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I can;t finish installing Thunderbird mail on my computer. After xing out of the donation page it tells me to finish installing, how??? There is nothing to click on.

I just installed Thunderbird on a new computer. I hadn't used Thunderbird in some time. I can't seem to add ANY remote address books. There is an option to add an address book account. When I click on it, I get a dialogue box which lists several options which get highlighted whenever I mouse over then, however, when I click on ANY of the options, nothing happens.

How, then, can I add a CardDav address book to this?

I have several cards in my address book that have two email addresses on the card. When using Thunderbird and selecting the card does Thunderbird send the email to BOTH addresses? I'm a long time user of both Firefox and Thunderbird. John Feagin Birmingham, AL jfeagin@charter.net

I asked about this in the past but have got nowhere. I haven't been able to use my Thunderbird account since Last November. I keep getting the message "Connection to server imap.iowtelecom.net timed out" I can get emails through the providers email but can't get them through Thunderbird. I have used Thunderbird for many many years. I can't figure out how to correct the issue. Wondering if I should try setting up a completely new email address with it but have had the old one for many years. Any help is appreciated. thanks!

On one of my email accounts when I start a new email message the page fills with this - -- PK?????!?A�.f?T????[Content_Types].xml �??(�?���n�0?E���?�� �tQUUH?},�HM?��?��/����;@��(?�I6H0s�=?xF��V� |���d� H?�[!M����[�H�?�?LY?9�B ����h�u??T���E����?�YȬ?���z�"���:�X �~0x�ܚ?&��� ��??l�b��� ɷ��$�Mc��?�+��@�j<�p�a�)�Y�:]?q@��2T�=a!]�Æ����?��}���R@2e>�3�]tm����Fev��?�- ɡ�Wn�[?!�w�*k+�I����?q� \���폇?Qp ��s/�?�W��c�?R`��?\?��xj��?��mNEb��[?p?���?��:Ł?�(O�um"Z�=?T�@�8�M�8�?��?PK?????!?�?��N????_rels/.rels �??(�?���j�0?@���ѽQ��?�N/c��?�??[IL?��j���<��?]�aG��ӓ�zs�Fu��]�?�U �� ��^�[��x����1x�p�?���f��#I)ʃ�Y?��??������?�*D��?i")��c$���qU���~3��1��jH[{?�=E��?��?~

Windows 11 64bit. I have Outlook and Gmail accounts. About 6 months ago the Outlook accounts stopped sending messages. Ok, I can live with that as I only use them sparingly. I tried lots of tweaks from this forum but none worked. I am not technically minded so I may have interpereted the wrongly. After the last update 9/10 July 25, the Outlook accounts fail to open. Says something about cookies not enabled on browser. I added the logins to the exceptions but no change. The cookies show on the list as on the PC. So I can't use Outlook anymore. Gmail. Now I can't send any messages from Gmail accounts. Just waits ages and says try again. The email I was replying to disappeared from my inbox when I logged through Google Gmail account. It shows on Thunderbird. I also tried to set up a new Gmail account on Thunderbird, would let me. So now, Thunderbird is useless to me. Shame, I liked it and even donated. How could something go from good to useless in one update?

Hi =)

When I click "Write" and compose an email, the text I type is very, very small. I have tried all the settings in the font settings, etc. I can choose a larger font, but then the text becomes very large for the recipient as well. It can't be correct that the text should be so small, it is hard to read it, that small is it. This happened after reinstalling the new version of Thunderbird this evening. When the email is sent it is ok size. See enclosed pictures:

1) When writing -> Too small 2) In the inbox -> Ok size 3) Email is opened -> Ok size

I really hope someone can help! =)

Best regards, Margrethe

(This is embarrassing.)

The first screenshot shows how I've been viewing messages.

Today I tried some of the View option.

Now I have what shows in the second screenshot.

I've tried every View combination, but I can't get back to the way I had it! 😣

Would appreciate some help, please.

After installing Windows11, I receive a pop-up of my email on my screen and a ding sound when a new message comes in. I meet with clients and often share my screen. It is very distracting. I want to turn both off. How do I stop it?

