Thunderbird コミュニティフォーラム

I didn't know there was a non-ESR version of Thunderbird until I found out by chance a few days ago! Since the latest update to ESR 128.5.2 has crashed 11 times this week, I would like to move to the latest version (64 bit?) non-ESR. There must surely be an official Mozilla step-by-step guide to doing this?

Hi , can anyone help, Been using Thunderbird email for a few years now & many of my emails saved to folders have just disappeared on me , many of them important. Why would this be ? where are they gone ? I didn't delete them myself & its in lots of folders not just one. Appreciate any info on this.

My local folders are missing. There is nothing in my profiles to recover from. This is the second time this has happened after a Thunderbird update. Last time the local folder were found in my profile and I was able to restore them, This time there is nothing to restore. Has this happened to other users?

I'm using Version 128.6.0esr in Windows, but can't do drag and drop file for attachment at all. Previously it still can use this feature but suddenly it came to a stop.

The icon Ø will appear when we are trying to drag and drop a file to the create message window.

We already have tried the troubleshoot with no result.

Any advice on how to repair this?

Thanks

Hi folks, for some months now it has been taking several minutes to download my mails from my provider Netcologne to my Thunderbird mail client. My version: 128.6.0esr (64-bit) OS Windows 10 home 22H2 Previous activities: 1. fault report to provider Netcologne, reply: No error detectable 2. installation of mail client ‘eM Client’. Mails are downloaded in a few seconds, just like a few months ago with Thunderbird mail client.

Something is wrong with the Thunderbird mail client. Please help me, I am an enthusiastic fan of Thunderbird and would like to stay that way. Best regards Friedrich Berger

Since January 8th, 2025 I have not been able to send or receive mail on a regular basis out of Thunderbird. the strange thing is sometimes I can start Thunderbird and it will maybe download current messages, but won't work the rest of the day. Even getting a once in awhile batch of e-mail, I can't send anything at anytime. I don not have a problem going to Earthlink.net/webmail and reading my mail there, but it is not always easy to do this.....thus Thunderbird!!

Thunderbird is up to date.

server: pop.ix.netcom.com on port 110 connectin security as None

Encrypted password checked.  

My outgoing server is amtpauth.earthlink.net port 587 authentication method: Encrypted password connection Security None.

All of this has not changed since mozilla made changes years ago and they are the same settings that are reccommended by Mozilla Thunderbird for the ix.netcom.com people. 

I sure have to have to move to another progam, but I can't keep putting up with this. Hopefully someone can help!! I've added images of my settings and also of the error message I get when trying to send mail. BTW We had about 5 sessions with the India help desk at which we kept getting cut off. When finally getting to chat with someone....they had no answers, they said they would esculate the problem and someone would call in 24 hrs. That never happened...The case ID # 203683399 NO ONE EVER RESPONDED and so the problem persists.

Cannot access email.

Went to email provider website and all emails are there.

Reset password and tried to update Thunderbird. No success.

Using POP account. Can get Thunderbird to hold all information. But when it tries to login to server says it cannot. This started 2 days ago. Also email from another different account ( IMAP) is painfully slow. Thunderbird says it is fully updated. Thunderbird often goes into not responding spinning wheel.

server is mail.(server).com pop puts it at 995 port, email carrier (Spectrum) says should be SSL on but choices are only TLS/SSL or STARTTLS what to use, also should password be used.

I have successfully signed into a Matrix chat and there was a list of messages I could read. But in most later Thunderbird sessions, the Window stays emtpy although in the bottom right corner of the screen popup windows with Matrix messages do appear. In the left pane the rooms I have entered should be displayed, but they are not. When I re-enter a room by hitting the button and re-typing the room's name, the list of joined chats, consisting of this one, appears in the left pane for the fraction of a second. I don't see any item in the config options for chat where I could have screwed something up.

Hello - Some years ago I had old Emails recovered by the support team which were indeed fully deleted in all folders of T'bird. They directed me to the online version to achieve the recovery and it worked well. I am need again and cannot locate those instructions. To be clear, the procedure was from the support team guiding the way. Anyone have possession of these instructions or algorithm, or a better method that still works? Many thanks :)

Since an update 4-5 days ago, Comcast SMTP server does not accept login from Thunderbird. Comcast help page said it was updating and requires a more secure SSL security. Today the Pop3 server does not allow signin either.

How can I select a more secure encryption that will be compatible with comcast.

Thank you.

