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When I open Thunderbird (Mozilla), my files are not current. In other words, the most recent emails, probably since the last time I used Thunderbird, in my file folders are missing. I have tried changing the server settings but I think they are correct. Please be patient with me, I am unfamiliar with all the terminology, etc. Also, when I first enter Thunderbird, it does not recognize my password. A window opens with the message "Login to server imap.postoffice.net with username john.fn@usa.net failed." That message also appears when I click on Get Messages. Thanks for any help.

This is a continuation of a problem I reported earlier... https://support.mozilla.org/en-US/questions/1442170

Updating to version 115.9 did not solve the problem. Today I updated to 115.10.1 and the problem persists. Thunderbird is also recommending that I update to version 116, but I don't even see that listed on the Mozilla web page for the change logs.

Thunderbird 115.10.1, Mac OS 10.13.6, iMac 20-in Early 2008 model.

I can open Thunderbird and check mail in multiple accounts. If I close the Thunderbird window (but leave the app running), CPU usage will eventually jump up to more than 100%. It does not happen right away, but could take 10 minutes or so. Currently it is at 115% processor usage. If I open the Thunderbird window again, the processor usage drops to under 8%, then drops again to below 0.4%.

All of a sudden, when I hover over a tab, a small window of the web site that tab is in, appears. Never happened before.

I did go into Performance Options - Visual Effects and unchecked "enable peek," but it didn't work.

How do I stop these windows from appearing?

Windows 10.

I am going to switch OS soon, with open core patcher.. I alreasdy lost 2 years of bookmarks 5 months ago, I can't have it happen again.. What is the easiest way to save my book marks for new OS / COMP?

I use SMTP settings

Description: smtp.office365.com Server Name: smtp.office365.com Port: 587 User Name: mypersonalaccout@hotmail.com Authentication method: OAuth2 Connection Security: STARTTLS

but TB is incapable of sending email. Either I got dialog https://software9119.technology/__other/tb/dialog.png or error https://software9119.technology/__other/tb/timed-out.png.

I tried cleaning cache and made some re+/search with no avail. There seems to exist some Authenticated SMTP but this is only available on Exchange 365 while this is my personal Outlook.com account.

Same question had Bill Swartout at 1/9/24, 2:30 PM with no answer, https://support.mozilla.org/en-US/questions/1423404#answer-1629472.

Kia Ora Koutou from Aotearoa New Zealand.

After several hours of sheer frustration, including reading a significant number of posts I am still without result.

Thunderbird keeps asking for my my password for both my SMTP and IMAP settings despite all of these being correct.

I have checked with my domain and email provider (mail.1stdomains.co.nz) and they inform me that it appears to be a thunderbird settings.

Checking the thunderbird settings they are correct including passwords, however, the mail client just refuses to download the mail providing a dialogue box with "login to account "<PRIVACY>" failed. Enter new password, Cancel, Retry.

Is there some way to fix this error?

You have recently released version Thunderbird 128.1.1 in which you have changed the Compact View so that it is effectively no longer a Compact View, because the spaces have been increased between the Folders in the sidebar folder pane. I have been using Thunderbird for a couple of months and really liked the Compact View but now it has been spoiled. I don't understand why it was necessary to change this, and would be grateful if you would please revert the Compact View to how it appeared in version 115

Kind regards

Brian Lawrence

I have set up Syncing on Firefox and it was simple but I can't figure out how to do it in Thunderbird. I am recovering from a PC Reset and want to ensure I do not lose anything if I have to have my Iaptop sent away to be repaired.

I spent a long time looking for an email today. I sent it earlier in the day so was looking at the latest messages with todays date. I eventually found it after srearching for the Subject. The message was threaded but the message showing was from a few days ago. That was when I noticed the little arrow. That was when all was revealed. The version of TBird I used until I Reset PC last week did not have settings like that.

Please hep me.

I didn't know which Topic to choose so if its wrong please change it.

After an update to Thunderbird around 8/10/24, I can still list future calendar events, but no longer past events. It is very useful for me to list past events. For example, I can quickly find out when I last had a flu shot. Could you restore this ability to print a complete list of past events, as well as future events? Thanks! Carl Lund

For the last couple weeks I have been unable to rename, delete, add to, or edit my email storage folders under any of my email pop accounts. I have not made any changes to the set up during this time. Only TB upgrades.

I CAN move email messages into and out of the folders. No problem there. I can also receive and send emails with no problem.

I have 128.2esr(64-bit) running on the latest Windows. This problem occurs on both my laptop and desktop.

Long story short I cannot send emails with attchments no matter how small if I have more than one Yahoo account.

W11 Thunderbird 128.2.1

In fault finding I have reinstalled TB and set up accouts for Gmail and Outlook with multiple accounts and all work correctly including Yahoo unless I have more than one Yahoo account.

If I set up more than one Yahoo account I lose the ability to send emails with attachments for Yahoo. To test: 1- No Yahoo accounts and cerificates removed from TB. 2-Set up one Yahoo account, accept certs and test by sending an email with an attachment. All Good. 3-Set up an addittional Yahoo account and test by sending an email with an attachment. Will Fail, server will time out eventually. 4-To regain sending with attachments > I have to delete all Yahoo accounts and remove the Certificte exceptions then recreate a single Yahoo account. Once I recreate a single Yahoo account and accept the Certificate exceptions I can then send emails with attachments. As long as I only have one Yahoo account.

