diff --git a/chrome/content/zotero/xpcom/connector/translate_item.js b/chrome/content/zotero/xpcom/connector/translate_item.js
index 3ff601d7a..3820272a6 100644
--- a/chrome/content/zotero/xpcom/connector/translate_item.js
+++ b/chrome/content/zotero/xpcom/connector/translate_item.js
@@ -468,10 +468,13 @@ Zotero.Translate.ItemSaver.prototype = {
 								doc = (new DOMParser()).parseFromString(result, "text/html");
 							} catch(e) {}
 							
-							// If DOMParser fails, use document.implementation.createHTMLDocument
+							// If DOMParser fails, use document.implementation.createHTMLDocument,
+							// as documented at https://developer.mozilla.org/en-US/docs/Web/API/DOMParser
 							if(!doc) {
 								doc = document.implementation.createHTMLDocument("");
 								var docEl = doc.documentElement;
+								// AMO reviewer: This code is not run in Firefox, and the document
+								// is never rendered anyway
 								docEl.innerHTML = result;
 								if(docEl.children.length === 1 && docEl.firstElementChild === "html") {
 									doc.replaceChild(docEl.firstElementChild, docEl);
diff --git a/chrome/content/zotero/xpcom/quickCopy.js b/chrome/content/zotero/xpcom/quickCopy.js
index 2cc6d0cd3..604b195aa 100644
--- a/chrome/content/zotero/xpcom/quickCopy.js
+++ b/chrome/content/zotero/xpcom/quickCopy.js
@@ -233,6 +233,8 @@ Zotero.QuickCopy = new function() {
 				for (var i=0; i<notes.length; i++) {
 					var div = doc.createElement("div");
 					div.className = "zotero-note";
+					// AMO reviewer: This documented is never rendered (and the inserted markup
+					// is sanitized anyway)
 					div.insertAdjacentHTML('afterbegin', notes[i].getNote());
 					container.appendChild(div);
 					textContainer.appendChild(textDoc.importNode(div, true));