Firefox Community Forum

Hello all. I have just received an update for Windows 11, and I believe that it is broken. I cannot go to various sites or login to Gmail, as Firefox either will not let me, or will only after I press the "advanced" button, and then click on "accept the risk & continue." I am getting a confusing error screen, have x2 screenshots showing it, & would like to fix this. But how? I cannot tell if the issue is due to a security certificate, or a misconfiguration. It says to check my PC's clock, which is fine. It seems all websites are misconfigured now or so it says. Is anyone familar with this, please? I'm typing this on my S24 because I can't from my PC. I have an HP Windows 11 laptop. This did not happen until today, when the update went through. Thank you. I have tried to download both pictures, but this site is not letting both download. Hopefully they will, eventually.

Since the latest upgrade to Firefox, no windows will refresh or open. They all return with the 'Warning: Potential Security Risk Ahead' screen...and that includes mozilla.org. Currently accessing through the Duck.Duck.Go browser and all webpages copied open without problem. I run Nord VPN and the problem persists regardless of whether it is active.

unable to play games on pch.com. Apparently firefox has a certificate problem with pch.com.

Hi,

I work in a technical profession where we have large amounts of GUI-configurable equipment. Firefox was my go-to browser to configure and maintain this equipment. Up until today, when version 140 installed unexpectedly.

There is no https in this equipment, no certificates, no certificate server, no DNS. Just a LAN cable, peer to peer, to use the browser as a GUI to manage the equipment. There is no need for high level security either, since there is no internet.

Now how do I do this? In previous versions of Firefox it was possible to override the security warning and proceed anyway, which is what we did. Now we don't get the option to override, and it does not appear there is any way to change this behavior in the settings. This heavy handed nanny stuff does not sit well with me and it has made Firefox 140 essentially useless for my purposes. I've rolled back to a previous version of Firefox for now.

Hi folks,

From time to time, the button "accept the risk and continue" for a selsigned certificate (= generated locally using openssl, mkcert tools, etc) appears and sometimes not.

When the button is not displayed, then we got as error "SEC_ERROR_UNKNOWN_ISSUER". My question is then: "When SEC_ERROR_UNKNOWN_ISSUER is returned for selsigned certificate or not ?" Is there a way to debug and got a more verbose message to troubleshoot ?

Many thanks

Charles M.