Thunderbird Community Forum

Previous Colors add-on is apparently not him compatible with the most recent version of Thunderbird which installed itself in the last few days.

Does anyone know if it updates to that plug-in is anticipated?

If not, are there any similar add-ons available?

Thanks! Bill

I accidentally moved a Google calendar notification to the spam folder 1 time and now I can't get TB to stop putting them in there. I reset the training data and created a message filter to catch them but they still automatically go into my spam folder. How do I get these messages to go to my inbox instead of spam?

I changed my email password on the providers web site, my phone, tablet both asked for the new password but Thunderbird has not, why can I still send and receive email ?

And don't see a place to change the server password either, I thought it would just ask.

Hello,

Everything working just fine last night. Wake up and Thunderbird will not retrieve emails.

Remembered this old message I got so I went through and deleted my second email address, didn't help.

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

Checked all settings compared to Yahoo, still won't download messages. I can even send a message with my current settings no problem, and it does login, just won't retrieve emails. Gives me a connection timeout.

Anyone have any ideas?

I have relied heavily on the "Open message in conversation" function, because it gave me a tree of messages across all folders (Inbox, Sent, etc.) that was based on the person I was corresponding with.

Now, the function is giving me a tree based on the Subject of the message. This behavior makes it useless to me. I've looked, and I can't find any configuration setting that would control this option.

How can I once again get a message tree based on the correspondent's name, then sorted next by date?

Thanks!

Over the last week or so, selecting a link embedded within an incoming email on Thunderbird does not now ensure that the desired webpage will be opened in Safari and other browsers. Shutting down Thunderbird, intermittently enables the proper functional activity of opening the desired webpage. I've discussed this with Apple (iMac; Sequoia 15.7.5) and was unable to identify this as an Apple problem.

My email storage server has a limited space allocation. Because I keep most emails for future reference/recall, I have been moving important emails to specific folders I have created in LOCAL FOLDERS. The LOCAL FOLDERS resides in a local drive in my main desktop computer.

Lately I switched from POP to IMAP so I will be able to access my emails on my phone, remote desktop at home & on my notebook when I travel.

Because of limited storage space allocation, only the main basic folders (inbox, drafts, sent, junk, trash, etc........) reside on the server & appear on all my connected devices (phone, remote desktop & notebook).

When I am on the main work desktop, everything works flawlessly. I have access to whatever information I need. However, when I am on the other devices, all I see are the basic folders that reside on the server.

Could you suggest a creative way I could take the LOCAL FOLDERS along with me when I am outside the office? I was thinking of mounting the LOCAL FOLDER in the cloud, if that is possible. I will be the only one accessing it (single user) so colliding versions should not be an issue. I was thinking of copying the files on to an external drive then restoring to whichever device I use but the problem with this workaround is syncing back to the main machine.....a lot of extra work & steps.

Any suggestions? Hope to hear from someone soon. Thank you.

Je n'arrive plus à me connecter, voici le message d'erreur "Échec de la connexion depuis le serveur imap.sfr.fr avec le nom d’utilisateur beaudonnat.jean-luc@neuf.fr. Pouvez-vous me dire ce qu'il faut faire pour me connecter. A savoir j'ai changé mon mot de passe mais celui-ci ne me permet toujours pas d'accéder à mes mails.

Opening a link in email with control key now switches to browser (Firefox). Previously, pressing the control key when opening a link did not switch to browser. This is handy for opening multiple links in an email without switching to browser each time. Is there a setting somewhere to restore the previous behavior?

Hi, as of 14/4/26 my K9 (Samsung mobile) and Thunderbird (Mac Pro) no longer works with my bt internet account. Cannot receive or send emails. Have checked both in and outgoing server settings and all agree with bts advised settings. When I attempt to fetch in K9 I get error “network error readstringuntil():end of stream reached. Read:””while waiting for’’. When I attempt to send get message “unknown error unexpected end of stream. Contacted BT and they told me all my settings were good. I suspect something has changed at the BT server end. They did say they had relocated?? Any one else suffering this?

Hi there! I cannot get Thunderbird to work with the SMTP-server of my new Outlook account. I checked and double-checked the server specifications, the password, tried OAuth2 as well as login with password. I checked that SMTP is activated in my Outlook settings. Checked Thunderbird and my MacOS for updates as well, of course. I even created a new profile in Thunderbird. The result is still always: "authentification failed". Can someone help? Thanx...

When I receive an email that includes a live link it does not work when I click on it. Instead I get a popup error message that says "Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."

I can sometime manage to copy the link address and paste it into a browser but this is not always successful.

Using Thunderbird b150, but have tried -esr and regular TB. New install of Win11 26200.8037. Up to date Firefox. Have been trying for a week for Thunderbird to authenticate my Outlook account. Worked with Copilot. Finally found a TB setting, network.proxy.allow_hijacking_localhost, that was set to FALSE. Set it to TRUE and Outlook account authenticated. Able to finally send mail. This was last night. This morning: Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.office365.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. No changed to any programs. Have deleted Outlook saved password. Thunderbird NEVER offers to get password/authenticate. I am truly and sincerely frustrated.

If someone can help me, would sincerely appreciate.

IMAP accounts, every time I open Thunderbird it has to authenticate and down load all my email; why isn't my all my current email available? And yes in settings I have "Keep messages in all folders for this account on this computer" checked. And yes in "Advanced" settings all folders are checked.

When attempting to set up an e-mail account for Zoho e-mail I get an authentication error. It says: "Unable to log in. Probably wrong configuration, username of password." I disabled Account Hub, tried again, but this did not solve the problem, and I get the same authentication error. I tried several other things, using manual configuration, copying instructions from the Zoho website, but none of them worked. They all ended with the error message, "Thunderbird failed to find the settings for your email account." The server and port settings are correct. The username and password are correct. What is the problem?

Hello everyone

It's been for a few days since somehow it became unable to send mail. The error message is "The message could not be sent because we were unable to connect to the outgoing (SMTP) server smtp.gmail.com. The server may be unavailable, or the SMTP connection may have been rejected. Please verify that your outgoing (SMTP) server settings are correct and try again. Problem is I cannot see any mistake in my smtp setting. Some help much appreciated. Thank you.

Taka Jimbo

Thunderbird installed a new version and would not open until I created a new profile. Now all my locally saved email is missing. The only profile I can find is the new one for my email account, dated April 2026. Where is the old profile with all my saved emails? I have no email older than April 2026 in my Inbox. POP3 email, saved to my desktop computer, is gone. Please help me find them.