Forum der Gemeinschaft Thunderbird

After this last "update" that went backwards in usefulness I can not find folders that I had with a lot of info I want and need, both business and personal. IF this can not be fixed do you have a recommendation for a better free email client system? I have lost needed information.

Your how to find what version I'm using is garbage, try to either make the instructions complete with a step by step for what option to go to or make it an auto fill when coming to this page. I had to guess.

Thank You Mike Gert [redacted]@gmail.com

I'm running Thunderbird v. 153.6.0esr (64-bit) on my notebook computer desktop. Yesterday I attempted to re-add an e-mail account to Thunderbird after deleting it to update the settings for that account so that they'd properly align with my ISP's server settings for the account. This originally came about after I changed the account password a couple of times, and found myself unable to send e-mail from Thunderbird. I was, and still am, able to send e-mail from the ISP's webmail app, however.

I installed the update to the Program files folder, which was the default location. Immediately after upgrading, I noticed that the deleted user e-mail account was restored in Thunderbird. The account settings, including server settings, appeared to be correct. Upon closer inspection, I also noticed that the most recent e-mails saved in the inbox and in folders for the two accounts with the same domain name dated back to last year or earlier, even though I received many e-mails addressed to those accounts in Thunderbird since then I can't explain why that happened. Something else rather strange happened: Both the former Thunderbird installation v. 153.6.0esr (64-bit) and the new, upgraded installation v. 160.0 (64-bit) now appear on my Windows taskbar. The first couple of times I did the upgrade to v. 160.0 (64-bit), that version's icon vanished after a few minutes and I was left with the previous v. 153.6.0esr (64-bit). Today, however, I launched Thunderbird from the upgraded Thunderbird.exe app found in the Program folder, which accounts for why the upgraded app's icon still appears on the taskbar. Yet I can still run the previous version just as I could before the upgrade, albeit without the previously deleted user account I sought to restore.

Although what I described may sound like a blessing as I have my choice of versions to choose from right on the taskbar, Moreover, two related Thunderbird apps were restored as well following the upgrade: Lightning and my Address book, although with the same date limitations mentioned above concerning the e-mail files. This very much concerns me, especially because the e-mail files in the upgraded version appear to be outdated by, at first glance, four months to > 1 year. I'm also concerned because I thought the upgrade process would be automatic. This upgrade, however, was anything BUT automatic.

I find myself getting busier with work these days, and as we're nearing the holiday season. I simply don't have time to troubleshoot this now. I can use Thunderbird on my mobile phone without a problem. I don't wish to use it on the ISP's webmail app as it would simply be too inconvenient in the long run. Please help if you can, at least by offering or providing an explanation of why the above anomalies happened. Also note that I have a recent full image backup of my hard disk. I'll be glad to make screenshot images of this latest configuration available to you upon request.

I have one more, but related, request. If you know of a way I can restore the deleted user account I referred to above to my previous version of Thunderbird, 153.6.0esr (64-bit), let me know what that is and I'll gladly delete the new v. 160 I upgraded to. I'd like to be able to upgrade to that version smoothly and without the inconsistencies I encountered with this upgrade, but I recognize the need to do it without losing at least a year's worth of e-mail data, as described above.

I have a Win10 PC and a Win11 Notebook. Yesterday I could open my email accounts on both: PC and Notebook. But today suddenly I get the notification, the Thunderbird versions are different and I can not open my email account. Thunderbird versions on PC: 153.6.0esr and Notebook: 159. Why did Thunderbird on the PC not actualise automatically to a newer version, even under Help/About is written "Thunderbird is actualised"?? see attached screenshot.

When Thunderbird last updated it trashed my email client. I have been in the process of trying to rebuild it. I am now at the point of having changed the StartWithLastProfile=1 to a 0 so it comes up with a choice of profiles. Unfortunately this is a blind alley. When I tell it to choose the profile with all my emails, etc. I get the attached screen. "More information" does not help. I cant get access to my Thunderbird to confirm my build but based on what I have here I think it is 158ESR. I'm surprised that it thinks this is an older version since this is what Support told me to install in order to get provider for Google calendar add on to work. Someone please help me to get past this point and on to restoring Thunderbird to health. Thank you

I hate Thunderbird since the new update. and don't know why they had to screw-up something that worked perfectly fine. Very frustrated!!! and don't know how to fix it without removing my account, saved passwords and all the other advice online. I never had a problem with Thunderbird and have used it for many years.

cannot seem to send emails to multiple people without going thru mail merge. I can no longer type the persons name in to: field and it will not autofill. I tried to go to calendar function and got a blank screen.

Can I go back to a previous version?

I always keep program icon in tray and when a new/unread email arrives, a separate yellow icon would pop up next to it... Well, after updating from 158 to 159, that new/unread icon is no longer popping up. Now I have to periodically click the main program icon to open Thunderbird and see that there's tons of new/unread mail sitting there, but that yellow tray icon never showed!

