Diễn đàn hỗ trợ Thunderbird

I use vertical view. Hate threading so that's turned off. I use a medium to large message pane. Recently been having issues with column visibility. Not sure if this is new or whether it's that I've come to a Linux client from a Windows one and there's a setting I missed when I set up the client.

Essentially dragging the column divider doesn't work properly (for me). The columns always seem to auto adjust width. Similarly if I resize the message pane the columns don't remain fixed they auto adjust.

I don't find this helpful. I prefer to set up the columns to display the amount I want/need in subject and From and I truncate the date to simply not display time.

How do I set column widths to remain where I put them? Or is this function now lost.

I'm reading the question Thread's broken sorting makes it completely unusable and I have to agree that order of messages within thread is not the best one - ascending. For example, I am subscribed to a forum messages and I'm getting all the notifications for a topic to a thread. Currently I have like 85 messages in a thread and to see the newest one I have to scroll all the way down each time - scrolling 85 messages is a lot and it is getting worse because the number of messages keeps growing. After I've seen the newest message, I have to scroll all the way up to close the thread. (or am I missing something - perhaps some shortcuts?)

But I guess for some such ordering is obviously fine. Hence, I guess, an option how to sort threads might come handy. Perhaps even having a default sort order and an override per thread?

PS. funnily enough, I'll have the same issue with notifications for this question :)

I recently obtained a digital certificate for use with S/MIME. I followed the process laid out in

https://support.mozilla.org/en-US/kb/instructions-smime-certificate-using-csr

to generate my key pair, create a CSR, submit it to a CA, download the resulting certificate file, and import it into Thunderbird. I also imported the intermediate certificate showed as the issuer for my cert, which in turn appears to be signed by one of the certs trusted by default in Thunderbird.

Having done that, I see the certificate showing up under "your certificates" in the Certificate Manager, with a "not before" date in the past and a "not after" date in the future. So everything appears to look correct, but when I try to send a signed email I get the following error message as a pop-up:

"Sending of the message failed. You specified that this message should be digitally signed, but the application either failed to find the signing certificate specified in your Mail & Newsgroup Account Settings, or the certificate has expired."

And if I look at the console in developer tools I see:

"mailnews.send: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIMsgComposeSecure.beginCryptoEncapsulation]

   _startCryptoEncapsulation resource:///modules/MimeMessage.sys.mjs:488
   _writePart resource:///modules/MimeMessage.sys.mjs:536
   createMessageFile resource:///modules/MimeMessage.sys.mjs:82
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:147
   CompleteGenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6456
   GenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6372
   SendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6984
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1085
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1263
   goDoCommand chrome://messenger/content/globalOverlay.js:99
   oncommand chrome://messenger/content/messengercompose/messengercompose.xhtml:1
   openWindowPrompt resource:///actors/PromptParent.sys.mjs:75
   receiveMessage resource:///actors/PromptParent.sys.mjs:18
   openPrompt resource://gre/modules/Prompter.sys.mjs:1228
   openPromptSync resource://gre/modules/Prompter.sys.mjs:1071
   alert resource://gre/modules/Prompter.sys.mjs:1375
   alert resource://gre/modules/Prompter.sys.mjs:78
   fail resource:///modules/MessageSend.sys.mjs:358
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:157

MessageSend.sys.mjs:149:32

   createAndSendMessage resource:///modules/MessageSend.sys.mjs:149
   CompleteGenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6456
   GenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6372
   SendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6984
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1085
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1263
   goDoCommand chrome://messenger/content/globalOverlay.js:99
   oncommand chrome://messenger/content/messengercompose/messengercompose.xhtml:1
   openWindowPrompt resource:///actors/PromptParent.sys.mjs:75
   receiveMessage resource:///actors/PromptParent.sys.mjs:18
   openPrompt resource://gre/modules/Prompter.sys.mjs:1228
   openPromptSync resource://gre/modules/Prompter.sys.mjs:1071
   alert resource://gre/modules/Prompter.sys.mjs:1375
   alert resource://gre/modules/Prompter.sys.mjs:78
   fail resource:///modules/MessageSend.sys.mjs:358
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:157"

I can't make sense of the error message, since the certificate appears under "your certificates" in the certificate manager, and it does not appear to be expired. Can anyone suggest how to determine the root cause and fix it? Does it matter that the certificate is for a non-default identify I've added for the account in Thunderbird? Does it matter if the "common name" in the certificate doesn't match the "Your Name" field in Thunderbird? Any pointers on what to check would be appreciated.

When I receive a junk email, it spends a brief time in my inbox before being moved to the spam folder by the automatic classifier of Thunderbird. In that brief window, the notification system already displays the notification. I found no way of changing that behavior. Is this normal behavior? How to change it?

I am using Kubuntu 26.04 and I am using the monthly stable channel version of the Thunderbird Snap. In KDE system settings, the default email client is set to Thunderbird. Upon every startup of Thunderbird, it ask if I want to set it as the default client for email, newsgroups, feeds and calendar and when I click yes and close Thunderbird and reopen it it does the same thing, over and over. Otherwise the email program operates just fine otherwise. My email accounts are all setup properly and functioning and working and it downloads email just fine. It just has that annoying popup upon every startup. I've included two images to show what I mean. I like the Snap version and prefer that container format. I would like someone who is smarter than me to file a bug on my behalf.

