diff --git a/chrome/content/zotero/xpcom/connector/httpIntegrationClient.js b/chrome/content/zotero/xpcom/connector/httpIntegrationClient.js
index 406795c01..baa42f8d6 100644
--- a/chrome/content/zotero/xpcom/connector/httpIntegrationClient.js
+++ b/chrome/content/zotero/xpcom/connector/httpIntegrationClient.js
@@ -171,18 +171,11 @@ Zotero.HTTPIntegrationClient.Field.prototype.getText = async function() {
 Zotero.HTTPIntegrationClient.Field.prototype.setText = async function(text, isRich) {
 	// The HTML will be stripped by Google Docs and and since we're 
 	// caching this value, we need to strip it ourselves
-	if (isRich) {
-		var win = window;
-		if (!win) {
-			var wm = Services.wm;
-			var win = wm.getMostRecentWindow('navigator:browser');
-		}
-		var doc = new win.DOMParser().parseFromString(text, "text/html");
-		this._text = doc.documentElement.textContent;
-	} else {
-		this._text = text;
-	}
-	return Zotero.HTTPIntegrationClient.sendCommand("Field.setText", [this._documentID, this._id, text, isRich]);
+	var parser = Components.classes["@mozilla.org/xmlextras/domparser;1"]
+             .createInstance(Components.interfaces.nsIDOMParser);
+	var doc = parser.parseFromString(text, "text/html");
+	this._text = doc.documentElement.textContent;
+	return Zotero.HTTPIntegrationClient.sendCommand("Field.setText", [this._documentID, this._id, text, true]);
 };
 Zotero.HTTPIntegrationClient.Field.prototype.getCode = async function() {
 	return this._code;