Google Chrome has a similar but slightly different version of it, with its message reading “ERR_SSL_VERSION_OR_CIPHER_MISMATCH“. Unlike other browser errors, the SSL_ERROR_NO_CYPHER_OVERLAP error happens specifically with Firefox. The “SSL_ERROR_NO_CYPHER_OVERLAP” error occurs when your browser is unable to obtain the security data for a website you’re trying to access. What Is The “SSL_ERROR_NO_CYPHER_OVERLAP” Error? Bypass Security Protocols and Configurations of Your Browser
What Is The “SSL_ERROR_NO_CYPHER_OVERLAP” Error?.