Error sec_error_inadequate_key_usage when using HTTPS in Firefox
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After a recent update of my Firefox browser, I wasn’t able to connect to SSL encrypted websites using HTTPS anymore. I got the following error code: sec_error_inadequate_key_usage The solution was to set security.use_mozillapkix_verification to false under about:config. For an explanation, please see: Exciting Updates to Certificate Verification in Gecko and…