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I was on www.rt.com yesterday. Today, Firefox tells me I can't get on due to an expired certificate and won't let me bypass this warning. I don't believe this is a problem; I trust rt and I want to be able to bypass what I believe is overly sensitive security by Firefox. Without that, it amounts to censorship and I'm disappointed in Firefox.

Secure Connection Failed

An error occurred during a connection to iniatedgilyntain.com. SSL received a record that exceeded the maximum permissible length.

Hi; I use Firefox on my phone and my laptop both. In my laptop (Lecoo pro 14, Ubuntu 26.04) in a domain range browser gives me security alarm and don't let me get in. This is normal but when I use other browser in my laptop or Firefox on my phone (s25 ultra) there is no problem at all and it works well! I tried all things. run commands like: sudo snap remove --purge firefox | sudo snap install firefox, sudo apt search firefox/mozilla and than reinstall all installed packages and clear all caches on settings. But none of them worked. Thanks for your responsibility and making such great open-source app.

When clicking on Mycentury link, Mycenturylink bill, I get HTTP:1.1 Service not available and in the address line, this, along with "not secure". https://eam.centurylink.com/eam/entryPoint.do What do I do to resovle this?

I get this message when trying load SingPass QR Code: "Secure Connection Failed. An error occured during a connection to track.file.gov.sg. SSL received a record that exceeded the maximum permissible length."

Secure certificate error so can't login to my password manager. This has happened since recent Firefox upgrade Here is code I was to send 18.85a12b17.1791472550.7f9ca3b0

Be careful. Something doesn’t look right.

Firefox spotted a potentially serious security issue with mail.pgsolusi.com. Someone pretending to be the site could try to steal things like credit card info, passwords, or emails.

mail.pgsolusi.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

you are blocking "entry.ostralia.cc" saying the ssl is expired....

BUT SSLCHECKER link text shows it's OK ! and all other browsers allow it...

you could at least allow me to access it under the 'advanced' option like in earlier days...

( the Host provider has mixed up billing for the 3 SSLs on my site , but all 3 are active and valid SSLs...)

Gesicherte Verbindung fehlgeschlagen Die Website kann nicht angezeigt werden, da die Authentizität der erhaltenen Daten nicht verifiziert werden konnte Fehlercode: PR_END_OF_FILE_ERROR

I am unable to access my usual sites such as @creates or Civil service.Gov.UK or Civil Service Jobs - GOV.UK I am getting this message when I attempt to:

Firefox detected a potential security threat and did not continue to atcreates.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

"civilservicejobs.service.gov.uk has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site. The issue is most likely with the web site, and there is nothing you can do to resolve it."

Advance provides: Someone could be trying to impersonate the site and you should not continue.

Web sites prove their identity via certificates. Firefox does not trust civilservicejobs.service.gov.uk because its certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates.

Error code: SEC_ERROR_UNKNOWN_ISSUER

View Certificate

These are ligit websites that I need for work. Heeeelp!

I keep getting a messages anytime I try to visit a site which I have been to before? here's an example

"mail.aol.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site."

In the last few months, FireFox (accesed from Roamnia, on Firefox an a MacOS 26, both always updated to the latest available final version) has been showing the error: “Be careful. Something doesn’t look right. Firefox spotted a potentially serious security issue with e360.yale.edu. Someone pretending to be the site could try to steal things like credit card info, passwords, or emails. Advanced What makes the site look dangerous? Sites use certificates issued by a certificate authority to prove they’re really who they say they are. Firefox doesn’t trust this site because it looks like the certificate expired on 14/08/2026. What can you do about it? Your device’s clock is set to 22/09/2026. If this is correct, the security issue is probably with the site itself. If it’s wrong, you can change it in your device’s system settings. View the site’s certificate Learn more about troubleshooting time-related errors Error Code: SEC_ERROR_EXPIRED_CERTIFICATE 22 Sept 2026 08:34:11 EEST“ On perfectly innocent sites. Two examples: FAIR.org does not load beyond the initial “Home” page; e360.yale.edu/ shows the warning instead of accessing the homepage. This is annying, possibly wrong and, as any false security warning, potentially dangerous. Please help.