Thunderbird under WIndows 11, no left vertical taskbar

Hi, Thunderbird : Under Windows 10 and Ubuntu, I have a vertical taskbar on the left. but once installed under Widows 11 no taskbar and no way to make it appear. Do… (les mer)

Hi, Thunderbird : Under Windows 10 and Ubuntu, I have a vertical taskbar on the left. but once installed under Widows 11 no taskbar and no way to make it appear. Do you know a solution? Thank you

Asked by Pascal in France 1 dag siden

Last reply by Pascal in France 5 minutter siden

Can't Address new messages

I've installed Thunderbird on new computer, and moved over from the old computer emails and Address Books (including customized ones). But when I start a new message, I … (les mer)

I've installed Thunderbird on new computer, and moved over from the old computer emails and Address Books (including customized ones). But when I start a new message, I can't get any e-addresses to appear in the To box.

What do I need to do to access Addresses?

Asked by jbaumann-msd 19 timer siden

Last reply by Yu5tiqX9og 17 minutter siden

Thunderbird suddenly not marking emails as read

Howdy! So this problem started today, and I can't find a solution or reason it is happening. The only variable is that I grabbed my address books from my old pc and tran… (les mer)

Howdy! So this problem started today, and I can't find a solution or reason it is happening. The only variable is that I grabbed my address books from my old pc and transferred them over to my new pc. I didn't change any settings, just put my address books on a thumbdrive and brought them over. I've been using my new pc for about a week now, and no issues until today.

Normally when I double click on an email, and it opens in a new window or tab, the status of the email in the email list automatically becomes "read", ie the little green dot becomes a little grey dot. For reasons beyond me, it has stopped working. The email stays in "not read" status, the green dot remains. It's driving me crazy, as only pc problems can. Anyone else having this issue? Oh, and yes I shut down and cold booted the pc and nothing changed. Thanks in advance!!

Asked by kilena 1 dag siden

Last reply by Yu5tiqX9og 12 minutter siden

Same Spam but different email address

Good day For years now I receive SPAM / phishing from "Standard Bank". Some days as many and 5 different emails in my inbox. Every time the same "From:" "Standard Bank" … (les mer)

Good day

For years now I receive SPAM / phishing from "Standard Bank". Some days as many and 5 different emails in my inbox. Every time the same "From:" "Standard Bank" but from a different email address. Today this one "Standard Bank <support@novonet.mk>".

Others like this this month: Standard Bank <admin@oco.cat>, Standard Bank <almir.colonhezi@acaoenge.com.br>; Standard Bank <anket@star-arastirma.com>; Standard Bank <info@matesonadate.com>; Standard Bank <info@mellys-nagelmanufaktur.de>; Standard Bank <mail@woodflooringstirling.co.uk>

My question, how can I stop this, please help.

Thank you a loyal supporter of Firefox and Thunderbird, Thank you keep up the good work. Pieter du Preez Western Australia

Asked by Pieter du Preez 22 minutter siden

Thunderbird Mobile HTML signature

I am having trouble setting up an email signature with HTML in Thunderbird mobile. I only have the option of a text signature. Is this the only option, or am I doing some… (les mer)

I am having trouble setting up an email signature with HTML in Thunderbird mobile. I only have the option of a text signature. Is this the only option, or am I doing something wrong?

Asked by Victor B. 4 timer siden

Last reply by George Kitsoukakis 44 minutter siden

  • Løst

Blocking list

Hello, I speak french therefore sorry for my english ! I have since 3 days, the impossibility to send a mail. I always receive an error message like this : L’e… (les mer)

Hello, I speak french therefore sorry for my english ! I have since 3 days, the impossibility to send a mail. I always receive an error message like this :

L’envoi du message a échoué. Une erreur est survenue lors de l’envoi de l’e-mail : erreur du serveur SMTP. Le serveur a répondu : bluewin.ch mailout-004.p.bluenet.ch Swisscom AG sc774: Blocklisting in effect.

This have been caused as I wanted to send a message to a list of more of 100 personn and the system of my provider (Swisscom Bluewin) blocked me.

I contacted them explained the situation and the have deleted the blocking list and if I go on the email of the provider Swisscom I am free to send message without problem.

BUT in Mozilla Thunderbird i am still blocked with the above mentioned error message !

I have controlled all my SMTP info and they are correct, I have try to disabled the Bitdefender security but no way it remains blocked.

