Application.isWebPlayer
static var isWebPlayer: bool;
static bool isWebPlayer;
static isWebPlayer as bool
Description

Are we running inside a web player? (Read Only)

Returns true if the game is being run from the Unity web player.
	if (Application.isWebPlayer) {
		print("We are running this from inside of the web player!");
	}
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        if (Application.isWebPlayer)
            print("We are running this from inside of the web player!");
        
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		if Application.isWebPlayer:
			print('We are running this from inside of the web player!')