{
  "prefbar:info": {
    "formatversion": 3
  },
  "prefbar:menu:enabled": {
    "items": [
      "prefbar:button:openaddonmanager"
    ]
  },
  "prefbar:button:openaddonmanager": {
    "type": "button",
    "label": "Add-ons",
    "onclick": "if (\"toEM\" in window)\n  toEM();\nelse if (\"BrowserOpenAddonsMgr\" in window)\n  BrowserOpenAddonsMgr();\nelse\n  goPrefBar.msgAlert(window, \"Your browser is not supported.\");"
  }
}