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hi, in the last few days i have been having issues receiving emails from btinternet.com but only to my inbox (other folders are updating) i am getting the error message The current operation on 'Inbox' did not succeed. The mail server for account username@btinternet.com responded: EXPUNGE failed. i have removed the account and re-set it up, i have made sure expunge on exit is disabled, repair does nothing on the inbox, nor does compact etc. i have run out of ideas hy this is happening, so i downloaded bluemail, to see if the problem came from thunderbird itself. it is working fine on there and immediately updated all my mails. with no issues. i have tried deleting the folder 'username'@btinternet.com and the msf files. i need help to figure out why this is happening. i checked the IMAP settings and its all correct and the same as in bluemail. also worth noting i can SEND emails no problem too from that account, just not receive them... i have tried to add as many relevent screenshots as i can think of.

Logged into Thunderbird this morning. On current version. Noticed that the local trash folder had emails in it. I have not changed any of the multiple account setting. Send some test emails fro 2 accounts and they ended up in the local folder trash. What has happened. I want this redirection to stop. What other demons have been created by the current update. HOW CAN i fix this problem?

Moved my thunderbird account to my new lap top using %appdata% . All has transferred but it is not letting me put in the passwords for imap and smtp. I checked on the old laptop, and I do have them correct. Any help would be lovely. I can access my gmail account online if I have to.

Hello,

Recently, the manual message check feature has stopped working, whether I use the “Get Messages” button or the menu.

When this feature was still working, I could see the progress of the message retrieval from the server in the status bar; now nothing happens (no display in the status bar and no messages are retrieved).

I should note that this isn’t a connection issue, since new messages are successfully retrieved during periodic checks or when Thunderbird starts up.

Has anyone else encountered this problem?

Thanks!

Since a few days the free VPN in Firefox doesn't work anymore. When I activate it and try to load a website, i get the message: Connection with VPN failed. Try again in a few minutes. It also says, that my connection is possibly not private and that an app can possibly see my data traffic. The VPN always used to work fine, and I didn't change anything.

System:

Win 11 Home (lastest updates, also my notebook's latest updates from the manufacturer) Thunderbird version 151.0

Okay, this is a multiple clusterf#@$.

I ended up needing to do a Win 11 Home "reset" keeping data. But I needed to back up some files first. But my back up drive was full. Usually, it's because of EaseUs ToDo not deleting files and just adding and adding to the system backup. But that wasn't the main issue: my Thunderbird profile (which I backup separately) was about 280 GIGABYTES in size! This is an extension of a prior problem for which nobody on here new how to solve and certainly nobody from Mozilla chimed in to help. So I did what I'd done before (but it'd never been like this) and delected a couple of THOUSAND seemingly redundant iterations of files from my profile, but NONE of the folders inside the profile.

Of course the Win11 reset deleted Thunderbird and all the profile information. No big problem, I've done this before...but it didn't work copying in all of the old files (from my backup drive) into a new profile and selecting that profile to boot. So, I went to the "Recycle Bin", undeleted all of those files back into my backed-up profile. But I'm only able to get Thunderbird to see all of my address book information. It is not finding my Thunderbird and email account settings nor my email messages (21 years worth). I 100% did NOT delete my email messages (c:\users\USERNAME\AppData\Roaming\Thunderbird\Profiles\PROFILENAME\Mail).

I can laboriously redo my email account information (five different accounts) and Thunderbird user settings, but I really DESPERATELY NEED HELP restoring my email messages.

PLEASE PLEASE HELP ME!

Aloha. I'm helping a friend with setting up a new Windows 11 PC, and cannot get Thunderbird to connect to Spectrum's servers. I spent an hour on the phone with Spectrum support and they just gave up and said it must be an issue with Thunderbird. Here are the details:

- Brand new Dell 24 All-in-One EC24250 - Windows 11 25H2 plus all additional fixes. - All Dell drivers updated. - Thunderbird V155.0 64-bit

If I click on 'Get Messages' after a while I get: "Connection to server mail.twc.com timed out". I've gone into the config editor and changed mailnews.tcptimeout from 100 to 500 and still get the error.

In the Account Settings | Server Settings | Test server connection I get: An error occurred connecting to mail.twc.com:993.

I've tried this with both setting up a brand new account in Thunderbird, and also via copying the 'Thunderbird' folder from %appdata%\roaming from her old machine.

