Thunderbird Community Forum

I recently lost all of my saved emails and the folders they are in on my laptop computer. They are fine on my desktop computer. I have tried everything to restore them to my laptop computer. (backup option, export profiles, etc) But when I try to restore them to my laptop nothing works and they are not restored to it. I have tried every option that I used to save them but they will not restore. P.S I have tried every option on Google searches with no luck. I am running Windows 11. As a side note I never had a single problem when I was using Windows 10 and Moz Backup still worked. Help Richard Clauser [redacted from public] @gmail.com

I set up thunderbird exactly the same as on my old computer -- i cannot retrieve my emails on the new computer even though the test connection was successful - but i get a pop-up saying autentication failed when i try to get my emails on my new computer, Old computer still gets them

I open Thunderbird and click on get messages and emails are not coming into Thunderbird from AT&T. It worked perfectly yesterday but today we are encountering this issue. There was no changes to the application since yesterday. Thunderbird is online I clicked the icon at the bottom it shows when it is offline. I contacted AT&T and they said things were working on their side. What are possible things I can do to fix this issue

Thunderbird Mail Accounts Not Imported from 5 GB Backup

Hi everyone,

I’m trying to restore my Thunderbird setup from a 5 GB backup/export file.

Thunderbird already recommended that I manually extract the backup file and then import the extracted folder. I followed these instructions, but after importing the folder, none of my mail accounts are restored.

The backup file is about 5 GB in size, so I assume the data is there, but Thunderbird does not recognize or restore the email accounts.

Has anyone experienced this issue? How can I properly restore the mail accounts and their emails from this backup?

Any help would be greatly appreciated. Thanks!

I have three separate Yahoo email accounts. I set up Thunderbird to link to each Yahoo email account separately. It worked fine for a year or more. On 5/25/26 one of the three Thunderbird email accounts stopped downloading emails from Yahoo. I could see at the bottom bar Thunderbird indicating that is was downloading 1 of XX emails, but never actually downloads them. There is no error message. I checked the Yahoo email account to verify the number of emails I am missing from Thunderbird and the number is correct. I can see the emails in Yahoo. I'm the only person using Thunderbird, so no changes have been made to previous settings for retrieval. I confirmed Security and server settings for Thunderbird in and out going emails, and Yahoo are correct. I tested the connection in Thunderbird, and the connection is successful. I tried to send an email from the Thunderbird account having issues, and the email was sent and received by the recipient. The recipient replied, and Yahoo received the email, but failed to download it to Thunderbird...along with all the other emails since 5/25/26. I unlinked the account and reestablished the link between Yahoo and Thunderbird, and still not fixed. I tried restarting the computer, with no change. I tried to send an email from Thunderbird to one of the other Thunderbird emails and it was sent and received. I made changes to Thunderbird to force the download of emails, and it still wouldn't do it. I turned off my antivirus, closed Thunderbird, and restarted it, and that didn't change anything. The capacity of emails on the email in question only has 739 emails, so it's not over the limit and I have plenty of storage capacity. Thunderbird is set to save emails, Cookies and cache were cleared, no change. I ran the folder repair feature in Thunderbird, but there was no change. I compared all the settings between the other Thunderbird emails that are working against the one that isn't, and they are all the same. There was a suggestion to close out of Thunderbird and delete the "Global-message-db.sqite" file from the Thunderbird profile in case it was corrupted, and it would recreate this file when Thunderbird was restarted. The file was recreated, but it didn't fix the problem. There was mention that a suspicious email in Yahoo might be blocked by Thunderbird, so I placed various emails in the spam folder, and it didn't work. I did find one email in the Yahoo spam folder that was dated before 5/25/26 and moved it to the Yahoo inbox. Lo and behold, that one email downloaded to Thunderbird. So there is something within Thunderbird preventing emails from downloading after 5/25/26. I've read many people complain about similar download failures with no solid fix. Someone mentioned it fixed itself on a day, but then stopped again days later. Someone else mentioned Yahoo changed its password protocol to transfer emails, but that doesn't make sense since the other two are still downloading based on the "old" password protocol. I'm at wits' end. Thanks for reading all of this. I hope someone has a solution.

I create a new address book in Thunderbird. I add several email addresses to that book. I close Thunderbird at the end of the day. When I open Thunderbird the next day, the new address book has disappeared. Any idea what I am doing wrong, missing?

I received an email and when I responded to that I need to attach a document. I was unable to attach it. I went to another email and it also would not attach any document???

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!

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

After first pressing "Mark" (K), the shortcut keys for "Mark as Junk" (S) and "Star" (S) are the same. Previously, the shortcut key for "Mark as Junk" was (J). Please make the necessary corrections.

最初に「マークを付ける」（K)を押してから、「迷惑マークを付ける」（S）と「スターを付ける」（S)のショートカットキーが同じです。 以前は迷惑マークのショートカットキーは（J)でした。

修正願います。

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.

When writing an email and i try to press attach button, nothing happens and i cant attach file that way. Drag and drop works. This came after updating thunderbird to latest versio 157, earlier attach button worked fine. Any solutions to this problem?

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.

As of the latest update, the attachment toolbar button in a new mail window does....nothing. Nada. Click it, nothing. I have to drag the attachments from (say) Desktop to the new message window. Works, but...so should the toolbar buttons, which used to.

Tried turning off all addons (i.e., troubleshooting mode) - made no difference.

I have also the small and simple problem of this old question: https://support.mozilla.org/en-US/questions/1419582 if there is a solution or a workaround for ordering the addresses it qould be nice regards Domenico

Hello,

I am having a problem with Thunderbird on Windows when connecting my Gmail/Google Workspace account through IMAP.

The Google account authentication completes successfully and Thunderbird appears to connect to the account, but no email messages are displayed in the Inbox.

Here is what I have checked so far:

I am using Thunderbird on Windows. The email account is a Gmail/Google Workspace account. The account has been added to Thunderbird successfully. I signed in through Google's normal authentication/OAuth process. The account shows as connected in Thunderbird. IMAP is enabled and working on the Gmail side. Gmail webmail works normally and all my emails are visible there. Thunderbird displays the account and its folders. However, the Inbox contains no messages at all. I have checked the Subscribe section, but it does not show additional folders that I can subscribe to. I have already removed and re-added the account. I have also completely uninstalled and reinstalled Thunderbird and signed in again. The same problem remains after the fresh installation. The problem is therefore not simply that the account cannot authenticate; Thunderbird appears to connect, but it is not downloading/displaying the messages.

I would like to understand what could be preventing Thunderbird from synchronizing the Gmail IMAP mailbox.

Could this be related to:

Thunderbird's IMAP synchronization/cache, the Gmail IMAP folder/root settings, the Thunderbird profile, an IMAP subscription issue, OAuth2 authentication, Gmail's IMAP labels/folder mapping, or a corrupted Thunderbird preference/profile setting?

I would appreciate detailed troubleshooting steps to determine why Thunderbird can connect to the Gmail account but does not populate the Inbox with messages.

I can provide screenshots of the Account Settings, Server Settings, Synchronization & Storage, Gmail IMAP settings, or Thunderbird error/connection logs if required.

Thank you.

Hello, I am hoping someone can kindly help me. In the process of copying folders from POP to IMAP in order to make my account accessible on my new Andriod IPad, my sub folders disappeared the next the day on my POP account. I had not yet started to copy sub folders to IMap. I cannot find them in the Trash and I fear I may have deleted anyway. Is there anyway I can find these missing folders? I am sure I did not delete anything except maybe Trash emails. Thank you for any help Martyn