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Hi there,

I use extensively tags in my workflow, and I just switched from Gmail to Thunderbird. My only problem is that in Thunderbird, tags apply to a single message and not to the whole thread.

In other words, if I reply to an email with a certain tag, the answer is not tagged.

Is there a way to apply tags to a message and then the whole thread will keep the same tag?

Tank you in advance for your help, Best regards,

Livio

My tags stopped working, right click -> Tag no longer has the list of tags, although 'Manage Tags' shows my list of tags and 'New Tag' applies the tag to the selected message, but no tags appear on right click-> Tag list. I'm using Mac OS Version 15.5 and Thunderbird 139.0.2 and have rebooted and reinstalled Thunderbird to no effect. Thanks for any help you may have!

Hi all, Since the August 2025 update, I've noticed Thunderbird is no longer syncing some of my Gmail folders (mostly labels I created manually in Gmail). The inbox syncs fine, but custom labels show up empty or don’t appear at all.

Things I’ve tried:

Removing and re-adding the Gmail account using OAuth

Checking Gmail’s IMAP settings — all folders are selected for sync

Rebuilding folder index files in Thunderbird

I didn’t have this issue before the latest Thunderbird update. Is anyone else seeing this? Could it be a bug with label handling or IMAP path prefix?

Any advice would be appreciated!

Hi,

I remember from the past, the existence of a file (with a strange name) which contained additional information (tags, forwarded etc) for every (IMAP-) email-message.

Problem is, I can't find it any more, and (stupid me) I forgot it's name and where it's located.

Could someone please

• help my memory with the name and where it's (or was) located
• AND when it has been replaced in TB128 by something else, what that something is and where it's located

Thank you

Hello. I encountered the following difficulty. There is an email address that is used on several computers. How can I make it so that each user can highlight a letter in a different color from the others to understand who is working with it? For example, one - red, and the other - green

I would like to move the coloured tag to the left on the delivered email so that It is in my eyeline area. It resides on the right, I would like it on the left. Is this possible?

Thanks,

Mike Duffy

I'm using Thunderbird to connect to the AOL IMAP server. There seemed to be some missing messages in the Inbox so I did folder / Properties / Repair Folder. This caused ALL the messages to be downloaded from the server. (I suppose this is needed but it was unexpected.) Anyway, after the repair finished I noticed that many but not all of the tags I had applied to various messages had disappeared. I am using the tag feature quite a lot, so this is a significant problem.

Why did Thunderbird do that? Is there anyway I can get the tags back?

Thanks, David

I share an info@ with 4 colleagues. We label incoming emails with each our colour. One of my colleague cannot see the colour of the emails we label for her. How do we solve that issue? Thank you in advance for your kind help once more, Mette

Hi. All the inbox messages are marked "drafts".Have compared ALL settings with TB on my other computer and nrheyare the same.Both have version 138.0.1.This is very annoying and dont know when or how it started.Thanks for your help.

Previous when I chose a Tag it selected the entire header and Title. Now it only insert a little Tag icon.

I need a big bright highlighted from and title like previously. Also, Now the FROM and MESSAGE TITLE re two lines. What changed? I can't see to go back.

Thanks Stan

I share an "info@" account with a coworker and we tag emails as done when we complete out work. I can tag "done" from my computer and it synchs with her account. When she tags "done" on her computer the tag does not synch in my account.

I should add that this was working fine until we got a new computer for my coworker and reloaded a new version of Thunderbird. Everything else is synching fine.

I think I am missing something in settings?

Thank you in advance!

I am managing large amounts of Thunderbird mail and would like to be able to flexibly organize it by topic, sender, or perhaps other criteria in order spend less time on admin and more on content. The model I have in mind is that found on an Xperia tablet.

Hello,

I have an email on several computers: office@company-aaa.com. Configuration via IMAP but TAG synchronization does not work for me. The first TAG works for me: Important (red color, shortcut button with key no. 1). But the rest do not synchronize. Generally, I use about 20 tags, but one more tag also synchronizes but incorrectly, (the third with the ninth on another computer).

I looked through the prefs.js file, but I do not see any connections or reasons why it does not work. How to manage this so that all Tags work? Please help, it will make my daily work in the team much easier. Regards. Grzegorz

I have 4 messages in my inbox (IMAP not Gmail). They are all labelled "Later" and one of them has a second tag "Important". These labels just appeared after I started using Thunderbird as from last month (2025-01-01). I found out how they should be removed: "More"-"Labels"-"0 - Remove all labels" or just click to toggle.

Expected behavour: Click to toggle off, stay off. Choose "0 - Remove all labels", stay removed

Actual behavour: With the pop up window open the label is gone, but when it's closed or another message selected, the label is back again.

Please help

Attached images: 1: Message is selected, go to "More"-"Labels"-"0 - Remove all labels" 2: Label is removed - for now 3: click on another message, the label is back

For years when I shop online I have been manually moving order confirmation emails to a Local Folder called "Orders" so I can search them do e.g. reorder items. When I began using Thunderbird as a Gmail client, I continued the practice. But this isn't a Gmail-centric way of doing things, and I can't search my Thunderbird local folder when I'm accessing Gmail remotely on my phone.

So going forward I want to add the Gmail label "Orders" to each order confirmation email. But what do I do with my legacy Thunderbird Local Folder messages? I need some way to tell Thunderbird: 'For each message in this Local Folder, tell Gmail to label it with the Gmail label "Orders"'. Is there an easy way to do that? If not, is there some way I could harvest the Message IDs of the messages and run some script (perhaps one I have to write myself)?

There are >2,000 messages in the folder, so doing this by hand one-by-one is simply not a viable option. I'm happy to roll up my sleeves and do some scripting work though. Thanks for any advice, even if it is just "you're out of luck". :)

Using Thunderbird into gmail. If you click on All Mail you get all your mail of course. It is difficult to find the originating folder. The header Locations only gives you the location All Mail which is useless. I guess you could go into gmail and fiddle with Tags and Folders but haven't tried. Anyone know an easy workaround. And of course we should all be clamoring for a fix

Hi,

Is there a way to set tags/labels that persist on the IMAP server? That way I can create an automation tool that can work with the tags that TB sets, or I can have the automation set the tags and have TB recognize them.

This is similar to what GMail does: if I put a tag in the client, I ca use an external tool to process the emails and that tool can see the label.

I searched and I see that IMAP is suppsoed to support keywords or tags but I don't see how that wokrs with Thunderbird.

Thanks,

L

I am a very long time user of Outlook Client (Classic) mail app from MSFT.

It has been my practice to annotate incoming mail by editing the subject. For example when I receive an email about a financial transaction such as a online payment or a charge, I edit the subject adding the amout, what was the charge/purchase for and sanitized last four of account number plus any other useful info. I move these emails to a separate folder, either "eBills" or "Receipts". That way I can quickly find receipts, bills, and other transactions without having to open each individual mail message.

Apparently Thunderbird does not support this functionality. Is that correct?

Thanks,

Robert