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If I want to respond to a message, using the sender’s Email-address as the addressee, I always get the following response: “A unique identity matching the From address was not found. The message will be sent using the current From field and settings from identity Prof. Dr. Manfred Lange <m.a.lange@cyi.ac.cy>.” How can I make Firefox use the sender’s Email instead?

Used old method to setup email accounts and it worked fine. New UI will jam the user name and host name and host name together for new email account setup. In UI for: Username It will have the full user and host together eg. test1@test.com Then during account setup after you enter password, I can see it on the bottom of the UI panel, so like this... test1@test.com@test.com When you go back it will put in the Username field, test1@test.com even when you deleted the host test.com from it. Also the host field screws up. It will put a period in front of the host name eg. .test.com So you have to delete the period.

I have received today 16/10/2026 an email purporting to be from Firefox telling me that my account will be terminated in 7 days and account totally deleted. I'm not sure it's genuine as I use Firefox regularly as my main server. If it is correct can you indicate how I maintain my access to the web and my Firefox account please? "Message: Your Mozilla account and data will be deleted in 7 days Your Mozilla account is used to access free privacy and browsing products like Firefox sync, Mozilla Monitor, Firefox Relay, and MDN. Your account and your personal data will be permanently deleted on Friday, Oct 23, 2026 because you haven’t been active". Roberto Franceschini vespasianimp@yahoo.co.uk

There used to be an option before, but now it just always pops up. It is never useful for me and constantly switching to offline mode or using some other account first is a pain. There is no button to continue manually.

I was using Thunderbird 153.4.0esr 64-bit and my send feature on GMail stopped working. It just spun and spun with no connection.

So, I removed the GMail account from my accounts list and then tried re-adding it, but only received the following error (see image attached). This implies what? I have an account at GMail already? I have a remnant of the previous working account in my configuration? It was working fine until today.

I'm using the automatically derived ports (993 inbound and 465 outbound). That error message appears immediately after having clicked the "Continue" button.

System:

 Kernel: 6.8.0-147-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0 clocksource: tsc
 Desktop: Xfce v: 4.18.1 tk: Gtk v: 3.24.41 wm: xfwm4 v: 4.18.0 with: xfce4-panel
   tools: light-locker vt: 7 dm: LightDM v: 1.30.0 Distro: Linux Mint 22.2 Zara
   base: Ubuntu 24.04 noble

I am trying to replace my Outlook account which has been blocked by Microsoft AI and remains blocked after multiple attempts to get it working again. I have just added a new account and can send @mail.uk e-mail from Thunderbird. However, there is only an in-box folder shown on Thunderbird and no trace of the sent e-mail - although I can confirm that is was received by two test recipients. I did consider a Thunderbird e-mail account as a replacement but, at 79, I avoid additional costs whenever possible. Can you suggest an alternative free e-mail service which works on Thunderbird? My g-mail account used to work but now I am having password problems.

I disconnected a Google Workspace account - Calendar and mail - from a former workplace. As far as I can tell, it's been deleted from Thunderbird.

However, I'll still get dialog boxes and an occasional browser popup asking me to reauthorise it.

How do I get rid of it once and for all?

I'm trying to add an email account to Thunderbird that (seems to) require Oauth2 authentication, but it keeps opening the wrong provider in the Firefox window that it launches. The email account is a professional G-Suite address, but it always opens login.microsoft.com instead.

I've checked the MX record for the domain and it correctly lists Google servers, and my laptop was able to authenticate to the correct destination just fine. I have used my desktop for work before, which is all handled through Microsoft accounts, so I suspect that there's some kind of locally cached data which is identifying O365 as the provider, but I can't find any relevant settings or documentation from Firefox. I also cannot find any settings or controls for the Oauth provider in Thunderbird in order to force a Google workflow.

I found instructions on how to remove the kitimat@wavecable.com account but the is not a delete option. Any suggestions?

My gmail account in Thunderbird stopped working on my lap top but is is still working on my phone and note pad. This happens from time to time so I usually just delete the account in Settings then Account settings then just add it as a new account. But having deleted the account I now can't add it back again. It doesn't allow me to add the account. At the Incomming Server settings Error Creating Account Incoming server already exists

Thunderbird told me that I had to give the password of one of my email adresses again. So I added it but it did not work, so I changed my adress' password online and tried again, still nothing ; so I deleted my address from thunderbird and tried to ass it again but it still doesn't work

I checked all the previous infos, IMAPetc, everything is correct except in the end when I add the password (which is correct because I can access my email adress on the website with it), it does not work

I tried all the solutions I could find, like deactivating the "account hub" option, or getting rid of my antivirus, but nothing works...

Hi, the android Thunderbird mobile app shows all email accounts in one folder and is very confusing!

is it possible to view each email account in a separate folder? thank you

Device: Google Pixel 10 XL, Android 17 App: Thunderbird Beta for Android 24.0b2 Desktop: Thunderbird 157.0.1 (64-bit, release channel)

I imported my eight accounts from Thunderbird Desktop using Tools > Export for Mobile and scanned the QR codes in the beta app. The scan worked and the accounts imported, but setup had several confusing steps:

1. For each Google account, an Android screen appeared saying "select which apps to restore", as if I were setting up a new phone. I didn't know what to select, so I skipped it each time. 2. After skipping, a blank accounts.google.com page appeared. I never saw a normal Google permission screen. 3. After the last account, the app showed a screen asking me to enter an email address and would not let me continue. When I pressed back and reopened the app, all accounts were there and receiving mail, so it seems to be a leftover add-account prompt after a successful import.

For comparison, with the stable app, the same accounts imported into K-9 Mail with the same kind of QR code with no restore-apps screen, no blank page, and no extra prompt. Gmail accounts signed in normally.

The accounts work, so this is about confusing setup steps rather than lost data.

Expected: Google accounts sign in through the normal permission flow without the Android restore-apps screen, and the app goes to the inbox after import without asking for another account.

I have an account - david.woodcock@skynet .be that is no longer active. But Thunderbird is still trying to connect to it and download messages. How do I stop Thunderbird from trying to access this account?