Response received from STMM using preference set review2_demo2.json:

[
  {
    "name": "EasyOne Communicator Windows",
    "id": "trace.easyOne.communicator.windows",
    "contexts": {
      "OS": [
        {
          "id": "win32",
          "version": ">=5.0"
        }
      ]
    },
    "settingsHandlers": [
      {
        "type": "gpii.settingsHandlers.noSettings",
        "settings": {}
      }
    ],
    "lifecycleManager": {
      "start": [
        {
          "type": "gpii.launch.exec",
          "command": "\"${{environment}.PROGRAMFILES(x86)}\\Mozilla Firefox\\firefox.exe\" http://easy1234.org/user/${{userT
oken}}"
        }
      ],
      "stop": [
        {
          "type": "gpii.launch.exec",
          "command": "${{environment}.SystemRoot}\\System32\\taskkill.exe /im firefox.exe"
        }
      ]
    }
  }
]