ein nettes Hallo,

seit einiger Zeit habe ich Probleme das Firefox die Verbindung zum Internet verliert. Andere Browser wie zum Beispiel Google haben diese Probleme nicht. Ich habe Firefox neu installiert, den Cash geleert und auch schon mit dem Fehlerprogramm von euch laufen lassen, es wird nicht besser, vielleicht kennt ihr noch eine Lösung die mir helfen kann...

Beste Grüße,

Axel Lulies

All of a sudden my comcast.net email is no longer accessible through Thunderbird,it claims I'm not using the correct password, even though none of the settings have changed. I can still access my email through webmail, using the same password. What's happened? and how can it be corrected thank you

Bonjour,

Depuis plusieurs semaine ce problème survient.

"Le certificat pour imap.gmail.com:993 ne provient pas d’une source sûre".

Ce problème, uniquement sur l'ordinateur avec windows 11. Sur le GSM pas de problèmes.

D'avance merci pour votre réponse. Cl. BERNARD

Courriel: [edited]@gmail.com

Hello,

This problem has been occurring for several weeks.

"The certificate for imap.gmail.com:993 is not from a trusted source."

This problem only occurs on my computer running Windows 11. There are no problems on my mobile phone.

Thank you in advance for your reply.

Cl. BERNARD

Email: [edited]@gmail.com

I have two different email accounts in Thunderbird. One is a Gmail account one is from Comcast.net. When I start Thunderbird it checks Gmail fine, but then I get a little pop up in the lower left-hand corner it says Comcast has blacklisted my IP. After a few more seconds a dialogue box pops up asking for my password. When I type in my password I get the same crap over and over.

I know my IP is not blacklisted because I can log on to my Comcast account in a browser no problem same IP. What's going on, do you think I picked up some sort of malware? I've scanned I can't find anything.

Michael Butler michael.butler101@comcast.net

Setup: macOS Tahoe (26.4) and Firefox 149.0

=

Behavior: Out of the blue this morning, every website I try to visit in Firefox returns "Looks like there’s a problem with this site". Every other browser works fine.

Things I've tried, that haven't fixed it: - Ruled Out DNS: Sites like 1.1.1.1 and my home router's IP return the same issue in Firefox, but also resolve in any other browser. - Firefox Safe Mode: no fix - Deleted All Settings, Reinstalled Fresh: - Removed the Firefox App, deleted:

       - ~/Library/Application\ Support/Firefox
       - ~/Library/Caches/Mozilla
       - ~/Library/Caches/Firefox

...and then downloaded and installed 149.0 fresh. - Refreshed Firefox (via [link] - about:preferences (toggled between FALSE and TRUE, testing each time) via this YouTube video

- network.dns.disableIPv6

- network.dns.disablePrefetch
- network.dns.disablePrefetchFromHTTPS
- network.dns.disable

....and in desperation, I checked my Mac for Malware (clean)

I'm at a complete loss: every other browser works, but Firefox is a 100% fail for all websites. Any thoughts?

My hotspot is constantly disconnected by Firefox. I have the latest browser. And if this cant be sorted Ill have to go back to google. Its a nighmare. Firefox keeps giving me a wired connection

I've been trying to connect for over an hour and I always get the answer; " Connection to the server impossible. The configuration, username or password are probably incorrect. My access provider is “Orange” and I made the mistake of accepting “Unlimited Emails”, I have 650,000… I work on a MacBook Pro Apple M1 Pro 26.3.1 (a) and the Mail app is very saturated and Tchat Gpt advised me to use your “Thunderbird” app I changed my Orange access password about 4 hours ago. Please guide me towards making your application work properly.

how do i delete or remove the message about could connect error

Contributor note: See also /questions/1576275 for the detailed error message.

Hey,

after looking through many Forums and solutions on the internet, nothing can resolve my issue, so i hope this one can help. I just switched to Firefox and have the reaccuring problem, that i cannot load sites, that are located in my local network (e.g. homeassistant.local; 192.168.8.265:2283).

I always get a "server not found" error from firefox and the certificate information, that i am communicating through an unsecured connection (haha, yes good joke firefox. I know my local services do not all have an SSL certificate.) I already tried altering settings for Proxy, DNS over https, MACos Safety settings but nothing helps. I am jsut looking for that one "trust this domain" button, that i get on 'ALL OTHER BROWSERS like Chrome, Safari and Edge...

P.S.: All the services are up and running and i can reach them through any other Browser.

Over the last week or so, selecting a link embedded within an incoming email on Thunderbird does not now ensure that the desired webpage will be opened in Safari and other browsers. Shutting down Thunderbird, intermittently enables the proper functional activity of opening the desired webpage. I've discussed this with Apple (iMac; Sequoia 15.7.5) and was unable to identify this as an Apple problem.

Je n'arrive plus à me connecter, voici le message d'erreur "Échec de la connexion depuis le serveur imap.sfr.fr avec le nom d’utilisateur beaudonnat.jean-luc@neuf.fr. Pouvez-vous me dire ce qu'il faut faire pour me connecter. A savoir j'ai changé mon mot de passe mais celui-ci ne me permet toujours pas d'accéder à mes mails.

Hi, as of 14/4/26 my K9 (Samsung mobile) and Thunderbird (Mac Pro) no longer works with my bt internet account. Cannot receive or send emails. Have checked both in and outgoing server settings and all agree with bts advised settings. When I attempt to fetch in K9 I get error “network error readstringuntil():end of stream reached. Read:””while waiting for’’. When I attempt to send get message “unknown error unexpected end of stream. Contacted BT and they told me all my settings were good. I suspect something has changed at the BT server end. They did say they had relocated?? Any one else suffering this?

When I receive an email that includes a live link it does not work when I click on it. Instead I get a popup error message that says "Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."

I can sometime manage to copy the link address and paste it into a browser but this is not always successful.

i have a problem in the connection we need to have remote session

• Client : Mozilla Thunderbird (version utilisée) • Serveur SMTP : smtp-mail.outlook.com • Port : 587 • Sécurité : SSL/TLS • Authentification : OAuth2 • Message d’erreur exact indiquant un timeout / échec de connexion SMTP • Confirmation que : o le compte fonctionne en webmail o le service Microsoft est accessible o le problème persiste malgré un changement de réseau (si testé)

Receive the following error message whenever I attempt to reply to or forward an e-mail

"Send Message Error. Sending of the message failed. The message could not be sent because the connection to the Outdoing server (SMTP) mail.thorneplumbing.com timed out. Try again"

This has been going on for some time now, but does not happen when I use Thunderbird on my i-phone. Just on a PC. Please advise.

Thank you!

I get the error "connection to server pop-server.triad.rr.com was reset" when running Thunderbird and then I get no email.

Don't know if it is relevant but I did try VPN beta in Thunderbird some time before the above error happened.

Regards Tom

PS I can't get any email if you respond to me there.

Recently switched ISPs to a fiber internet company. After the switch, now whenever I try access my comcast email tunderbird gives me a message that my IP is temporarily blacklisted. I get two messages. One is a windows notification that says the blacklisted message, and then a popup message from tunderbird that it cannot log in. I have contacted my ISP to ask them what's up with the blacklist, but what's weird is that I can seem to access these accounts fine through Outlook, which would seem to indicate that there is some issue with tunderbird. I'd really rather use tunderbird than outlook. Can somebody help me with this?

The few articles I could find on this all suggest changing the IPv6 setting but I checked that and it is already set to what they suggest.

I tried deleting the account and recreating it in tunderbird, but it won't go through it says it can't log into the account.