Any ideas.

Since yesterday I have Thunderbird nebula 128.2.3esr on my Windows 10. But I cannot find my calendar and the new left sidebar isn't available, but only a little button on the left upper corner with seven button without function. I've tried a lot, I cannot find any description about a same failure in the Internet.

I'm running for quite a time Thunderbird on Windows up to Win11 without any problem. For about 3 years I'm using the same TB profile in dual boot environment with Linux Mint (v21 until last week and now version 22). I understood why I didn't get access from Linux side after the latest TB update in Windows as obviously the file structure and other things had changed to make it incompatible to elder versions.

However, as Linux is now my normal working environment, I've tried it again after upgraded my system to Linux Mint 22 Cinnamon 6.2.9 , kernel 6.8.0-44-generic and failed again, having the same error message when starting the profile: "Thunderbird is already running, but not responding. To use Thunderbird, you must first close the existing process, restart your device, ore use a different profile. "sudo killall Thunderbird" didn't find a running process.

I've tried importing everything in a new profile, which worked (more or less), but failed with all attempts getting access to my local profile. A local profile appears after importing but contains no data, trying to import its data separately doesn't trigger any error message when just ticking "E-Mail", but nothing is imported. When ticking "E-Mail" and "Settings", I'm getting a red alert that asks me to look into the error console which doesn't help either.

What can I do ????

I tried changing the authentication method to OAUTH2 for my Outlook live mail account (POP). For that, I had to change the server name to office365.com. After restarting Thunderbird, I was able to download new messages but all the old messages already stored in Thunderbird disappeared, even though Thunderbird still shows the same old Local Directory as being used.

How do I change the authentication to OAUTH2 & get my old messages back?

If I delete & again create the Outlook live account, would it effect my old mails/filters ?

hi

can't associate files with thunderbird even thougfh the association is set correctly. error just says i should make an association etc its updated and addons turned of anyone got any ideas, thanks

Whenever I try to send an e mail or reply to an email I get an error message telling me that the Connection to the Outgoing Server SMTP was lost in the middle of the transaction. I have check with my ISP (Telstra Australia) and there is no fault at their end. The account settings in Thunderbird are correct and I have the latest version. I can receive e mails but cant send any. This problem has only occured in the last couple of days. Can you help please.

For the past few months, videos on YouTube haven't been playing properly. They load just fine and there's no issues with the auto, but once the video starts playing it will sometimes be zoomed into the top left corner, making it impossible to properly see what's going on.

This happens with music videos too, both official and lyrical. It will be zoomed in close to the top left corner and just barely catches what's going on in the video. Sometimes, video do play like they're supposed to, but for the most part, they'll be zoomed in as soon as I hit play.

I've been on Thunderbird for almost 20 years and a Mozilla fan. Have evolved a fairly elaborate configuration of local (POP) email folders, rules, calendar, and accounts to manage & organize email activity, retention, archiving, etc. I've not had to deal with Profiles in previous upgrades and don't have much experience with it.

The recent Oct 1 push of Firefox & Thunderbird 131.0 releases took me by surprise. I was able to re-implement the previous Firefox profile to recover bookmarks, cookies, passwords, etc. However, when T-Bird warned that 131.0 was Beta & unsupported I took the suggestion to download & install the current supported release: 128.3.0 (I was on 128.2.3). Then hell came.

Once downloaded, installed & launched, Thunderbird 128.3 cautioned the new profile created with T-Bird 131.0 was incompatible with previous versions and that I should create a new one, which I did. Still could not get new T-Bird to recognize previous profile, so I tried uninstalling, downloading & reinstalling 128.3 multiple times, each time prompted to create a new profile before proceeding. I tried to follow the previous profile restoration process detailed on support forums & articles, but none seemed specifically relevant to my situation.

I located my profiles in the appdata roaming profile folder, including what I think are most recent based on size of mail folders. Can't determine whether I had just one or several in use due to the extent of my setup. Could really use some help & advice to: 1) Determine which profile was in most recent use prior to T-Bird upgrade. 2) Whether more than one profile was in use. 3) Re-implement the profile I was using on T-Bird 128.2.3 with my new 128.3.0

Regards & many thanks in advance, John C Houston

PS You'll ask why I would upgrade to 131.0 from 128.2.3. Answer: it was on auto-update and 131.0 is what was pushed. No more auto-updates for this guy!

Thunderbird keeps asking me for the password of an email account every time I restart it. The account was removed from Thunderbird several months ago. Even when the account is set up again, it asks for the password in a continuous loop. The email account itself cannot be deleted or the password changed as it is used by multiple parties.

I have tried sevaral things and it seriously is driving me crazy...

I am testing a private POP3 mail server, so I set up an account in Thunderbird for it. I set it to check for email every minute.

I have since shut the server down, but Thunderbird is giving me no warning that it is unable to fetch new messages for the account, which I find surprising.

What is the expected behaviour?