Unity has fixes ready to go, and Valve has released an updated version of Steam, too.

The main cause of the problem is that most leading browsers ended support for NPAPI plugins which were initially used by Unity Web player. Now, the player itself has shifted to WebGL technology. If ...

Unity is set to end support for Web Player as browser vendors move away from plug-ins. Google, Microsoft and Mozilla are all ending support for plug-ins in Chrome, Edge and Firefox. A lack of support ...