Untitled

// skip 1st line
try {
  
  let {
  classes: Cc,
  interfaces: Ci,
  manager: Cm,
  utils: Cu
  } = Components;
  
  let cmanifest = Cc['@mozilla.org/file/directory_service;1'].getService(Ci.nsIProperties).get('UChrm', Ci.nsIFile);
  cmanifest.append('JS');
  cmanifest.append('utils');
  cmanifest.append('chrome.manifest');
  
  if(cmanifest.exists()){
    Cm.QueryInterface(Ci.nsIComponentRegistrar).autoRegister(cmanifest);
    Cu.import('chrome://userscripts/content/utils/boot.jsm');
  }

} catch(ex) {};