My question is, is this blocking list only remaining in Mozilla Thunderbird and for how long time or someone can help me to cancel this blocking list in Mozilla Thunderbird ?

Many thanks in advance for your help

Clapas

Asked by clapas 4 dager siden

Answered by david 3 dager siden

How to handle Local Folders

Hello I am setting up a new Windows 10/11 Computer, with new virgin Thunderbird installation. My "old" TB mails on the "old" computer I would like to migrate to my new "L… (les mer)

Hello I am setting up a new Windows 10/11 Computer, with new virgin Thunderbird installation. My "old" TB mails on the "old" computer I would like to migrate to my new "Local Folder" and keep it for future reference (archived in read mode, but keep it accessible with the search function). How, and what do I have to move with the window explorer to the new W10/11 computer. I was reading up a lot but I am rather confused now. Thanks for helping

Asked by amey2 2 timer siden

Last reply by George Kitsoukakis 58 minutter siden

Unable to send emails

My cat laid too close to my keyboard (i.e., by the control, shift, and windows button) and I am now unable to send messages from any of my email address in Thunderbird. I… (les mer)

My cat laid too close to my keyboard (i.e., by the control, shift, and windows button) and I am now unable to send messages from any of my email address in Thunderbird. I've checked the server settings and they all appear to be correct, but I keep getting the error message that connecting to the smtp failed. I'm receiving emails, but can't send them. Is there anything else that I might be missing apart from checking the server settings.

Asked by juliesmith1 1 time siden

Use Thunderbird solely to access an MOBOX archive of my gmail account offline

I'm on Windows 11, I've archived my gmails to a 3GB zip and extracted it to a local MBOX file. I want to sue Thunderbird only to be able to conveniently see these emails.… (les mer)

I'm on Windows 11, I've archived my gmails to a 3GB zip and extracted it to a local MBOX file. I want to sue Thunderbird only to be able to conveniently see these emails. I don't want any accounts, nor to connect Thunderbird to the internet - I juust want to see the gmails.

I've installed Thunderbird, and the import/export Tools NG add-on. It won't let me import to a unified folder, so I deleted the unified folder. I have no "local folders", so I can't right click on one and select import. I can't see how to make one either, and the help is of no help.

I wonder if somebody could tell me, without assuming knowledge I don't have, how to do this please.

Thanks Chris

Asked by chrisxenon 1 time siden

Thunderbird calendar notifications don't always work as expected

Hi I am using thunderbird with the integrated events connected to various google domains. My calendar looks synchronized and notifications show up. I am on popos on a lap… (les mer)

Hi I am using thunderbird with the integrated events connected to various google domains. My calendar looks synchronized and notifications show up. I am on popos on a laptop. The thing is that a lot of time the notifications show up late; like not hours late, but let's say 5 minutes late and sometimes they don't re-appear after the initial reminder. So it's not 100% sure that you will get reminded or pinged at the right time. I have not figured out any specific rule when it works and when it won't. Curious if anyone else is running into such problems. Thanks Andreas

Asked by Andreas Richter 1 time siden

Thunderbird Extension API Returning Stale Cached Data for Gmail IMAP Folders

Dear Thunderbird Team, I am writing to report a critical issue with the Thunderbird Extension API where it returns stale, cached data instead of live folder contents for… (les mer)

Dear Thunderbird Team,

I am writing to report a critical issue with the Thunderbird Extension API where it returns stale, cached data instead of live folder contents for Gmail IMAP accounts.

Issue Description The browser.messages.list() and browser.messages.query() APIs are returning outdated message data from 2016-2021, completely ignoring the actual current contents of my Gmail IMAP inbox. While Thunderbird's UI displays current emails correctly, the extension API serves permanently cached old data.

Evidence of the Bug What Thunderbird UI Shows: Current inbox with emails from today and recent weeks

Real-time folder contents

Proper folder synchronization

What Extension API Returns: Only 100 messages total (artificial limit)

Messages exclusively from 2016-2021

No emails from 2022-2025 present

Completely ignores current folder contents

Technical Details: Profile: /Volumes/Data/Mail Files/Thunderbird/Profiles/aq8q4la7.default-release/

Account: Gmail IMAP (imap.googlemail.com)

Folder: account1://INBOX

API Used: browser.messages.list(folderId) and browser.messages.query()

Steps to Reproduce Set up Gmail IMAP account in Thunderbird

Write extension using browser.messages.list() API

Compare API results with actual folder contents

Observe API returns stale cached data from years ago

Debugging Attempted We have tried:

Deleting all .msf index files

Clearing folderCache.json and global-messages-db.sqlite

Removing cache folders (cache/, cache2/, startupCache/)

Rebuilding folder indexes

Using different API methods (messages.query vs messages.list)

None of these resolved the issue - the API continues to return the same stale dataset.