Email configuration (from Spectrum).

IMAP Settings Server name: mail.twc.com Port: 993 user name: abcd@hawaii.rr.com Connection Security: SSL/TLS Authentication method: Normal password

SMTP settings Server Name: mail.twc.com Port 587 Connection Security: STARTTLS Authentication method: Normal password

Can anyone help me troubleshoot this scenario?

Mahalo, Harry Z

Got this error: Your connection may not be private An app or service may see your encrypted traffic from this site. Learn more

Now I know what may be causing it but you offer no solution.

suddenly it's taking minutes to send an email - if it sends at all. Many times I get a 'failed' pop up window but when I click SEND again it will sometimes go through. Also Some of my emails aren't coming up - only a few of them. And they aren't un-bolding.

There is seriously something wrong with the way Firefox operates. There is nothing wrong with the following site so why am I seeing this message?

Be careful. Something doesn’t look right.

Firefox spotted a potentially serious security issue with news.sky.com. Someone pretending to be the site could try to steal things like credit card info, passwords, or emails.

news.sky.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site. Advanced What makes the site look dangerous?

The site is set up to allow only secure connections, but there’s a problem with the site’s certificate. It’s possible that a bad actor is trying to impersonate the site. Sites use certificates issued by a certificate authority to prove they’re really who they say they are. Firefox doesn’t trust this site because its certificate isn’t valid for news.sky.com. The certificate is only valid for: . What can you do about it?

news.sky.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

Problem with message are going to the Trash folder, not the Inbox with all local folders in place. After taken in profile the local folders off, the new downloading from message are working just fine to the Inbox . What is the problem Thanks for helping.

Thunderbird has stopped getting messages and 'get messages' doesn't work & I have to close & restart thunderbird to receive them. Nothing has changed with the email client itself.

I know messages have arrived by checking my providers phone app, but for Thunderbird to download them to my PC I now have to restart Thunderbird to get new messages

I had multiple tab groups which I had chosen to save and close. These tab groups have now completely disappeared and I cannot find them. When I began using Tab Groups, I had checked and there was no information stating that unopened tab groups would be deleted. I want these groups back. If I had known Tab Groups would disappear, I would have saved my tabs into a folder. The only Tab Groups that show up now are under "Recent tab groups". If tab groups are going to be deleted after a set period of time, it should be stated clearly in the tab group settings. It would also be really useful to archive them into a bookmarked folder so people don't unexpectedly lose hours of research.

Whenever I turn the free 50GN Firefox VPN on, regardless of the set VPN location, my connection immediately cuts. I've tried refreshing Firefox, raising and lowering my security and DNS over HTTPs settings, clearing DNS cache, and updating Firefox, but none of these attempts fixed it. I can tell its the VPN since everything will load again after I turn it off.

When I had my DNS over HTTPs set to default, it used to say I was connected to cloudflare, but after trying the VPN with it set to off or custom, it now says "DNS over HTTPs is off" when set to default. When I turned on the VPN while the default setting was on, it gave me an error message regarding cloudflare that I can't remember or recreate now that the "DNS over HTTPs is off" at all times. It will only say I'm using cloudflare on the custom setting.

I had a similar issue to this issue a couple months ago, but I resolved it by putting my security settings to default. This time, it seems to be a bit more complex than that.

I use IMAP to grab my mail, if that's important.

In the last couple of days, my normal method of deleting messages from my Inbox, right-clicking on the message and selecting the trash can icon, has stopped working: the message disappears for a moment, then reappears. I can delete it by dragging it to the Trash folder in the folders pane on the left.

I've followed the instructions given in several postings here, including deleting the Trash and trash.msf files, doing that and then creating an empty txt file called Trash (no .txt), and using Repair Folder.

It just now occurred to me to disconnect from the Internet and try to delete a message. It worked fine?!

Hi Mozilla team,

I’d like to report a serious issue with Firefox lately. The browser has been performing very poorly and frequently becomes “Not Responding.” In many cases, websites fail to load properly or get stuck indefinitely, even though my internet connection is working normally.

I’m experiencing these issues on the latest version of Windows 11 with the latest version of Firefox. This has become quite frustrating and significantly affects my daily browsing experience.

I hope the Firefox team can investigate these stability and website-loading issues and provide a fix soon. Firefox used to be much more reliable, but recently the overall experience has been very disappointing.

Thank you.