Thunderbird Community Forum

I want Thunderbird to stop marking everything I delete as having been read. The way it works now, if I accidentally delete mail that I haven't read yet it's much more difficult to find it when everything is marked read even when it wasn't. I searched everywhere and haven't come up with a solution for this. It was reported as a bug years ago and was never fixed.

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).

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.

Running Thunderbird 140.5.0esr

This has been happening for a few weeks now somewhat randomly. The folders under Mail for one of my accounts keep moving around and are not in alphabetical order anymore. Most folders are OK, but a few either jump to the top of bottom of the list. I can manually drag them back, only for different folders to do it the next time.

The folders in questions are 2 levels down from Mail.

I use Ubuntu on a Dell Laptop and there is a number attached to the Thunderbird desktop icon on the side-bar which is not related to the number of unread messages?? What is this number about?

As it turns out, my LOCAL FOLDERS is a sub-file in my account. I have a whole bunch of sub-files within the LOCAL FOLDERS sub-file. When I right click on that file, it does not give me the option to reorganize (re-alphabetize) that sub-file. In other words, I want to reorganize the sub-files of a sub-file. Is this just not an option, or is there a way to do this?

Forwarded emails contain no signature, either above or below the forwarded email body.

No means exists in settings to specify that a signature should be in forwarded emails.

Thunderbird resists configuration for included signatures specified in the configuration editor.

Is there a reason that settings, such as columns, layout, ordering, folder colours, etc. are not retained in the msf itself?

I have to use multiple machines, so tend to have an archive that I share across them as the primary storage of emails. However, nothing is retained between machines which is a bit annoying when trying to colour code for easy visual cues. So it seems clear that this information is currently stored in the local profile, even though the archive data is a filesystem.