Hi Team, This is with regard to Firefox proxy setting issue, after applying new proxy details via our Active directory GPO firefox is not responding to all SSL sites and error attached below for your reference. After applying proxy from our active directory our IE and chrome works fine but firefox browser mechanism is not working properly. As many of our users default web browser is set as firefox and we are having serious issue with proxy. HTTP sites are working fine with firfox browser but HTTPS is giving below error message. Need your valuable support on resolving this issue. Regards, Deepakraj M