Unable to make java configuration for DSC-EPFO unified portal for KYC

I am using Microsoft Windows XP Professional Version 2002 Service pack 2.
And i am unable to make java configuration for DSC-EPFO unified portal for KYC Approve. Kindly help me to find out the solution for java config with mozilla firefox web browser. I will be really thankful to you.

Dear Sir,
Install Java 8 update 121 and verify it using mozilla firefox esr 52.0
in java exception site settings add epfo website links and then go for dsc signing .
alternatively u can use esign

Dear Mr Mithun, Please opt for "Introduction of e-Sign at Unified Portal" you can approve KYC with OTP to Mobile Registered in Aadhaar Portal.This is helpful than trying to approve with Digital Signature