System Requirements Web authors should be aware that Kentico requires certain versions of browsers be installed. The following are minimum browser requirements: Firefox Internet Explorer 8 and above Chrome (versions 12-41) Safari For the current version of Kentico (v 7), Firefox is the preferred browser for PC users. Mac users may choose to use either Firefox or Safari. Kentico requires that Silverlight version 5 and above be installed on your machine. If you are not an administrator on your machine, you must request this be done either through your IT support team or via the ISD Help Desk. Note that beginning with version 42, Chrome is no longer supporting Silverlight.