I saw many tutorials on making self-signed certificates get a lock sign of trusted certificate, which were installing the root certificate of authority in firefox which i did, and also installed in windows, i am using latest version of firefox developer edition, this is error i recieve:

Websites prove their identity via certificates. Firefox Developer Edition does not trust this site because it uses a certificate that is not valid for 192.168.0.102. The certificate is only valid for the following names: localhost, 192.168.0.102, 172.20.10.3