If the Unity Web Player is installed but not working in Chrome or Firefox on your Windows PC, then please read this article for the resolutions.

NexPlayer for Unity is a multiscreen streaming player easy to integrate into Android, PC and iOS Unity apps, supporting both standard and 360 videos and delivering the best quality across all devices.

As a Unity Verified Solutions Partner, NexPlayer enables its users to easily update and deliver video content to players by simply changing the source URL.