Since a few days, there seems to be an italicized copy of each folder in my mailbox. I tried multiple times to delete them, but, although they seem deleted, they appear again when I start up Thunderbird. I already contacted the hosting service, but they replied that this is an issue of Thunderbird.

In my Thunderbird I have some folders with names printed italic starting with "INBOX". The folders are empty, so it's easy to delete them. After deleting I don't see the folders anymore. But after shutting down Thunderbird and starting Thunderbird again, the folders are back... How do I delete the folders to not see them anymore?

Best regards, Marianne

TB connects to Yahoo Plus just fine. Folders display but no emails display?? I fixed this once a while back by deleting config files in TB and re-adding Yahoo. It has happened again?? Forgot which files I wiped (in Linux Mint). Anyway to avoid doing this continually and what's the fix?

Hi! I use Thunderbird at home, but at work I have to use Outlook. This M$ sh... uses Ctrl-Q to mark emails as read. After a long day at work, I go home, sit down at my computer, and automatically keep pressing Ctrl-Q instead of R. I'm sure I'm not alone in having this problem. Could you please allow users to choose which hotkey exits Thunderbird, or at least disable the hotkey?

Hi, I had/have an IMAP account at my ISP Host, with TB connecting to.

There has been a number of occasions where I have used the Servers IMAP copy of emails as a back up, and from memory am sure that when connecting a fresh client, all emails/folders etc updated and down loaded from the server > client, in fact nothing got deleted on either side, and both sides synced.

My host (Fasthosts - I will name and shame) deleted my whole IMAP account by mistake.

They hastily re-instated just the package but all the emails had been wiped from the server.

I did though have a full copy of all emails on my TB IMAP client.

When I reconnected my client to the server after the re-instatement, i expected my clients emails to upload to the server, but instead they 'vanished' - and I have nothing but empty folders.

Am I able to recover any of these emails from my client, ie are they sitting in a file/folder still ??

TB has restarted a number of times since, and I fear the folder may have been compacted, but I cannot be sure.

Thoughts appreciated.

I'm using thunderbird 149.0.1. I'm trying to add a microsoft exchange account (@outlook.com). Using the account hub, after I entered the full name and email address and did the two-factor authorization, I'm stuck on the second screen (see attached). According to the instruction , I should not enter my account password in the first dialog box. However this is not possible since the password field is required. If I enter my account password in the password field, and leave the "Your login" part blank (or fill it with my email address), the window would complain "Exchange auth error" after I clicked continue. If I put a random string in the "Your login" field, clicking continue would lead me to a microsoft signin dialog, and if I sign in with my credential and password, the same "Exchange auth error" would still appear after I finished all the steps in the microsoft popup.

Bonjour,

Je viens de recevoir mon nouveau PC et je souhaite utiliser THUNDERBIRD comme client mail. Mais lorsque je rentre mon identifiant et mot de passe. Il me dit que ce ne sont pas les bons alors que je verifie sur MOZILLA mon id et MP et tout semble correcte car je peux me connecter sans aucun problème. Pouvez-vous me dire d'où vient le problème, s'il vous plaît ?

Needed to edit an address. 2 problems: 1. somehow part of the address appears in the drop-down = home/work/mobile. How do I delete it? 2. edits are not saved (yes I have clicked save). Permissions all seem good.

Hello all After a Thunderbird update, a folder named "thunderbird" was created in my Personal folder. This folder is empty. After deleting the folder, it is recreated when Thunderbird is restarted. How do I get rid of this folder? Alternatively, what does this folder contain, and how can I move it to a different location?

thanks Thomas

I opened Thunderbird 140.9.1esr from flatpak on Debian 12 and today I noticed a message that says: "Flatpak ESR application ID change We're switching the Flatpak ESR application ID from org.mozilla.Thunderbird to org.mozilla.thunderbord_esr."

1. How does Thunderbird know it's flatpak name is changing? How do i turn off all auto updates including checking things like flatpak name changing?

I've successfully connected to a hosted Exchange server through EWS and NTLM authentication (kudos BTW). But there is a problem - often during operations against EWS I'm presented with "Login to account XXX failed" "Login to server YYY with account XXX failed". I can ignore it (cancel) and it will work for seconds or minutes but eventually reappear. Sometimes it's very frequent, sometimes is here and there. TL;DR; connection works, I can read directories and e-mails.

From looking at development tools I see these scenarios: 1. POST requests return 200 always (no messsage of course) 2. Eventually a POST would return 401. Then Thunderbird issues a GET, it returns 401 as well but response includes header WWW-Authenticate: NTLM XXXXXX. Then another GET is issued containing header "Authorization" with the value from previous response. This time it gets 200 and continues without POST requests without a dialog. 3. Sometimes there are more POST requests with 401 (I assume in parallel) before a GET is issued and then I see a dialog. Sometimes it recovers (regardless of whether I cancel or retry), sometimes gets stuck with 401 with dialog reappearing each time it tries something. This case it's similar in sense that thunderbird issues GET with 401 and WWW-Authenticate header, issues another GET with Authenticate header but still gets 401.

If I had to guess I'd say the problem happens when POST requests are issued in parallel, not sequentially. OTOH it might be a problem at the server, but it isn't very likely.