diff --git a/chrome/content/zotero/bindings/styled-textbox.xml b/chrome/content/zotero/bindings/styled-textbox.xml
index 0d646237d9..582efcdf8a 100644
--- a/chrome/content/zotero/bindings/styled-textbox.xml
+++ b/chrome/content/zotero/bindings/styled-textbox.xml
@@ -168,6 +168,13 @@
 				]]></setter>
 			</property>
 			
+			<!-- Sets or returns formatting (currently, HTML or Integration) of rich text box -->
+			<property name="initialized">
+				<getter><![CDATA[
+					return !!this._editor;
+				]]></getter>
+			</property>	
+			
 			<!-- Sets or returns formatting (currently, HTML or Integration) of rich text box -->
 			<property name="format">
 				<getter><![CDATA[
@@ -421,6 +428,11 @@
 								style.innerHTML = css;
 								head.appendChild(style);
 							}
+							
+							// Dispatch a tinymceInitialized event
+							var ev = document.createEvent('HTMLEvents');
+							ev.initEvent('tinymceInitialized', true, true);
+							self.dispatchEvent(ev);
 						};
 						onInitFunction.__exposedProps__ = {"apply":"r"};
 						editor.onInit.add(onInitFunction);
diff --git a/chrome/content/zotero/integration/addCitationDialog.js b/chrome/content/zotero/integration/addCitationDialog.js
index a3896b7f90..d7f7d3b051 100644
--- a/chrome/content/zotero/integration/addCitationDialog.js
+++ b/chrome/content/zotero/integration/addCitationDialog.js
@@ -565,6 +565,7 @@ var Zotero_Citation_Dialog = new function () {
 		if(_previewShown) {
 			document.documentElement.getButton("extra2").label = Zotero.getString("citation.hideEditor");		
 			if(text) {
+				_originalHTML = io.previewFunction();
 				editor.value = text;
 			} else {
 				_updatePreview();
@@ -623,7 +624,16 @@ var Zotero_Citation_Dialog = new function () {
 			
 			editor.readonly = !io.citation.citationItems.length;
 			editor.value = (io.citation.citationItems.length ? io.previewFunction() : "");
-			_originalHTML = editor.value;
+			
+			if(editor.initialized) {
+				_originalHTML = editor.value;
+			} else {
+				var eventListener = function() {
+					_originalHTML = editor.value;
+					editor.removeEventListener("tinymceInitialized", eventListener, false);
+				};
+				editor.addEventListener("tinymceInitialized", eventListener, false);
+			}
 		}
 	}