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SEC_ERROR_UNKNOWN_CRITICAL_EXTENSION

  • 5 majibu
  • 1 ana tatizo hili
  • 15 views
  • Last reply by colbarron

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I am getting the error SEC_ERROR_UNKNOWN_CRITICAL_EXTENSION on every page i open. I have looked around and tried to fix it using similar error messages but nothing has worked. I have uninstalled and reinstalled but nothing has worked.

Can anyone help me as there is nothing online that i can find that will fix this.

I am getting the error SEC_ERROR_UNKNOWN_CRITICAL_EXTENSION on every page i open. I have looked around and tried to fix it using similar error messages but nothing has worked. I have uninstalled and reinstalled but nothing has worked. Can anyone help me as there is nothing online that i can find that will fix this.

All Replies (5)

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Hi

Do you have an example of a website where this is happening?

Helpful?

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There's an unresolved discussion in an old thread.

https://support.mozilla.org/en-US/questions/1264964

Helpful?

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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 then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

Helpful?

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Tried all fixes on this and none work. Damn annoying.

Helpful?

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Just a quick update. I downloaded version 77 and it works fine. I then re-downloaded version 101.1 and it worked. although i got the error SEC_ERROR_UNKNOWN_ISSUER on all sites. I then followed another fix where i went to about:config then security.enterprise and changed this to true.

All good. Well so far!!

Helpful?

Uliza swali

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