem with the server's configuration, or it could be
     someone trying to impersonate the server.

   *   If you have connected to this server successfully in the past, the error may
     be temporary, and you can try again later.

  Or you can add an exception…

I have 2 machines side by side, the old works just fine , its 12 yrs old, i want to use my new one... how do I fix this ?? And yes ive tried manual settings and all that.. its the certificate in Thunderbird thats expired it says

Hello everyone,

support for Windows 7, 8 and 8.1 will end in September with the end of the ESR 115 branch. Corresponding support article

Is this still the current status or are there any plans to support the old Windows versions for a little longer?

Thanks and regards, Martin