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Hello,

I have added few accounts to the program, but with one account: info@danduct.pl

Thunderbird stops working and I cannot click on anything. There is no possibility to add account manually because the program hangs itself.

Please help, I don't wanna switch to other program!

Best Regards, Jan Nęciński

Bonjour à vous ! Impossible de passer l'étape de la configuration de mon adresse email existante : je reçois systématiquement (en vert) "config' trouvée dans la base de données du FAI de Mozilla PUIS après clic sur "continuer" ET sur "Terminer" , une nouvelle fenêtre avec : "connexion au serveur impossible. La config', l'identifiant ou le mot de passe sont probablement erronée" ; et ce, malgré changements multiples de tous les paramètres demandés !! Même avec config' manuelle et toutes options concernant le mot de passe... Auriez-vous une explication et surtout une solution ?! Merci !

I use TB with Gmail accounts on a PC without problems. Recently acquired a Chromebook and installed Linux version of TB. TB finds my existing Gmail IMAP configuration, but is unable to connect to the server. I'm entering my Gmail email address and the password saved in TB password manager on my PC. FYI, I am visually impaired (20/400) and it's difficult to research the issue, so any help or leads to a solution would be greatly appreciated. Thanks.

The downloaded file name is: part_000000(5),csv The small window that appears asks: "What should Firefox do with this file?" I clicked on "Open with Firefox", then clicked "OK", but the window just vibrates and doesn't open the file. The file contains the URL's of all the pocket saves that will be lost after October 8th.

(Still) Migrating from Windows 10 desktop to Windows 11 Laptop. I exported my profile from the desktop, and checked the version of Tbird it is running. Then I opened the new laptop and had to update that machine to latest version. I know I should have updated the old desktop Before I did the export, so I'll have to go back and export it again, right? But the desktop, now up to date, is running 140.2 and the new laptop is updated to 142.0 both 64 bit. Will I be able to import the profile from the old to the new if the version numbers aren't the same? Both say I have the latest updates. Thank you. Stacy

All of a sudden when i sign in to Amazon I get this box: Windows Security: Please sign in to amazon .com: This request comes from Firefox.........: Never asked for it how do I turn it OFF?? I have no2FA in either Amazon or Firefox but all of a sudden i need to enter a Security Code.

Secure Connection Failed

An error occurred during a connection to okporns.com. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

why this error is coming bold text

"Secure connection and security warning error pages in Firefox." I have read this article, but it does not really help. Since about Monday this week that i have been experiencing a 'lockout' from certain websites that i trust and regularly visit. How is it possible that you can override my own personal security options? This is occurring with Duckduckgo. Using Google allows access to the website. Using Brave presents no problems at all.

So i am going to move away from Firefox to Brave. I appreciate warnings but not lockout. You guys do not know the websites i have been visiting for decades and they are all legal and ethical.

I have a huge and vital archive of past emails in Thunderbird on my old Windows 10 PC. The hard drive containing the Thunderbird profile has now failed and I can't access its contents. I have a new Windows 11 PC and have installed Thunderbird on it. I thought I had backed up my Thunderbird profile on an external drive, so have copied this backup onto the new PC, and have tried to use Thunderbird's Import function, but I get an error message each time, saying 'import failed unexpectedly'. The backup I'm using was saved using a data backup program called Bvckup2 and consists of folders called '$Archive', 'Cache2', 'Safebrowsing' and 'StartupCache'. Am I doing something wrong? Is it possible I've been backing up the wrong thing? Am I going to have to send the failed hard drive to a data recovery specialist and hope that they can access it?

A few weeks ago, I was able to check and reword the text of my emails in my Thunderbird email program. Unfortunately, I can no longer find this option. Do you know anything about this and why it is hidden now?

Just updated to latest Thunderbird version and now I can't send my email. I keep getting the message "Login to server smtp.broadband.rogers.com with username [my email address] failed."

Then when I exit this notification, the following shows up "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'."

I made not changes afer in upgrade of Thunderbird to latest version.

Any help you provide would be appreciated.

Bob Gmeindl bob.gmeindl@gmail.com (btw, this is not the email address I use with Thunderbird - that one is bgmeindl@rogers.com)

Updating the old question I have as I have attached more detailed information.

Same profile existing in Thunderbird and one is taking up 100 GB space. The Cloud station folder was setup before, and I have no history of it, it might be a shared drive, I don't know why it takes up 100 gb of space and it has a same copy on the Users profile with lesser storage around 33 gb. Can somebody help, i'm not deleting any profiles cause I don't want to accidentally delete emails and the profile has emails older than 2020.

I need to free up some space on this machine without losing the emails as disk is getting full because of this problem.

Attached screenshots

Why is this font so small, I have tried everything so much so that I have the about.config on my bookmark tool bar, I have tried the extensions that do not work, zoom makes everything too big, increase the font on my desk top. When I go into the about.config ....To increase the font size in the Firefox address bar, you can modify the layout.css.devPixelsPerPx setting in about:config or edit the userChrome.css file to apply custom CSS rules none of this works. as you can se from the picture the font is SUPER TINY!!! I have changed the setting on my computer for the desktop also and nothing.

The latest version, June 24, 2025 I think, of thunderbird on my desktop 128.11.1esr will not retrieve messages from centurylink's SMPT server and gives a pop-up window with "Login to server pop.centurylink.net with username orgates@centurylink.net failed." I have no problem manually logging into centurylink and did not change anything on my thunderbird end. Also, I cannot add a centurylink account to thunderbird either.

On Firefox, I can't use a chatbot because it says Speech recognition is not supported in this browser. This is my own new website that has a chatbot in it to help people out. I'm trying to test it. It works fine on Chrome and Safari but not on Firefox? Why? I have an IMac computer and my software and operating systems are up to date. Firefox is currently my default browser, but that may have to change, if this can't be corrected. Thanks!