In the Google Chrome Content settings there was "Key generation" option to generate keys in the web forms. See the screenshots from the question about Key generation. This is required by one Comodo SSL re-seller. Without it I can not generate my SSL certificates.
I am using Google Chrome versions 57.0.2987.98 and 57.0.2987.110 (64-bit). And the setting is now gone. When I try to issue the SSL, Comodo website shows "Sorry, an error has occurred" without any details.
How to get Key generation back to Google Chrome?