{
  "prefbar:info": {
    "formatversion": 3
  },
  "prefbar:menu:enabled": {
    "items": [
      "prefbar:button:minimumfontsize"
    ]
  },
  "prefbar:button:minimumfontsize": {
    "type": "extcheck",
    "label": "Min Font Size",
    "getfunction": "value = (goPrefBar.GetPref(\"font.minimum-size.x-western\") != 0)",
    "browserbtnupdatefor": "false",
    "setfunction": "const sizepref = \"font.minimum-size.x-western\";\nconst storepref = \"extensions.prefbar.buttons.minimumfontsize.lastsize\";\n\n// Checkbox checked\nif (value)\n  goPrefBar.SetPref(sizepref, goPrefBar.GetPref(storepref));\n// Checkbox unchecked and value in pref not zero\nelse if (goPrefBar.GetPref(sizepref) != 0) {\n  goPrefBar.SetPref(storepref, goPrefBar.GetPref(sizepref));\n  goPrefBar.SetPref(sizepref, 0);\n}"
  }
}