Impact This completely breaks any extension that needs to access current folder contents, such as email tracking, automation, or filtering extensions.

Request Please investigate why the Extension API serves different (and outdated) data compared to Thunderbird's main UI, and fix the API to return actual live folder contents.

Thank you for your attention to this critical issue.

Best regards, Hasan

Asked by hasan_sharif 1 time siden

Loss of Local Folders on upgrade to Windows !!

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show t… (les mer)

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show the folders. I did the same upgrade a month ago on a laptop (Windows 10 Pro to 11), no problems. I didn't externally back up the messages as I am a dinosaur and don't know how, but at least they are still on the hard drive. Thousands of them though so I need the local folders back. Tried all the fixes I can find on the Community Forum, without success. Can anyone help please? Bob

Asked by bob246 1 dag siden

Last reply by bob246 2 timer siden

Today Pane makes Thunderbird mail window Status bar disappear + can't scroll fully to the bottom

I noticed that I can't see the end of any longer email messages and realized that the Status bar is missing in the email window, too. Changing the relevant setting in the… (les mer)

I noticed that I can't see the end of any longer email messages and realized that the Status bar is missing in the email window, too. Changing the relevant setting in the menu didn't do anything. The Status bar is visible in other tabs. When I hid the Today Pane (Events & Tasks), the status bar came back. When I displayed it, Status bar disappeared again. With longer email messages, it is impossible to view the complete message, because the message window seems to extend below the screen bottom. Hiding Windows task bar doesn't help.

Help, how can I have my status bar and read the messages without opening them in a new window, without having to hide the Today pane?

Asked by haituva 3 timer siden

Last reply by haituva 2 timer siden

Thunderbird very slow to send emails

Hi I was using TB 142 without problems. When upgrading to 143 ou 144.B4 I have problems sending mails to all users after some times. Usually the first mails are sent imme… (les mer)

Hi I was using TB 142 without problems. When upgrading to 143 ou 144.B4 I have problems sending mails to all users after some times. Usually the first mails are sent immediatly but after around 10 mails, I have very slow response (varies from 5 sec to more than 1 minute and sometimes timeout). Usually quitting TB solves the problem but this is very annoying. I went back to 140LTS and sems to have no longer this problem. This was tested on many diffrent networks. I am running under Fedora release 42

Thanks

Asked by mouthuy 4 timer siden

Submenus not displayed

Hi I use a PC running Windows 10. I created a new email adress using Outlook. All is displayed correctly in Outlook.live (subir inbox, outbox, draft, archive, etc) Now w… (les mer)

Hi I use a PC running Windows 10. I created a new email adress using Outlook. All is displayed correctly in Outlook.live (subir inbox, outbox, draft, archive, etc)

Now when I try to add the same account (email adress) in Thunderbird PC (last release), the system found well my data (IMAP, SMTP...), but is unable to display submenus. Only the Inbox appears. The setup is not complete and I have no error. But in Thunderbird I received a notification stating something about the authentication of that new email adress but I have no access to the full notification (when I clic on the notification it disappears).

I deleted this account (data and message) in Thunderbird, closed Thunderbird, and created it again, same result. Only the subdir inbox appears.

In Outlook.live this account works fine, I can send and receive emails.

In Thunderbird I can also send emails but I do not receive them while they are received in Outlook.live. So it seems that there an issue in Thunderbird And I have no opportunity to add the account manually.

Any suggestion to solve this issue ?

Asked by luxorion 1 dag siden

Last reply by luxorion 4 timer siden

cannot get into thunderbird directly without going thru Webmail

My Spectrum password was changed and now I cannot get direct access to TB. For some reason TB is not linking up with Spectrum password. I get a popup panel saying "Login … (les mer)

My Spectrum password was changed and now I cannot get direct access to TB. For some reason TB is not linking up with Spectrum password. I get a popup panel saying "Login to server Mail.TWC.Com with username jomar159@hvc.rr.com failed" Retry Enter New password Cancel I have 2 accounts on TB 1 is wmarks1 and the other is jomar159@hvc.rr.com HELP

Asked by wmarks1 16 timer siden

Last reply by Ed 4 timer siden