Do you experience the annoying “SEC_ERROR_UNKNOWN_ISSUER” error in Firefox? If you see the error: SEC_ERROR_UNKNOWN_ISSUER in Firefox, then Firefox tries to connect to a website that is not configured properly and only accepts HTST (HTTP Strict Transport Security) connections.
Sec_error_unknown_issuer Firefox Fix For Mac Windows 10
How to fix slow Mozilla Firefox on Windows 10: Firefox is one of the most popular browsers on Windows platform, but despite its massive popularity, Firefox still has certain issues on fix slow Mozilla Firefox on Windows 10.Many users are complaining that Firefox is slow on Windows 10, and this can be a major problem if you use fix Mozilla Firefox on Windows 10. Jan 20, 2020 Fixed a web compatibility issue with CSS Shadow Parts which shipped in Firefox 72 (bug 1604989) Fixed inconsistent playback performance for fullscreen 1080p videos on some systems ( bug 1608485 ) Developer. Home Wiki Problems & Issues How to Fix SECERRORUNKNOWNISSUER How to FIX SECERRORUNKNOWNISSUER On websites that need to be secured (the address starts with 'https: //'), Firefox must verify that the certificate provided by the website is valid.
As a results it not possible to add an exception for this certificate.
In this article, I will give you instructions on how to fix the SEC_ERROR_UNKNOWN_ISSUER error in Firefox.
Read on and follow the step-by-step instructions.
How to fix SEC_ERROR_UNKNOWN_ISSUER error in Mozilla Firefox
Open the Firefox browser, in the address – navigation – bar type: about:config. Accept the risk and continue to the configuration settings in Firefox.
Search for value: security.enterprise_roots.enabled. Change security.enterprise_roots.enabled setting from False to True by double-clicking the security.enterprise_roots.enabled setting.
As you see it is fairly simple to fix the SEC_ERROR_UNKNOWN_ISSUER error message in Firefox. But hey! Who doesn’t like simple fixes?
Reload the website you were getting the SEC_ERROR_UNKNOWN_ISSUER from and try again. The SEC_ERROR_UNKNOWN_ISSUER error in Firefox is now gone!
Sec_error_unknown_issuer Firefox Fix Mac
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