Unable to visit any websites - same SEC_ERROR_INADEQUATE_CERT_TYPE error
I was using Firefox 111.0.0 (64-bit) without any issues, for a few months. I have a few add-ons, but nothing crazy.
Last night I upgraded to 111.0.1 (64-bit). Now, I cannot open any website address at all. Yes, every single internet website is giving me the same error:
Secure Connection Failed An error occurred during a connection to xxxxxx. Certificate type not approved for application. Error code: SEC_ERROR_INADEQUATE_CERT_TYPE
I am a home PC user. I do not know anything about certifications and I am not running any custom settings or my own certificates. I am not doing a proxy or anything weird. My other web browsers have no issues.
I have tried: "resetting" Firefox function, removing all my add-ons, setting security.enterprise_roots.enabled, and other things Google search results suggested (from a different browser - like I said i cannot open any web page in Firefox). I can't even open Mozilla help pages that it tries to redirect me to.
I've been a firefox user for a decade but this is beyond frustrating. Please help, or i may just uninstall and move to another browser.
thanks,
すべての返信 (5)
Try these steps and rename to (cert_old) do not delete the cert file. https://comodosslstore.com/blog/ssl-errors-how-to-fix-ssl-certificate-errors-on-chrome-firefox.html#sslerrorfirefox
この投稿は jonzn4SUSE により に変更されました
I have tried that as well - I deleted the Cert8 file, didnt change anything. It got re-created as expected.
That would have been done again a second time anyway when I did the firefox "reset" function?
thanks
Where did you get Firefox from? Try a different version of Firefox and make sure to install in a different directory. https://www.mozilla.org/en-US/firefox/channel/desktop/#nightly
Are you using a proxy or VPN?
You can check the connection settings.
- Settings -> General -> Network: Connection -> Settings
If you do not need to use a proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.
See "Firefox connection settings":
- https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
- https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
- https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites
Boot the computer in Windows Safe Mode with network support to see if that has effect.
- https://www.bleepingcomputer.com/tuto.../how-to-start-windows-in-safe-mode/
- https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10/
You can do a malware scan just to be sure.
Sorry but all suggestions were either not applicable or did not work
I had to completely uninstall and reinstall, thus losing all my cookies, saved passwords, etc (I do not sign in with firefox account)
it was a disappointing issue with no solution