Thunderbird Community Forum

I tried transferring TB to new computer, nothing has worked. w11 TB148. Manually didn't work, tried coping from Troubleshooting Information/profiles. I don't know why there are 2 TB's? Under local and roaming but I tried. The video is out of date. It's a new install of TB so it opens with create account, both computers W11 and TG148! Please somebody tell me what I'm doing wrong? Thanks.

Today 2/25/26 when I signed into TB, it made me authorize each email address with Yahoo..before doing so I googled and it said this was because the authorization needed to be renewed..soooo i did so for my several Yahoo-Cox accounts but now a folder that was on one account appears under another and all the email going to that account are being also sent to the other..I have checked to make sure in the tools and settings there are no forwarding indicated..any suggestions?

DEUTSCH (English see below):

Hallo zudammen,

Konfiguration: - Window11 25H2 (aktuell) - Thunderbird Beta-6 (BuildID=20260213180051) - gpg2.5.17 (Gpg4Win 5.0.1); siehe auch: <https://www.gpg4win.de/>

Der bisherige und standarmärige Installationspfad von "Gpg4Win": "C:\Progam Diles (x86)\Gpg4Win\" wurde softwareseitig auf: "C:\Progam Diles\Gpg4Win\" geändert!

Bug 1967121 (Closed) => thunderbird148 --- fixed! <https://bugzilla.mozilla.org/show_bug.cgi?id=1967121>

Zur Zeit verfolge ich die Änderungen bezüglich der externen Schlüsselverwaltung in Thunderbird-Beta, da das Arbeiten mit externen Schlüsseln in der esr- und in der relesease-Version von Thunderbird seit der offiziellen Herausgabe von gpg2.5.x absolut nicht mehr möglich ist! Die geheimen Schlüssel für das Entschlüsseln und Signieren werden mit gpg2.5.x nicht mehr gefunden!

In der Schlüsselverwaltung von TB-Beta befinden sich meine öffentlichen Schlüssel und alle öffentlichen Schlüssel meiner Kommunikationspartner. Extern sind meine geheimen Schlüssel gelagert. Folgende Präferenz wurde aufgrund von gpg2.5.x hinzugefügt:

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2026-02-25-14-35-46-df59be.png

Allerdings erscheint nach all diesen Maßnahmen die Fehlermeldung: "The secret key that's required to decrypt this message is not availlable."

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2026-02-25-14-36-58-d8280e.png

Mit Herausgabe von Thunderbird/148.0 (release) sind dort die gleichen Probleme mit der externen Schlüsselverwaltung zu bepbachten!

Mit Versionen gpg < 2.5 funktioniert unter Windows alles problemlos!

UNTER LINUX haben hier Änderungen an der Präferenz: "mail.openpgp.load_untested_gpgme_version" nachweislich keinerlei Auswirkungen!

Was übersehe ich?

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ENGLISH:

Hello,

Configuration: - Window11 25H2 (current status) - Thunderbird Beta-6 (BuildID=20260213180051) - gpg2.5.17 (Gpg4Win 5.0.1); see also: <https://www.gpg4win.de/>

The previous and default installation path of "Gpg4Win": "C:\Program Files (x86)\Gpg4Win\" has been changed by the software to: "C:\Program Files\Gpg4Win\"!

Bug 1967121 (Closed) => thunderbird148 --- fixed! <https://bugzilla.mozilla.org/show_bug.cgi?id=1967121>

At the moment, I’m following the changes regarding external key management in Thunderbird Beta, because working with external keys in the ESR and release versions of Thunderbird has become absolutely impossible since the official release of gpg 2.5.x! The secret keys required for decryption and signing are no longer found when using gpg 2.5.x!

In Thunderbird Beta’s key manager, my public keys and all public keys of my communication partners are present. My secret keys are stored externally. The following preference was added because of gpg 2.5.x:

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2026-02-25-14-35-46-df59be.png

However, even after all these measures, the following error message appears: **"The secret key that's required to decrypt this message is not available."**

https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2026-02-25-14-36-58-d8280e.png

With the release of Thunderbird 148.0 (release), the same problems with external key management can be observed there as well!

With gpg versions **older than 2.5**, everything works flawlessly under Windows!

• • UNDER LINUX**, changes to the preference

"mail.openpgp.load_untested_gpgme_version" have demonstrably no effect at all!

What am I missing?

I want to create an email contact that will send to two separate addresses every time I am on v 148.0, I see the instructions for adding a mailing list but the instructions found so far do not appear valid for this version. File>New>Mailing List

I am using a condav address book, perhaps this where the problem originates

Can I create the contact in the condav book directly and have it show up and work in TBird?

I have created a mailing list in the "collected addresses" address book as a workaround

Will try the direct entry to condav to test that method

Computer PC-A died. Had access to data

Recovered PC-A:CalA: ... users .... roaming ... <profilename> calfiles

Installed TBird on another machine (PC-B) Copied the three sqlite files from backup to same location on that other machine. Deleted WAL file. Restarted. CalA does not appear' on PC-B.

is the <ProfileName> in the sqlite files?

What to do?

Just a couple hours ago I tried to attach a photo from my Samsung phone. I was successful doing so earlier today. Now I get this message and have no idea what to do? "C:\Users\Owner\Desktop\Jack.jpg could not be opened, because the associated helper application does not exist. Change the association in your preferences." Can you help?

