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I would like help removing one of the folders called drafts as it is empty and uses the other for subfolders. I have tried right clicking but it has no effect on removing it. Only the draft folder where the subfolders are located can be removed. How do I remove the extra draft folder. Thanks in advance for your help.

My Inbox folder has suddenly dropped to second last position in the folder list. How can I get it back to the top of the list? Is it possible to move the folders around?

I have lost the indicator in the folder pane showing which folder I'm in. It used to have a small color tab in the folder pane on the left hand side. Indicating that the folder was selected. Any ideas to get it back? Thunderbird 140.3.1esr (64-bit)

For as far back as I can remember I've been using Mozilla Thunderbird on a old computer running Windows 7. I've a Win10 machine here so a few months ago, I downloaded the latest Thunderbird and I was suprised to see it looked very different. After a bit of experimenting I managed to get it looking familiar so I uninstalled it with the intention of trying it again early in 2026 when I've a bit more free time, So this morning I installed the latest version but it looks even more different now :-(

I'm not sure how to attach images here but if it works, the original one looked like Capture01 and this morning's one is like Capture02. I still had my installer from a few months ago so I installed that one and it looks the same as today's one. Notice that there's no menu bar any more and AFAICT I can only view email headers and not their contents. Also, the 3 boxes at the top RHS (for sizing the window / minimizing it etc) don't work at all.

Is it me doing something wrong - or are there maybe some settings somewhere that I need to experiment with?

I have used TB for many, many years and have never had this problem before. In the tool bar at the top of the email Inbox toolbar there are a number of blank emails which are getting annoying. Is there a way to remove them. I am using v. 128.6.0esr

I am attaching a screenshot

Please can anyone help.

My trash folder deletes my emails after just 30 days. I want to keep my deleted emails in the trash folder for ever (or almost), but I can't a way to change the period for keeping the emails.

Until recently the folder pane could be sized or hidden via the double-headed arrowed cursor. Shortly after the 151.0.1 update this stopped working. All suggested solutions have not worked. A full uninstall (Revo Uninstall) and completely new profile has not fixed the problem. Folder pane only responds to the menu setting and is only Open/close but no sizing.

As the topic says, the message list turned from the usual dark-mode look, to a full black background after updating to 151.0.

Was this an intentional change? How can I revert it?

In Thunderbird I see two methods of accessing/editing SMTP settings for email accounts.

1. Using the "Outgoing Server (SMTP)" which displays all the email accounts in a list. You then select one and click "Edit" to view or edit it.

2. On each email account page there is an "Edit SMTP server" button. Click that to view or edit the SMTP settings for that account.

I'm seeing two problems:

1 - The settings made using #1 above don't carry over into what I see using #2 above.

2 - Using method #2 above, changing the SMTP settings for my newest email account also changes the settings (seen using #2 above) on one other email account. And vice-versa.

What could be causing this?

Hello.

I've found myself to rely on Firefox for some specific workflows that require sending emails that are generated automatically by a website, and I use it across multiple devices, such as Windows, macOS.

Unfortunately, when it comes to iOS, using the aforementioned website, when tapping the relevant "mailto" button, nothing happens.

Some months ago the specific website that I use, was failing to do this action on any webkit browser, but this was later patched by the developer and the flow now works correctly within Safari. This was caused by stricter enforcement of "user-initiated" actions.

Unfortunately it seems that Firefox isn't either capable of invoking the mail client, or get the data from the website properly.

I had to restore my PC and thunderbird. Can't figure out, ideas appreciated

 1. I had a personal picture in the message pane on start up, it wasn't a web page.,

 2. incoming email was one line, if I remember it just showed the subject, if I wanted the who I could just open it.

Thunderbird did an update 2 days ago. All of a sudden the buttons like 'forward as attachment' (and the others that were in that list) have disappeared. What happened to them? They used to be at the top left when you clicked on an email that you wanted to forward as attachment. Update shows this version--140.1.0esr

Thanks in advance for any help in getting those things back

" attach the signature from a file instead "

I put the URL in there and it does not retain it and use it as signature image. It is a jpg. It browses in a URL on my browser and loads fine but T/B refuses to allow it.