This issue started to appear 2-3 weeks ago. It appeared on my three ‘smtp.mail.yahoo.com’ (aka, @cox.com) accounts when I was attempting to send a message. The ‘Permanently store this exception’ worked and the messages ceased. My other account: pop3.mailfence.com with smtp.mailfence.com began having the same issue except the “Permanently store this except” function fails to work. At first, only sending (smtp) was failing. Now, I can no longer even access the account without the message (included) being displaying. I am aware that Norton is involved from viewing the certificate information . Yes, I use Norton 360 and have for decades. I have, also, been on the TB support site (https://support.mozilla.org/en-US/products/thunderbird) and found similar issues. Unfortunately, none of them seem to address this specific issue. Thank you in advance for your time and effort. Roger

Thunderbird had never crashed before, but lately, after the last 2 Windows 10 updates within the last 2 weeks, it crashes. It's at 128.5.2esr, the next-to-last update.

It always crashes when I choose "About" and it starts downloading the update. It appears that it doesn't get the 1st byte before crashing. It will still say 0 bytes when it crashes.

It also crashes if I leave it running and the screen goes through the screen saver mode and turns black. Twice it crashed while I was using it.

I thought it might have something to do with the fact that I had 4,000 emails in my Inbox (is there a limit?), so I deleted many and moved many to folders. I now have just under 1,000 in my Inbox.

I also tried restarting in Troubleshoot Mode and updating, but it still crashed at 0 bytes downloaded.

Is there a way to manually download the update and apply it? I can't find it on the website.

The next thing I know to do is reinstall. Is there anything I can try before doing that? Would you suggest uninstall first or reinstall over what's here?

Hello.

I use Thunderbird 128.0esr on Win10.

Recently (maybe following the last update), I get the error (translated from German): "The message has been sent, but no copy has been saved to the Sent directory due to problems of access to network or files. You can try again or save the message to the local folder Sent....

Is there a solution?

Thanks a lot

Cheers

Markus

I have received an email from you saying that emails would be sent following my report of a white screen then Crash Report which has been repeating over several days. Please advise when I shall receive the emails to allow me to recover Thunderbird emails. Thank you, M O'Neill

Suddenly I can no longer send emails. Various messages (wh do not copy), most with hieroglyphics and mentioning the need for authentication. I have very low IT skills & have tried the easier solutions found on the internet. A particular question: some web answers suggest that sender addresses with @wanadoo.fr (the old name for Orange) may no longer be compatible with smtp.orange.fr outgoing mail. If so, what to do? Thanks for any ideas.

When I ask Thunderbird to import from Outlook (under the tools menu) it only brings across empty folders.

For example, when it creates the “Outlook Import” set of folders in Thunderbird I get an empty “Outbox” folder. But it does not create an “Inbox” (that had 1 email in it, in my test case I was trying).

This is odd, because I’m sure I have seen this work correctly (importing all folders and emails) recently.

At first I thought it was something about this particular email account, so I tried another and got the same result. So I created a new user on the PC (Windows 11 with all the latest updates), set up an email account in Outlook there, did the import in Thunderbird and exactly the same happened, only the empty folders.

It does this with the main IMAP account I have set up in Outlook and also with a PST I opened in Outlook. It always runs without any errors, but only imports empty folders.

I’m using the latest build of Thunderbird (128.6.0esr (64-bit)). It’s also the latest version of Outlook Version 2501 (build 18429.20044).

What’s going on?

I created a 2nd account years ago and it has worked since then. Now when I create a third account, it works well but when I disconnect I loose the account and have to recreate it again. How come?

After migrating my Windows Live Mail (WLM) 2012 email folders to Thunderbird, I saw that the folder names were truncated and not the same long name I had the folder named in WLM. I have been editing the folder names by copying the WLM folder name to my clipboard and then renaming that truncated folder name in Thunderbird by renaming the folder use the CTRL-V (paste from clipboard).

Prior to today after having done the above, the renamed folder in Thunderbird was moved according to its new alphabetical name in the listing, but usually in the same vicinity of folders that I was renaming. Now, the newly renamed folder seems to disappear from the listing. I scrolled through all of the folders from a to z but couldn't find it. Out of desperation, I closed Thunderbird and then reopend it to see if that would refresh my list of folders with those folders I had just renamed. And, sure enough all of those renamed folders are visible and in the correct alphatical place on the list.

Any guidance or insight would be greatly appreciated!