How to fix the problem, is with my Skymesh.com.au This has been happening yesterday & today, My thoughts are Microsoft has done something Help please embreys@protonmail.com is another account my normal is embreys@skymesh.com.au but the mail comes 48hrs later.

Good afternoon.

When I receive emails such as password resets, or email verifications, etc., they always contain a line such as "click the link to verify your email", and they never display correctly like they do in other email programs, and I have to literally copy and paste the link in a web browser manually.

Is there a setting somewhere that I am missing?

Can not send emails to a newly created outlook.com (free) account. Have tried dozens of different settings, approaches.

My current setup:

 - windows 10
 - thunderbird 140.8.0esr (64-bit),  numerous previous versions also do not work
 - outlook.com (free) account mail provider
 - POP3 enabled (tried IMAP enabling also) on outlook.com account
 - no 2FA or 2FA enabled on outlook.com account, no difference
 - outlook.com web access works fine
 - followed instructions in mozilla support article Microsoft OAuth Authentication and Thunderbird in 2024 
      (https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202)
 - have done a fresh install on a new machine without an existing profile.
 - have tried various microsoft servers, have tried oauth2, normal password
 - thunderbird account creation works just fine.
 - server settings and SMTP settings match as recommended by support article noted above
    SMTP server settings
        server name: smtp-mail.outlook.com  
        port: 587
        connection: STARTTLS
        authentication: OAUTH2
        user:  xxxxxxxx@outlook.com

symptoms:

 - receiving(downloading) emails works fine.
 - sending emails fails with following messages
     Login to server smtp-mail.outlook.com with username  xxxxxx@outlook.com    failed    followed by 
           Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 
             'Authentication method' in 'Account Settings | Outgoing server (SMTP)'

Many people seem to be having this issue with no resolution.

Please help.

Hi

When Thunderbird is started maximized it overlap taskbar if is set to hide and taskbar won't show until Thunderbird is minimized and maximized. Another way is to press the Win key two times. Then the hided taskbar can be shown/use. The same thing happens to Firefox. Only when is first started. Then if Firefox is minimized and maximized, press Win key two times, press F11 two times then the hided taskbar show/hide normal.

It is a setting that can be changed to start Thunderbird and Firefox in full screen and do not overlap hided taskbar?

I can receive mail fine. Cannot send mail on gmx.co.uk acct, but gmx.net works on oauth2. But oauth2 is missing on gmx.co.uk It's just not on the pulldown. I tried a new thunderbird acct for gmx.co.uk but oauth2 is still missing.

Continuation of my prior post: https://support.mozilla.org/en-US/questions/1516342

Thunderbird has a routine problem with being unable to log into various mail servers. I have four accounts and they all seem to share this problem.

Most recent update: I've tested this in Windows Safe Mode, and the problem has not appeared. Since I can't do any useful work in Safe Mode, it's hard to give it a thorough test, but so far so good. Also, I have removed AVG antivirus because it was redundant. I have seen no improvement since it was removed.

Can this problem be resolved?

I'm finding that folders under my email heading are missing, until I find them completely out of alphabetical order. Then I move them to where they belong, and a day later they are somewhere else. How to correct this?

I opened Thunderbird this morning and my Drafts folder is empty. Not only that but when I am composing an email and hit Save, which is setup to save to Drafts folder, I get a little popup that says Copying message to drafts folder. I open Drafts folder and it is not there. However, this new message that I tried to safe to Drafts shows up in a folder named All Mail. I try to drag it to Drafts but it does not copy or move to Drafts. I created a new folder and named it Drafts 2 then copied this test message to Drafts 2. But where are my original Drafts folder contents> I have changed absolutely nothing in Thunderbird. No settings changes, no nothing. What the heck? I had important things in my Drafts folder and now they are gone.

Oh, this happens on my Primary Gmail account. I open Gmail in my browser, check Drafts and it's empty too.

I check my ISP furnished POP3 account and it has a message in Drafts. I create a new message, save it to drafts in this POP3 account and Thunderbird147 puts it there.

My 140 version of Thunderbird froze and I removed it and downloaded 140 afresh but it will not run. I just get a white screen and the settings button will not respond.

I have spent most of two days trying to Thunderbird to send email. It has worked perfectly for years. Suddenly, emails end up in Sent folder but go nowhere. My email host service sees nothing wrong. I can send emails through webmail and usually through Outlook. I have spent most of the day getting coached by Copilot and I am quite sure I have all the settings the way that worked flawlessly until two weeks ago. Is Thunderbird just dead and I need to go to Outlook?

Using latest thunderbird on desktop, if I create account, thunderbird pops up a window but the window greys out and never gives me a way to input password. There’s a url at the top but it never goes

I don't receive email on my computer in MX. I did for 2 months. Now it's stopped. I tried to change to "No Proxy" as AI advised, but that doesn't register/the computer button remains white.

Using TB 147.0.2 on Windows 11. Installation went very smoothly, including importing all my IMAP, Gmail, and iCloud accounts. Kudos!

However, my iCloud account has four calendars (personal, shared, travel, work) and TB only sees two of the four. I can't pinpoint any reason why. There's nothing special about the two it sees or the two it doesn't, as far as I can tell.

Any hints? Suggestions? Ridicule?