I would like to roll back to 158 but it is proving to be quite difficult.

When I launch Thunderbird via icon ( version 158), it always brings me to sign on page for Thundermail.. If Thundermail is by invitation only, how do I get back to the real TB page. I can access webmail, my account, and portal. I only see Version 156 in download folder and only have default-release and default in the profile. I have no clue then what is happening. Will bringing back an earlier version. "ABOUT" shows version 158 and nothing else.

Also, my android email & passwords have remained constant and I did not have to change anything.

I use a number of add-ons that greatly enhance Thunderbird but they keep breaking as new updates are released:

Cardbook is a very useful address book add-on, integrating with my Google address book. However a few months ago it stopped working when a Thunderbird update was automatically installed (I think it was V158). The only way of overcoming this was to revert back to the ESR (Extended Support Release). That wasn't compatible with the database that had been modified by the latest release. Fortunately I had a back-up copy of the previous database which I had to recover.

A couple of months ago a new release stopped Cardbook working. By trial and error I discovered that Cardbook had been updated for compatibility with the latest Thunderbird release so I was able to restore normal operation by updating to Thunderbird V158.

Now Thunderbird has updated to V159 and Cardbook has stopped working again. If I open Cardbook it shows the address book completely empty. The Add-on Manager doesn't flag any compatibility issues. This is disasterous for me as I am totally dependent on using Cardbook.

Lightning Calendar Tabs is another useful add-on, giving access to my Google Calendar through a icon in the task bar. However that has also stopped working under V159. The Add-on Manager shows it as being incompatible with V159.

So why does Mozilla keep releasing updates that stop add-ons from working?. Can I revert back to V158 and stop further updates?

Hi,Please assist Every time I open Thunderbird it shows Software Updater(user account Control) But the Sofware is already up to date & this has been happening for over a week

I have had messages about EWS support being ended from 1st October from the Beonex ExQuilla Add-On which I have been using for many years.

So I installed Beonex's new Owl Add-On which supports Microsoft Graph Protocol and migrated my Email accounts. However, this just renamed my existing account with "Old" at the end and created new ones which cannot connect!

The IT provider for the Email Domain will not allow the Owl Beonex App to connect, despite the ExQuilla one being used for many years!

They have now pointed out that Thunderbird natively supports the Microsoft Graph Protocol from Release 154. BUT I am on the ESR channel (as I need stable Email handling) and the latest ESR Release is 153.4.0esr!

So when will an ESR be released with Graph Support, as Microsoft could stop me being able to receive and send Emails any day as it is now past 1st October???? - Please let me know your timeline for the next ESR with Graph support A.S.A.P.

I do not want to install a non-ESR as I see that the latest Release 157.0.1 fixed a bug with the Graph protocol and 155.0 streamlined the manual account configuration. So I want stick with stable releases!

Also, do I have to add new accounts to use Microsoft Graph, or can I just change the configuration of my existing ones?

If the former, then I guess once I am happy I have all old Emails available (as I rely on Emails going back many years!), I can delete the original Accounts from Thunderbird, including the non-working " Old" ones created by the ExQuilla to Owl migration????

Thanks

Is there a way to revert back from a Thunderbird update? I have my inbox with current emails, but my folder organization on the left is disorganized and contents are missing and many folders are missing. It's destroyed YEARS of work!

Downloaded Thunderbird update and program now opens to Xfinity but no updated emails... Can I remove and re-install it without losing all my previous emails and contacts? Or is there any better fix?

• NOTE* It's Version 158.0...

I have no accounts, no old emails, nothing.

Version 153.4.0esr | Released September 30, 2026

Update History The following updates have been installed Thunderbird 153.4.Oesr (20260929234349) Installed on: October 5, 2026 at 6:23:30 AM Status: The Update was successfully installed Thunderbird 153.3. lesr (20260917204311) Installed on: September 18, 2026 at 3:24:29 PM Status: The Update was successfully installed

Old tower PC Edition Windows 10 Home Version 22H2 Installed on 11/12/2020 OS Build 19045.7725

Gateway Processor Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz 3.40 GHz Installed RAM 16.0 GB (15.8 GB usable) Storage 4 GB HDD ST4000NC001, 932 GB HDD ST1000DM003-9YN162, 1.82 TB HDD Hitachi HUA722020ALA331, 117 GB SSD SanDisk SDSSDP128G, 7.28 TB HDD ST8000DM004-2CX188 Graphics Card Intel(R) HD Graphics 4000 (96 MB) Device ID C6B6F480-ED70-4787-A153-1FD620BAFDA9 Product ID 00326-10000-00000-AA675 System Type 64-bit operating system, x64-based processor Pen and touch No pen or touch input is available for this display