I-Thunderbird Community Forum

Since the last update to version 146.00, under the folder Archives, both the sub folders for 2024 and 2025 have changed to Drafts and I cannot change them back to show the year folder (2024 & 2025). None of my other yearly Archived sub-folders are affected from 2016 - 2023.

Under Properties, both show their respective year correctly - i.e. imap://wbriggs1%40sky.com@imap.mail.yahoo.com/Archive/2024 and; imap://wbriggs1%40sky.com@imap.mail.yahoo.com/Archive/2025

I attach screenshots showing the issue and any help would be appreciated.

I want to install Thunderbird on my new computer (Windows 11) from my old (Windows 10). But I cannot open the downloaded version of Thunderbird - it keeps saying there is no profile. Of course there is no profile before I have installed it! I de-installed and re-installed the Thunderbird program, but it keeps saying the same thing. How can I open Thunderbird to install the profile?

I have resisted automatic update of Thunderbird using "check but notify me." For whatever reason on 11/27/2025 Thunderbird was updated to 115.10.1 and it was an unsatisfactory change. Two thing immediately got by attention: 1) the menu bar had been changed and all open tabs had been removed. And 2) I could not find anyway to customize views (see the uploaded image). After two days of fighting this change trying to re-enable custom views, I preserved my mail folders then uninstalled Thunderbird 64-bit and restored Thunderbird 32-bit from an image backup of C:\Program Files (x86)\Mozilla Thunderbird. That of-course required me to set up my profile again and copy the saved mail folders to the new profile directory tree.

I don't like automatic closing of tabs in 115.10.1 and for that alone would not upgrade beyond what I'm now running.

And I can't work without setting up custom views to show messages automatically sent by my UNIX client's nightly backup process. My default view is to "Filter Super User" as all automatic client backup reports come from the root (superuser) account.

The 115.10.1 had some type of filtering named "Quick View" (This is from my memory as I can't consult a running 115.10.1 installation) that is inadequate as it did not offer a way to save the views for later use (that I could find in my frantic state).

You seem to have addressed this topic well but not simple enough for complete non-techies like me who can really only do "Click X, then right hand click Y, then click Z" etc. Is there a noddy solution I could try? Thanks. Derek

I have Mozilla Thunderbird email application with Windows 11. Recently I have problems opening some email texts, but not all. I do receive the mails and heading, but the contents are not displayed. This goes for some mails, and I do not see any connection as to which ones open and which ones don't. I would appreciate your advise. Bo Dahlberg

It started with duplicate Archive and Drafts folders...so I checked TB help, and it gave me several suggestions, including going to my Profile folder and deleting duplicate folders from there. Everything seemed fine...until I realized that suddenly TB has NO emails later than 2022! I went in to Gmail to see if I could recover them...but they're all missing there as well. In my business account--also through Gmail, but managed through my domain name--not just my Inbox, but EVERYTHING is gone. It's as if I never existed.

This is extremely upsetting: I teach and have my own business, and losing all my emails is catastrophic.

Can someone please help?

I've been able to drag emails from my old laptop to subfolders using IMAP. The folders are on the server and with my old laptop, I could drag emails from any account to any folder, regardless of which account it was created under. I started trying to do that with a new laptop and it won't let me drag the email. I have to go through the move > search for folder > select folder process. It's a pain in the butt, especially if I have a lot of emails I want to move. Since I could do it on my old laptop, I'm thinking it's some kind of setting that I have on one that I don't have on the other. I just can't figure out what I did differently on the new laptop that it won't let me drag and drop the emails where I want them.

There's a well known "window-focus bug" in MacOS 26, where clicking on a window (even the title bar) doesn’t bring that app to the front. It seems like Thunderbird is particularly susceptible to this bug, and I was kind of tolerating it in 26.1. But just today I updated to 26.2, and oddly this has made the problem worse. Is anybody else seeing this and is anybody aware of a fix? Various MacOS discussion groups recommend tweaking MacOS mission control settings, but I don't use mission control at all.

Ever since the latest update, Thunderbird (desktop) is extremely slow when connecting to imail.gmail.com. I frequently experience timeouts and authentication failures. This severely impedes my ability to send/receive email. I am running what I assume is the latest version of Windows 11 and have business class Internet with an ethernet connection. Please help!

After getting fed up with the Outlook app on windows. I decided to switch to TB. Now i can recieve my mails but can't send. I don't Use VPN and also checked if Windows Firewall is screwing things up. But those are allowed

Without the following. Unable to login to server (SMTP) smtp.office365.com with username *****@hotmail.com has failed (Translated from dutch)

These are my Settings incoming IMAP server: outlook.office365.com, 993, SSL/TLS, OAuth2 authentication, User Name = *****@hotmail.com outgoing SMTP server: smtp.office365.com, 587, STARTTLS, OAuth2 authentication, User Name = *****@hotmail.com

Nach Update auf Release Kanal kein Geburtstagskalender mehr und Geburtstage werden nicht im Kalender angezeigt. Geburtstage in Kontakten vorhanden. Benutze keine Cloud und kein Google. Wie werden Geburtstage wieder im Kalender angezeigt?

Starting 2026 Comcast is moving all email over to Yahoo email. We will be able to keep our Comcast email address, but as of this writing I do not know what suffix Yahoo will add to my 2 accounts. Both of my Comcast suffixes are Comcast.net and that is how my email comes through now. I was shared a linked that I didn't from Comcast about the pending change. Will the suffix change from Comcast.net? I have attached the link that was shared with me.

I guess with your Comcast e-mail, you need to know this. Comcast e-mail is going away and users are being switched over to Yahoo e-mail sometime in 2026.

Upgrade your Comcast.net email experience to Yahoo Mail

https://www.xfinity.com/support/articles/yahoo-email-migration-overview

Optus (Australia) emails can't be sent or received by Thunderbird on my PC via my Optus wifi internet connection. I can use emails on my phone via mobile data with wifi turned off (different email client on the phone, though). Optus checked all the settings on my PC with me and they are all correct. They insist that it is a Thunderbird issue (doubtful, IMHO) and that I contact you. Is there an issue with Thunderbird connecting with Optus email? If so. is there any resolution to the issue? If not, can you confirm no problem from your end so I can get back to them (again!)

Hi, my Thunderbird calendar reminders are coming up 4 hours after the meeting.

Running Kubuntu. System locale/timezone OK, TBird set to use system time (though manually making it the same didn't help). HW Clock matches system time. Pacific/Auckland.

Tried exporting all my appointments and re-importing them - no change.