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Error code: sec_error_ocsp_invalid_signing_cert

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Error code: sec_error_ocsp_invalid_signing_cert

Postby chicagotech » Mon Oct 16, 2017 10:53 am

Situation: Firefox has a problem to access a security website with this message: (Invalid OCSP signing certificate in OCSP response(Error code: sec_error_ocsp_invalid_signing_cert). Other web browser doesn't have this problem.

ocsp is an advanced security feature in firefox - this error needs to be fixed by the web site in question, so please also contact their support channels and report the issue.

you can temporarily work around the issue and turn off ocsp stapling: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named security.ssl.enable_ocsp_stapling. double-click it and change its value to false.
since this will slightly lower your security, it is important however, that after a bit of time when the issue gets resolved by the site (maybe try again in 24 hours), you go back and switch the setting to "true" again!
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