You are trying to change the ciphers used by the Enforce Server browser certificate, and have replaced the default list of ciphers with newer ones, and restarted services (as per suggestions in Receiving cipher errors when logging in to the Enforce console (broadcom.com).
However, after the services have restarted, your browser returns the following error which differs from the KB above:
Secure Connection Failed
An error occurred during a connection to localhost. Cannot communicate securely with peer: no common encryption algorithm(s).
Error code: SSL_ERROR_NO_CYPHER_OVERLAP
Supported versions of DLP
Firefox browser
The error originates from your internet web browser, because the ciphers as configured in your DLP Tomcat implementation are not matching the list of possible ciphers presented by your browser. Therefore, the page is not allowed to load and presents the error.
The ciphers listed in the server.xml file for Tomcat must be among those presented by the browser used to access the Enforce Server.
Verification of ciphers in your browser is outside the scope of Broadcom support, but instructions to access those available in Firefox are available in the "Additional Information" section below.
Of note:
To access the list of ciphers in Firefox, see instructions on this page: Configuration Editor for Firefox | Firefox Help (mozilla.org)