Thunderbird コミュニティフォーラム

Hi folks. Been using Thunderbird for years now. Never had an issue till now. It recently began to check the spelling on EVERY email. Even if spelling was perfect. It never displays a misspelled word (I'm a good speller). Window comes up and despite hitting ignore it refuses to send. Only after you select Close will it send.

I've uninstalled it and did a fresh install. No luck. I did keep the old profile.

I believe that version 145.0, newly installed on the 9th December, 2025 was showing server folders correctly; the server folder name matched the client folder name.

After upgrading to 146.0 on the 10th December, the server folder names for some folders are displaying with different client folder names.

The IMAP account has both "spam" and "junk" folders, Thunderbird is now displaying both as "Spam", you can only determine which folder is which by showing folder properties. It appears to users that there are two "Spam" folders now and not the two distinct folders with their own names.

Similar behaviour is happening for "Sent" and "Sent Messages" folders, both now display as "Sent".

These changes are confusing, the client sees two "Spam" folders and two "Sent" folders instead of the original proper server folder names.

Why has the display name for these folders changed?

How can I get TB to display the real underlying folder names?

What is the name of the element that corresponds to the background color of this message pane? This is a default background of a message window when I first open Thunderbird. I already have userChrome setup to modify other elements and I attempted to use the inspector tool to try to find the name of the message background color but I could not identify it. Please provide the name of the element in the form that I can use to add to my existing userChrome.css file to customize this black window pane.

In the upper right hand corner there should be a minus sign, restore/down sign and an X. Instead of these I have what looks like an X in a box. It appears to be fixed when I run in Trouble mode. Even the default theme shows it wrong. This just began happening. Thanks to anyone who can help me out.

Hello, In a recent upgrade to Thunderbird Mac OS x146.0.1 (aarch64), the FILTER selection options on some drop down menus are now blank. Example: "Priority" "Status"

These drop down menus now show no options (eg. read,)

I've two screen shots to illustrate.

Thanks for looking into this.

Glenn S

Currently using Thunderbird 147.0 (64 bit)

What I want to do is move messages between folders and subfolders without triggering automatic downloads. In this case, I want the folders to be local only and not saved on the server.

When I moved messages as described, they first seem like they are moving okay. My target folder shows the correct number and the source folder appears empty. Then, the messages re-appear in the source folder. The target folder still shows all the messages but if I repair it to ensure it is okay, it gets reduced. Only some of the messages are moved. No warnings are given that repairing it would cause a problem. Since this is a local action would I would expect it to be relatively quick. This also triggers a download from the server to the source folder every time something is moved.

I have tried changing synchronization options to offline but that doesn't have any effect. Any suggestions would be greatly appreciated, along with the explanation of what may be causing this behavior.

Thunderbird message header pane is so large that I can't read messages. The top 2/3rd of my screen has the list of messages, header bar, files, etc. The bottom 1/3 is for the actual email message, but the header takes up nearly half of that with just the "From", "To", and "Subject lines taking up more than half of that space. Depending on the text of the html message, sometimes I can only read one line at a time, which makes it difficult to actually comprehend a message while scrolling, particularly if it's a long message. I can't resize it to make it larger, though I can make it smaller. My eyesight isn't quite as good as it used to be so I use a larger font than I used to, ie: 12pt rather than 10pt, and that makes it worse. Any suggestions?

I've looked at various other forums and chats, and it looks like this isn't possible...but is there a way to have T'bird expand all email threads by default for all folders, so I don't keep on having to hit the "*" to make it happen? This seems like an easy fix, whereby the user could have threads collapsed or expanded by default.

Nach der Formatierung einer Tabelle verbleiben rote gestrichelte Linien um den Zellen der Tabelle. Diese Linien werden auch gedruckt. Wie kann das vermieden werden?

I recently updated from Windows 10 to Windows 11 and have been using Thunderbird for my 4 email accounts for about a decade. Since the update, all my sent messages have a > sign next to them which I have to click on to view the various messages sent to the same person, with the latest message chronologically displayed near the bottom of the grouping. My thread option has been unselected. This is a new and unwanted layout and I only wish to see my emails displayed individually and chronologically, with the most recent near the top. How do I remove these groupings with the > icons and just see each message displayed individually? My frantic research only points to installing/selecting an 'add on' perhaps. I just want to see my sent emails individually like I have for the last decade as well as in my folders from previous years. SEND HELP!

I have loaded thunderbird and the email preview pane is not displaying. It was OK this morning but has disappeared now. Is this a temp[orary issue or has there been an update of the program.

Hello, I just installed a clean version of Thunderbird (version 146.0.1) and set up my email accounts and CardDAV address books.

I do have multiple address books and I tried to find a setting to show the name of the address book for each contact shown in the suggestion list for recipients when composing a new email. However, I could only find a general setting to get suggestions for recipients from local address books, nothing more specific.

On a different device I still have Thunderbird 140.6.0esr installed. There, the suggestion list does indeed show the name of the address book next to the suggested contact: "name of contact <email@address> - name of addressbook"

I tried to find a corresponding setting for this in version 140.6.0esr, but without success.

So I'm wondering:

1. Did the style/layout of the suggestion list change in recent versions?
2. Does a setting exist to show the name of the address book in the suggestion list?

Additional info: The only extension that is installed and enabled on both devices is ImportExportTools NG.