const XULAPPINFO_CONTRACTID = "@mozilla.org/xre/app-info;1"; const XULAPPINFO_CID = Components.ID("{4ba645d3-be6f-40d6-a42a-01b2f40091b8}"); var Cc = Components.classes; var Ci = Components.interfaces; var Cr = Components.results; function registerManifests(manifests) { var reg = Components.manager.QueryInterface(Ci.nsIComponentRegistrar); for (var manifest of manifests) reg.autoRegister(manifest); }