Examine source code of Memory Rush

{
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  "name": "__MSG_extensionName__",
  "version": "1.0",
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  "permissions": [],
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    "default_popup": "popup.html",
    "default_icon": {
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "rossrourkzzaha219@gmail.com"
    }
  }
}