OCSP Evaluator
Checks OCSP/CRL revocation of the site certificate directly in Firefox
Is the certificate of this site revoked? OCSP Evaluator checks it directly from your browser with OCSP and CRL, at the authority that issued it, with verified response signatures and no third-party server.
Version 1.0 is a complete rewrite: the old version sent the visited domain to an external API, the new one does everything locally in Firefox (desktop and Android).
Install from Mozilla Add-ons: https://addons.mozilla.org/firefox/addon/ocsp-evaluator/