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Having tried all solutions I can find on the web nothing works. Computer is new windows 10 with only edge and thunderbird.. My other established computer windows 11, established thunderbird with yahoo and Plusnet working ok but outlook keeps failing despite test connections working and message from Microsoft saying thunderbird has accessed my outlook account. The problem is outgoings. Incoming gine

Since I upgraded to 152.0.1, some s/mime encrypted messages do not display. This happens for both old and new messages. Moreover, for these messages, the flag of "new" stays active even after I click on it, suggesting that thunderbird did not "read" the message. The encryption is done by posteo.de automatically for any email that arrives to me. Even the simplest email just written "test" fails systematically when I send it to myself, but some messages sent from others also fail to display. I have installed the extended support version 140.12.1esr (aarch64) to check, and the emails display fine with it.

Anyone with a similar issue or idea of the problem, which I guess might be a bug? Thanks, cassio.

After many years of using Thunderbird I am now considering ditching it. I am continually getting the Authorisation Failure message when trying to open Thunderbird. Why does this keep happening? It does not happen on my Android devices, just on Windows 11. I have tried deleting all three gmail accounts and re entering them. All is fine until I close down Thunderbird and then open it again. I run Norton 360 and have tried taking off Norton email security, but that didn't work. Any ideas, please?

I had logged this issue in early 2025 but it has never been resolved and still exists.

I received a reply today, Tuesday 7th July, from Wayne Mery, who said "If you are still having problems when using a newer version, please post a new question and we'll take a new look at it.". as the original post has been archived.

So, here are the details:

"I am currently running Thunderbird 152.0.1 (64-bit) and I don't get an automatic prompt for updates and haven't been getting them since I updated to Supernova and now Nebula.

I have the settings set to Check for updates, but let me choose whether to install them, which is the setting I have always had and I used to get automatic prompts for updates with a window opening to show the details of the update as I get in Firefox.

Can someone tell me how to get these automatic updates back."

I have attached a screenshot of the original version.

Thanks.

I have attached a screenshot of the retention settings for the Gmail All Mail folder. This folder contains emails that have a date nine years ago. Can you tell me if I did something wrong in the retention settings?

I thought earlier today it was using the retention settings but I just checked and it is not.

When Thunderbird -- Mozilla -- "killed off Messenger from within TBird" -- via the Messenger - Quick Access -- they damaged a LOT of loyal users.

Why hasn't Mozilla advised in plain clear English (well, and other languages) why this was done, and what happens to all the disenfranchised TBird users ?

Is there ANY chances of getting this back ?

Login to server smtp-mail.outlook.com with username XXXXXX@outlook.com failed.

I am having this error I have tried logging back in, can download mail but not send any. Any ideas? Thank you

Thunderbird 152.0.1 Mac

After sending on one of 4 accounts in Thunderbird (Sky Mail), the "Filter Complete" modal will not shut down.

Cancel will override.

I don't have an error code.

I am using TB 152.0.1 on Windows 11 Home 10.0.26200 Build 26200 I want to have TB on my Galaxy Tab 6 lite, and/or Huawei P20. I have the app installed on both devices, but whenever I try to scan the QR code under 'export for mobile', neither device locks onto it.

I know this problem has been reported before, but what I can do to make it work? Is there a setting I need to check/change, what is that setting, and where do I find it?

Grateful for any help, thank you

I currently have the following:

Mozilla Thunderbird version 152.0.1 (64-bit) installed on a Windows 11 Pro computer. Within this installation are five E-Mail accounts configured and working.

I have selected Export for Mobile.

On Android (Samsung Galaxy S24 Ultra - 5G) One UI Version: 8.5 Android: 16 Kernel: 6.1.145-android14-11-33419968-abS928USQS6DZF2

Thunderbird Version: 20.0

I click on the Import Settings: Try to scan the QR Code from my laptop which says 1 of 2 QR Codes and I get nothing. No pop-ups, no approvals, it just sits there. Clicking done takes me back to the main screen.

I am using Thunderbird for my emails since gmail will no longer support my business emails. I was able to access my sent emails up until April and now I am no longer seeing sent emails show up in the sent folder. Please provide easy to follow steps for this. I need to be able to access my sent emails.

None of my sent emails are accessible. When I go to the sent folder after sending an email, the emails are not there. Same with deleted emails. When I go to that folder, they are not there. Why is Thunderbird email so overly complicated? I think I need a better email provider. I am only using it because gmail will no longer support 3rd party emails (for my business.)

New W11 Pro pc, so new installation of Thunderbird. All profiles and folders moved over ok, but the Bin folder is an issue (main Gmail account IMAP). In my previous Tbird installation, I was able to right click the Bin folder, and be given the option of emptying said folder. Not now. The Spam folder does have the Empty option. Pics illustrate the folder list, what happens when I right click the Bin folder, and what happens when I right click the Spam folder, which does have the 'Empty Spam' option. I can highlight the messages in the Bin folder and delete them that way, but the right click option is shorter, easier... The only item I can find in the Thunderbird help pages tell me to delete the Trash and Trash msf folders in the profile - tried this twice, with no difference. It's a little frustrating... Any help would be welcomed, I guess I'm missing something really simple...

Trying to send e-mails and get the following message:-

Sending of the message failed. An error occurred while sending mail. The server responded: <X@totalise.co.uk>recipiant rejected - relay denied. Please check the message recipient"rod.coleman@totalise.co.uk" and try again.

This happens with all e-mails.

(PII redacted by moderator)

I've just transferred my profile to a new computer, for which I downloaded TB152 (had been running TB128), and no add-ons/extensions work. Of course many were rendered inoperative with the update, but that's not the issue, because:

1. Even those which claim to be compatible, or were updated since the transfer for the purpose of extension compatibility, do not work.
2. Moreover, when I invoke the Add-ons Manager to inquire about the various non-working extensions, none of the links (which can be seen and read by the OS), can be invoked or even copied (to be, for example, pasted into a browser window).

I went through the standard [[Mozilla Support diagnostics|https://support.mozilla.org/en-US/kb/hyperlinks-in-messages-not-working]] and found no answers. Can someone suggest a next step?

Trying to understand why this problem is related only to the extensions, I examined the profile's "extensions" folder. There are 40 .xpi files (same as the number of mostly-disabled (and mostly-expired) extensions in the Add-ons Manager), along with a subdirectory named "staged" containing 7 empty folders with what appear to be .xpi filenames - though none of those empty-folder-filenames match any of the .xpi files in the parent "extensions" folder. Because the "staged" folder has a recent timestamp (apparently the last time TB shut down), it seems to have some significance to TB operation - but what can be the use of it is more than I can see. What is the significance of that folder and its contents?

Two final (and possibly related) questions about this "extensions" folder:

1. Is there any way to relate the <filename>.xpi to the name in the Add-ons Manager?
2. Since nothing in the "extensions" folder identifies which are enabled, there must be some file containing a functional description of the folder's contents. Where would that be?

Grateful for any pointers, -John

Hi,

I was wondering the reason for the change in version 154 about changing the minimize to tray behaiviour when pressing the minimize button to minimizing when pressing the close button. Is there a standard? Why not make it a 2 way option, for users that prefer the older function?

Thanks.

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I am trying Thunderbird with the intention of replacing MS Outlook. So, I'm using it alongside Outlook. This is happening with my Yahoo.com account. FYI - Xfinity migrated my comcast.com account to mail.yahoo.com, which has caused a lot of problems, as well.