Hi, Is it possible to change the Thunderbird folder pane (folderTree) appearance to look like the Thunderbird 102 style shown in your screenshot (smaller, more compact, and using simpler icons). Like imge below this

I using thunderbird version 115.10.1 and i try use CustomCSSforTb but it only change icon and colors. I cant change the tree folder style.

Hi grateful for any help with this please,

When I set the copies and folders setting to place a copy of all sent messages to my email address (IMAP server as i undersand it) it looks fine, but when I actaully send a message andthen look back at the setting it has changed to 'local folders' so the copy is only on the local laptop not accesible elswhere.

This isn't a problem wih an old version of Thunderbird: 102.13.1 (on an old laptop) but on 140.0.1 on a newer machine the problem is there...

Thanks John

recent pop-up when signing in to my mail acct. "sign in with google...sign in to continue to Mozilla thunderbird email" allows me to continue if i ignore it, but keeps coming back. also pops up if i attempt to add a task to calendar. suggestions? thank you

Hi, at the top of the picture are 6 emails. Towards the bottom, highlighted in blue, is another email, RPAiken4@gmail. How can I get that one to be in the group of 6? TYIA

I am on W11 home. Tbird user for maybe 10 years. Just updated to 140.0.1. The New Message button does not respond to anything -- left, right mouse, alt control shift buttons. zip.

Since the Sequoia install on my Mac I have had many issues. Most of them involve getting logged in to sites I use frequently. Yesterday and today I was unable to load the most recent firefox update and then the most recent thunderbird update. The wheel keeps spinning but nothing actually happens.

I have followed the instructions provided here: https://support.mozilla.org/tn/questions/1397110

1. Keep settings in Settings>Composition at default (medium) 2. In Settings>General>Fonts & Colors>Advanced, change Latin Proportional and Monospace to 22 3. In Settings>General>Fonts & Colors>Advanced, change Other Writing Systems Proportional and Monospace to 22

The fonts in my messages are still tiny. What is the 2025 solution please?

Thank you!

[I am starting a new post because I was replying to someone else's post and it stopped working.]

After updating to TB v.140.0esr (then just now updating to v.140.0.1esr) from v.128esr, I cannot compose a new message in any Local Folders or my main virtual inbox. The +New Message button is there, but clicking it does nothing. It was working for over a decade before this.

However, going into the normal account folder inboxes DOES allow me to click the "+New Message" button and start/compose a new message.

I can still reply to messages in the local and virtual folders, just not start a new message.

I have tried disabling all security software. No luck.

I have ran Help > Troubleshoot mode with no addons. No luck.

When I create a new folder under Local Folders, clicking New Message still does nothing while in that new folder. But if I move that new folder to an existing email account, then go to the new folder, clicking New Message works correctly.

I am on Windows 10. I did use the addon Manually Sort Folders in the past, but not recently.

I ran the Check Error Console (ctrl+shift+J) on TB v.140.0esr. Here is the paste:

1752107893534 addons.xpi WARN Checking C:\Program Files\Mozilla Thunderbird\distribution\extensions for addons This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. background.html WebExtensions: Import modules with new 'ChromeUtils.importESModule' implementation.js:34 Hello there, I'm BorderColors-D! background.js:11:9 CopySent2Current: 3.39 on Thunderbird 140.0 Received: pong

1.0.9 background.js:141:33 no migration CardBookXULNotifyListener.js:600:13 TypeError: can't access property "document", currentWindow is null implementation.js:568:15 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing locales: An unexpected property was found in the WebExtension manifest. 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing chrome_injectors: An unexpected property was found in the WebExtension manifest. New compose tab 5 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 5 styleswitcher.js:45:13 New compose tab 6 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 6

After updating to Thunderbird version 140.0esr, I am unable to create a new email. Clicking “Write” or “New Mail” does nothing – no compose window opens. However: • Receiving and replying to emails works normally • Safe Mode does not resolve the issue • Disabling all add-ons has no effect • Reinstalling Thunderbird did not help • I confirmed I am using version 140.0esr

Hi I have a company email account with a large amount of emails accessible from several computers. I created a local folder in Thunderbird on my NAS drive and directed the locations to it on my computers. I have emails sorted by year, as well as received and sent. When I open the program, I can see the email subject, recipient, and date. However, I can't open any of the messages; both the quick preview and the separate window show a white background. What's the problem?