Thunderbird Community Forum

I was forced to erase my PC because it was infected with malware. I saved my Tbird profile to my HDD before erasing. I pasted the saved profile to %Appdata% >Thunderbird, copying 1,777 items. When I brought up Tbird, I got the Account Setup window, so I don't think the profile was actually there. What did I do wrong?

It's puzzling when you ask "Why does my Gmail automatically sign out?" after setting it up in Thunderbird, especially since desktop email clients usually maintain a continuous connection. The message "You have been signed out of this account. This may have happened automatically because another user signed in from the same browser" strongly suggests a conflict, but it's typically a browser-related error, not a direct Thunderbird logout.

The most likely culprit for Thunderbird losing access to your Gmail is an authentication issue. Modern Gmail access in Thunderbird relies on OAuth2, a secure protocol. If the OAuth2 token becomes invalid or expires, or if Thunderbird's internal web component (used for the OAuth2 login pop-up) has issues like cookies being disabled, it can repeatedly prompt you for login.

Less common, but possible, are: Google's security systems detecting unusual activity and temporarily blocking access, or, if you're not using OAuth2 and have 2-Step Verification enabled, an expired or revoked App Password. While less direct, a concurrent, conflicting sign-in in a web browser using the same Google account could also contribute to Google invalidating sessions.

To resolve this, ensure your Thunderbird Gmail account is configured to use OAuth2 for both incoming (IMAP) and outgoing (SMTP) server settings. Also, verify that Thunderbird is allowed to accept cookies under its Privacy & Security settings, as this is crucial for the OAuth2 process. Removing saved passwords for the Gmail account in Thunderbird and then restarting it can force a fresh OAuth2 re-authentication.

My contacts list (address book) has always appeared to the left of the new message I am about to write. How do I restore that layout ?

                                        Gustav

After converting from Outlook to Thunderbird, I can see there are 23 unread mails in my Inbox. My problem should have a very simple solution, but I cannot find any. How do I filter my messages in the Inbox to show only those unread???

Bjorn B. Juvkam

When i have read a incoming email the next time i open my email account the email is gone and i cannot find it anywhere... why... i have check my setting Regards Ed

I have 25 filters set up in Thunderbird and all work as expected. However, any mail I receive that is not caught by one of my filters is directed to the folder I have set up in the last filter in my list. Why? Shouldn't any mail not caught by a filter just remain in the inbox? How do I get this unwanted behavior to stop?

I am unable to add new contacts in my contact list. It definitely is creating a problem. Why will it not let me add them, please and how do I fix the issue? I did not have this problem until I got a new computer and using Windows 11.

In AM of 05/23/25 my Thunderbird mail downloaded to my desktop just fine. By afternoon of same day I get an error message (see attached) saying that it is unable to write to my mailbox. Error has continued for almost 24 hours now (thru 05/24/25 AM). I can get the email account on my phone through another program, but I like to save my important mail to my desktop storage. Please advise. (I did nothing to change my Thunderbird configuration on 05/23/25 that would have generated this message.)

In AM of 05/23/25 my Thunderbird mail downloaded to my desktop just fine. By afternoon of same day I get an error message (see attached) saying that it is unable to write to my mailbox. Error has continued for almost 24 hours now (thru 05/24/25 AM). I can get the email account on my phone through another program, but I like to save my important mail to my desktop storage. Please advise. (I did nothing to change my Thunderbird configuration on 05/23/25 that would have generated this message.)

Hi, Can't get rid of the funtion "threads" in Thunderbird. What I want is to ignore any connections between original mail and answers to it. I would like just to have every new mail adressed to me as new unread mail. Not deleted, not visible or marked as "read". The funtion "ignore threads" don't seams to give me that option. Except for that, Thunderbird is great. Better that Outlook since it is able to sync it's caledar with google.

Best Regards, Jack Kagerin

I am moving from Outlook, and have a large amount on Notes. I noted that in the Import options, there is no separate option for Notes. The Notes do come over as a folder within the account. Are there any plans to break out this folder to access it on a separate tab?

In certain instances, I can no longer copy/cut from Cardbook notes. This happened in last few months. I just have time now to post the problem. I know since then Thunderbird had updates and so had windows. I am on Thunderbird 128.5.2esr and Windows 11 and firefox 133.0.3 I used to be able to select a word or many words and then right click. Then copy or paste would show up as option in a list. Now no list shows up. But control c and control v sometimes works. If I control c and control v within the note that works. I can copy from something like Word and control c and paste using control v and vice versa. But if try control c in notes and then control v in website that does not work. And that is what I use most.

Hello, there are several emails in my subaccounts that are no gone and I cannot find them anywhere. As there are a lot of confirming emails about holiday bookings I would be glad to get them back. All of my emails, that I put in presonal subaccounts before July 11th are no longer available. Thank you for answering. Yours Ulrike

Four days ago the Att server started to refuse my password (I assume that was it). After four changes of password, including in Thunderbird, the password keeps being refused. Have exhausted several att agents who can't figure out why it doesn't work. One thought the server settings were correct.