Thunderbird Community Forum

I have Thunderbird 153.2.0esr which runs 2 Email filter (on Inbox and on Outbox)

These filters worked for years.

Suddenly, about at the end of July 2026, the stopped working.

I suspect that one of the latest release of Thunderbird make them stop working.

Is it possible? Any suggest?

Also the filter log registry is empty.

Years ago when I was using Thunderbird there was "fix" for the Advance to next message pop-up, which appears when you press N or P to move to the next/previous message, and that message is on another account. If I remember correctly I think the fix was going into the "debug list" where you could change individual settings if you knew the name of the setting, and set it to off.

Anyway I couldn't find that list at all in the current version (probably a good thing). Is there a setting somewhere or fix where I can turn off this popup?

On September 5, Thunderbird updated to 155.0 (20260828141248) (on Windows 11 10.0.26200). I use IMAP.

Since then, when I try to delete a message, I get an error: The current operation on ‘Inbox’ did not succeed. The mail server for account <email address> responded [TRYCREATE] Mailbox doesn’t exist: INBOX/Trash (0.001 + 0.000 secs)

But in Settings, "When I delete a message: Move it to this folder: Trash" is set. Not Inbox/Trash or INBOX.Trash, which also exist, but Trash at the same level as Inbox. I logged into webmail for this account, and there's definitely a folder for Trash. All deleted messages prior to the update are still there. If I delete a message in web mail, it is moved to the Trash folder.

The same is true of the Sent folder. In Settings, "When sending messages, automatically: Place a copy in: "Sent" Folder on: <account name>."

It looks to me like Thunderbird is doing something different from what the Settings say, and definitely something different than what it did before the update.

Suggestions?

I used to be able to set message filters to play a sound of my choosing after a message was filtered into a folder (a chime so i know when mail from a client arrives). For a while it was not an option, so I used various extensions that eventually were no longer supported (ToneQuilla, Mailbox Alert, FiltaQuilla, Soundmail). I suspect that the last one may have corrupted my Thunderbird and caused my recent issues, so I removed it (and now I have no extensions installed). Sound Mail is the only extension I can find that plays a sound for filtered mail only.

Meanwhile, the "Play Sound" option has appeared again in v155.0.1, but with no choice of sound file, and nothing plays. It's not a sound issue; other sounds play in other programs, and the normal new mail sound plays when I enable it (but I don't want sound notifications for all mail, just client mail).

Any solutions?

Good afternoon

I have been struggling to find some messages specific to specific dates and spend an awful amount of time tryomh yo access the correct one.

The solution proposed is a bit unclear to me, as it refers to "future folders". I need to unthread all my messages. Is this possible?

Thanks

PS The only version number i could find was for Firefox. There does not seem to be one for Thunderbird.

I have Win11, Thunderbird Windows MSIX packagethunderbird-MSIX - 1.0, and several accounts (The box below won't take anything past "Thunderbird Window.")

I'm looking for some way to make a different ring either for one of the accounts or for certain domains or for a subfolder -- any way that I'll know when something comes in from specific domains. The special ring(s) can be for each of the two domains or both of them. Can that be done?

154.0 (64-bit) on Windows 11

My filters are broken in Thunderbird. I have deleted and recreated some to no avail.

I moved some folders from Local to under my inbox and it said it would update the filters automatically, but noticed it didn't do this. Looking at the Filter Rules it just left either the first or second column of Perform these actions under the Filter Rules empty rather than updating them. I tried moving the folders back to see if the filters would then work, but it's a mixed bag. Some filter properly and others only go under say Newsletters, but don't filter into Newsletters > Adobe for example. Others just sit in the inbox. I've tried moving some rules to the top of the list hoping that'd give them priority to be run first, but it hasn't helped. I have a lot of filters setup to help me track newsletters, classes, meetings, job applications, etc. I've missed some responses for a couple of days because of this. Any suggestions?

So I don't miss anyone, thanks in advance.

I have "Allow remote content in messages" turned off. However I receive many messages for which I wish to allow it for that message. I do so and it works fine.

What I would like to be able to do is to have TB learn the message senders for whom I have allowed remote content so I don't have to click it every time. Is this a feature that is available that I am missing, or is it just not possible?

If not possible, please advise as I will submit for an enhancement.

How do I make (set) TB to open a new window NOT a tab? It continues to open tabs which I don't like nor see, thereby I close TB not the tab I didn't notice (nor use)

Notification requests I would like Thunderbird to 1) notify me that I have received new email(s) even before I have opened Thunderbird. Partly by changing the icon on the taskbar and partly by playing a sound. And 2) also retrieve the emails that are there automatically when I open Thunderbird. Is that possible? How do I do that? K.r. /hans peter

My folders are in disarray and it is cutting into my productivity to file emails. I have tried but it in settings but it doesn't work. Many are in alpha order but there are 2 different two different sections of the same name, and some odd files end up in an alphabetized section.

For instance there are 2 different ZBV sections with other stray folders in the same area that should be in there own alpha folder area. It's a mess to find the right folder. I have to scroll up and own and look for the folder I need to file in. I would be happy to donate, and i have in the past, but I really need this to get fixed. Please, please, please...

I know that to view the composition toolbar, I need to open up a new message, then click View, and then click Toolbars. However, what do I do if the Menu Bar is also now visible? See attached screenshot.

My Thunderbird does look strange, though it works alright. It annoys me, there are black-gray rectanguler spots left top and bottom. It dissapears when in full screen mode. It is not in any other program. I add a picture. Is there anybody who knows how to solve this. Thanks, Hans, Netherlands

送信したメールは「送信済みファイル」に残っていましたが、急に残らなくなりました。 サイトを見て「送信済ファイル」のフォルダ名をsentに直そうとしましたが変更できません。 フォルダのアイコンは紙飛行機ですが、フォルダの名称の問題でしょうか。 また、設定→アカウント設定→送信控えと特別なフォルダー　の”返信元のメッセージと同じフォルダに 返信を保存する”にチェックしましたが、それでも残りません。 対処方法をご教示ください。 よろしくお願いします。

A couple nights ago I updated from 140.13.0esr to 140.14.1esr, then for haha's, I checked for updates again and it took the big 153.1.1esr 'Meadow' update, now it won't play the selected email notification sound that it has been playing for the last 20+ years. It will play the 'Default system sound for new email' or any other sound file in my Media folder, old ones or brand new ones I put in there, but it will not play the one that it has been playing for the past 20+ years. I delete it and add a new copy of it and it will not play that one .wav file, plays everything else, but not that one.