How to add trusted sites in Mozilla Firefox?

*Trusted sites to Allow*

https://*.sap.com      

https://*.successfactors.eu

https://*.plateau.com

https://*.sapjam.com

https://performancemanager.successfactors.eu

https://saplearninghub.plateau.com

https://*.icontent.plateau.com

https://*.icontent-entitlement.plateau.com

https://*.icontent-entitlement-eu.plateau.com

https://programsearchprod.cfapps.eu10.hana.ondemand.com