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My grandson got on my computer and was messing around with my email. Now when I open Thunderbird I get a pop up window that says sign in with google to continue to Thunderbird. It has my grandson's Gmail address in it and asks for a password. I can X out of it and continue to Thunderbird but it will pop up several times while I am reading my email. Why is this happening and how do I get rid of this pop up window.

I'm using Thunderbird with an Office 365 business account via EWS.

I'm trying to reduce the amount of storage used on my local machine by setting the "Synchronization & Storage" setting to 3 months instead of downloading everything, but every time I change the setting it doesn't stick.

I'm on Thunderbird 150.0.1 (Windows).

I'm trying to remove a couple accounts that I no longer use in Thunderbird. A window keeps popping up asking for a password, but the mail service is no longer available. When I click on the red delete button for that account, nothing happens. I've deleted all the mail in one of them which I was able to do as I thought I might need to do that first, but I still can't delete it after that. The other one won't even let me delete the emails. How do I delete these so I stop getting asked to put in a password for accounts that are no longer valid and I don't want anymore?

I am a senior who has no desire to be in clouds, social media, etc. I have been using Thunderbird email on my laptop for about a year and a half now. Thank you for allowing me to keep my pop3 account, I have been very happy. I just want to have email on my phone because I like to get notice of email but I like to delete it and collect it on my laptop because it remains on the server. I periodically access the laptop and do all banking, etc. from there. Completely old school with local storage. Everything I have looked up said that I could still keep my pop3 account on my phone. I have a new Samsung A57 that I am trying to set up. The old phone had Outlook but it is locked out so I have to start from scratch. I thought I would rather do that with you than the others that seem to be taking all of our personal data over and leaving us no choice in how we would like to work. Your assistance would be greatly appreciated. Thank you

My email provider has transferred their services to a messaging service and I need to change accounts in Thunderbird from Pop 3 to IMAP. All the solutions I have found so far aren't working for me. Is it possible? This is starting to get pretty urgent as I have to change to the messaging service within the three days.

I received this email: Do you want to keep your Mozilla account and data? Your Mozilla account is used to access free privacy and browsing products like Firefox sync, Mozilla Monitor, Firefox Relay, and MDN. We noticed you haven’t signed in for 2 years. Your account and your personal data will be permanently deleted on Friday, Jul 3, 2026 because you haven’t been active.

I use Firefox every single day. I don't understand this message. Please explain.

Thank you, Cathy

Just installed Thunderbird on Windows 11. Have two accounts: UN1@hotmail.co.jp and UN2@hotmail.co.jp. I created them in exactly the same way, but one of them works without problem, the other shows me "Command Error 12". After searching for a solution on the forum, I understand that none of the suggestions work. The error repeats. What can it be and is there a way to fix this error?

Hello from Sweden, and I'm sorry if any grammar or expression is incorrect.

All of a sudden login credentials is asked for (see attached image), for an old account that I've already (a couple of weeks ago) deleted both in Thunderbird and also on the server (on sethpylad.se). I always click the Cancel button when this comes up, but I don't understand this at all because when I try to send an email to the existing new account on the same server it all works as it should? So it seems like it only ask for credentials for the old/deleted account?

Is there any way I can change any setting to not be annoyed by this from here on?

I'm using a HP laptop. And on my desktop computer I can't really recall having this problem at all.

Edit: I just deleted an Address Book that was associated with that old account, but the problem prevails. /edit

Thanx in advance! Seth Pylad from Sweden

the new "experimental" account center doesn't work (version 150.0) how can I go back to the precedent account creation tool ? the option "experimental account center" is NOT checked, but I still have only the new creation account form.

So I have gone through many of the suggested actions in removing an email account from Thunderbird. It keeps asking for a password for an email account I no longer use. It was a gmail account. I have removed calendar reminders. I have gone to the profiles. It is not listed. I have uninstalled and reinstalled Thunderbird. But Every time I open the program and several times while using. It asks me for the password. How do I remove this?

I've been using Thunderbird for years at this point and it was fine, but then some time after the latest update I stopped getting new emails. I tried a bunch of random "solutions" I found on the internet and I don't remember exactly which one, but eventually I got the web portal to pop up, and it showed that I'm logged out of all my accounts (they all gmail, btw). Using this windows I was able to log back into one of them, but then it didn't popped up again to let me to log into others. For a day or so I was getting email from that one account I logged back into, but then again, suddenly, no new emails. I decided to just start over on a new profile and that's where things went from bad to worse. Now I can't even get past the initial logging process. It gives me "unable to log in at sever" over and over, no matter what I try. I tried a bunch of different config suggestions, I tried the old school way of getting a device password, I've checked if localhost was running something - it wasn't. I tried uninstalling and reinstalling, installing an older esr version (I'm on Win10, thought maybe that has something to do with it) - same thing. Unable to log in at server. I can switch back to my old profile that doesn't get any emails anymore, I've backed it up, but what's the point. Kinda feeling screwed on all fronts here.

Also, whoever is replying to people on reddit with "thunderbird employee" badge, ghosted me after one message. Great support /sarcasm.

Version: latest (whatever auto updated updated to) and 140.8.1esr OS: win10. Mail provider: gmail.

Every time I start up Thunderbird, I receive a "Please verify" message from Google (see screen shot). This message refers to an email account that I deleted because I am no longer authorized to use it ["s***@old****.com]. These requests also turn up regularly if I remain connected. I cannot verify the account because the password has been changed and the verification email is no longer mine.

I have 2 other accounts on Thunderbird; one is linked to a private domain; one is an ***@gmail.com account. Both perform correctly; are configured correctly and cause no problems with passwords, etc.. Other evidence:

In Box: The s***@old****.com account is not present in the left menu window. When I go to Accounts, Settings: The s***@old****.com account is not listed. When I go to Server Settings (In or Out) there is no trace of the 's***@old****.com' account, although the other two accounts have correct settings in the 'Outgoing' server.. Previosly, this email "s***@old****.com" was also linked to my Google Account. I have deleted it from my Google Account; I have deleted it from Thunderbird as an Account. When I disconnect my Google Accounts: This has no apparent effect on frequency of Verification prompts [I close my Safari browser]. When I Close Thunderbird: The Verification prompts for "s***@old****.com" no longer appear.

It seems like Thunderbird is still trying to "Get Messages" from "s***@old****.com" and triggering the Google password protection system (?).

IS THERE A WAY TO FIX THIS IN THUNDERBIRD?

Thanks, Al