Try restarting browser instead of killing process in mac

com.unity.perception/Editor/Pyrception/PyrceptionInstaller.cs

         EditorUtility.ClearProgressBar();
     }
 
-#if UNITY_EDITOR_WIN
     private static bool RestartBrowser()
     {
         currentProcessId = PlayerPrefs.HasKey("currentProcessId") ? PlayerPrefs.GetInt("currentProcessId") : -1;
         return false;
     }
 
-#elif UNITY_EDITOR_OSX
+#if UNITY_EDITOR_OSX
 
     private static void KillProcess()
     {