Suggestions ?

Whenever I open a message from the inbox into its own window, the message text and images are tiny and unreadable until I zoom (Shift-Cmd-+) them larger. And when I reply to a message, the text is also starts out tiny, but gets larger when I Zoom it up with the original message. Similarly, the column-header icons of the inbox are tiny, while the text is OK.

All the rest of the interface is normal and readable, except for the tiny text and buttons in the interface-command/confirmation boxes.

I have experimented with the suggestions in these question-replies, but to no avail:

https://support.mozilla.org/en-US/questions/1474665

https://support.mozilla.org/en-US/questions/1480963

I can adjust the font size and density from the "hamburger menu", just fine. And the MacOS 15.3.n-on-Intel settings seem right.

What am I missing? What else is there to change?

Thanks in advance... Alexander, long-time T'bird user

I use this dark mode theme: Star Trek in Thunderbird but override Thunderbird so that Thunderbird is in light mode and the folder, message list and message panes have a white background with black text. The override uses the Autoconfig method (for Firefox but it was working also in Thunderbird Customize Firefox using AutoConfig . This is my thunderbird.cfg file in Thunderbird's install folder containing:

// IMPORTANT: Start your code on the 2nd line lockPref("browser.theme.content-theme", 2); lockPref("browser.theme.toolbar-theme", 2);

and my autoconfig.js file in Thunderbird's defaults/pref folder containing:

pref("general.config.filename", "thunderbird.cfg"); pref("general.config.obscure_value", 0);

In Thunderbird 145 this worked - all panes had a white background. However, when I updated to Thunderbird 146, the background in the folder, message list and message panes changed to grey with black or white text. With Thunderbird 146, both files are still present and the prefs in about:config are present with the 2 value. The Thunderbird 146 changelog mentions Visual and UX fixes and security fixes.

My Windows 10 colour settings are: default Windows mode = Dark default app mode = Light. These are my preferred settings.

I have changed temporarily to Thunderbird 140.6.0esr and got the white background re-enabled. How do I get the white background and black text back again in Thunderbird 146 please?

Firefox recently had an update, and now when I am uploading files, I can't double click to upload selected files. I have to first select the file, and then click the open button.

Before the latest Firefox update, I could simply double click on files to upload. This workflow was much faster.

If I go to about:config, and search for: widget.use-xdg-desktop-portal.file-picker, I can change the value from 0 to 2, and then I can upload files by double clicking. However, then Firefox forgets my last upload location, and always opens in the home folder.

If I set it back to 0, it remembers my last upload location, but I can't double click to open files.

My current Firefox version is 152.0.1. Any help would be appreciated. Thanks.

Others have mentioned this but I'm not sure if there is a fix/anything is being done. The threads are all from previous Thunderbird versions.

I use Thunderbird for work. I have to find specific emails and folders - get to them quick. I am no longer able to do this. It's really distressing.

This is something really basic, that should be the default or else really easy to change.

I'm on a Windows machine and using Thunderbird 140.3.0esr. I've been using Thunderbird since 2003 and never had any problems. Now I'm panicking!

I want to change all the tab bars to hide thread column but i cant do it because toolkit.legacyUserProfileCustomizations.stylesheets doesnt look for css file any more. That's a pita, i have a lot of folders I there another way of changing this and other things globally?

My wife and I have separate emails and we also share an email account. My laptopn has Thunderbird profile set up to receive from both and data is held on our local NAS Wifes Laptop does the same and her data is on her folder on local NAS. For the shared email, we can each access and it creates a local copy on BOTH of our respective folders on the NAS. Whilst this works, i cant help wondering if we're setting up a sync loop. THe shared email isnt used much, but is there a way that we can share the exact same files /data for the shared email on the local NAS. ie. Still have one view in Thunderbird client but have the shared email data be on a common shared folder. Still keeping our separate profiles. This worked for Outlook pst files. But New Outlook is a disaster hence moving to THunderbird. . This seems to be a simple scenario. 3 email accounts 1 shared. 3 local data sets. One shared. 2 separate laptopns and THunderbird installations. One common local NAS. ANyone have any guidance for best practice ? THanks