File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/tabs/tab.js", line 71, in _onRead
   this._emit(EVENTS.ready.name, this._public);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 119, in _emi
   return this._emitOnObject.apply(this, args);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 149, in _emitOnObjec
   listener.apply(targetObj, params);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/windows/tabs.js", line 102, in _emitEven
   tabs._emit(type, tab);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 119, in _emi
   return this._emitOnObject.apply(this, args);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 149, in _emitOnObjec
   listener.apply(targetObj, params);
 File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/hdtransform/lib/main.js", line 6, in logUR
   alert(tab.url);

Each time I launch the program through terminal i get a serie of warnings when opening new tabs. Here they go: Traceback (most recent call last): File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/tabs/tab.js", line 71, in _onRead this._emit(EVENTS.ready.name, this._public); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 119, in _emi return this._emitOnObject.apply(this, args); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 149, in _emitOnObjec listener.apply(targetObj, params); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/windows/tabs.js", line 102, in _emitEven tabs._emit(type, tab); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 119, in _emi return this._emitOnObject.apply(this, args); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/api-utils/lib/events.js", line 149, in _emitOnObjec listener.apply(targetObj, params); File "resource://jid0-bn7bwjje8j1fsj00q6loa43avyq-at-jetpack/hdtransform/lib/main.js", line 6, in logUR alert(tab.url); ReferenceError: alert is not defined And it goes on and on and on. Any solution? thanks