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Error code: SEC_ERROR_INADEQUATE_KEY_USAGE

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

mkroslak91
mkroslak91
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Hello,

I would like to ask you about error code that I got after last firefox upgrade to 78.3.1esr (64-bit). Everytime I go to certain websites I get this error message:

Error code: SEC_ERROR_INADEQUATE_KEY_USAGE

Please, can someone advise about this? I do not see any known bug with this code. I did not have this problem before this upgrade.

Thank you, Martin

Hello, I would like to ask you about error code that I got after last firefox upgrade to 78.3.1esr (64-bit). Everytime I go to certain websites I get this error message: Error code: SEC_ERROR_INADEQUATE_KEY_USAGE Please, can someone advise about this? I do not see any known bug with this code. I did not have this problem before this upgrade. Thank you, Martin

All Replies (2)

FredMcD
FredMcD
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From my research, it looks like a certificate issue. https://www.bing.com/search?q=SEC_ERROR_INADEQUATE_KEY_USAGE


There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.

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

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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See:

  • Bug 1590217 - FF presents SSL Error: SEC_ERROR_INADEQUATE_KEY_USAGE