diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index b43372a03..b4e580efb 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -1433,9 +1433,19 @@ Zotero.Schema = new function(){
 				xmlnode.getElementsByTagName('priority')[0].firstChild.nodeValue
 			),
 			inRepository: true,
-			lastUpdated: xmlnode.getAttribute('lastUpdated')
 		};
 		
+		for each(var attr in ["configOptions", "displayOptions"]) {
+			try {
+				metadata[attr] = JSON.parse(xmlnode.getAttribute(attr));
+			} catch(e) {
+				Zotero.logError("Invalid JSON for "+attr+" in new version of "+metadata.label+" ("+translatorID+") from repository");
+				return;
+			}
+		}
+		
+		metadata.lastUpdated = xmlnode.getAttribute('lastUpdated');
+		
 		// detectCode can not exist or be empty
 		var detectCode = (xmlnode.getElementsByTagName('detectCode').item(0) &&
 					xmlnode.getElementsByTagName('detectCode')[0].firstChild)
diff --git a/chrome/content/zotero/xpcom/translation/translator.js b/chrome/content/zotero/xpcom/translation/translator.js
index 17b6fb853..b3f45b14e 100644
--- a/chrome/content/zotero/xpcom/translation/translator.js
+++ b/chrome/content/zotero/xpcom/translation/translator.js
@@ -181,6 +181,8 @@ Zotero.Translators = new function() {
 	 * @param	{String|Null}	metadata.target				Target regexp
 	 * @param	{String|Null}	metadata.minVersion
 	 * @param	{String}		metadata.maxVersion
+	 * @param	{String|undefined}	metadata.configOptions
+	 * @param	{String|undefined}	metadata.displayOptions
 	 * @param	{Integer}		metadata.priority
 	 * @param	{Boolean}		metadata.inRepository
 	 * @param	{String}		metadata.lastUpdated		SQL date
@@ -225,15 +227,8 @@ Zotero.Translators = new function() {
 		var destFile = Zotero.getTranslatorsDirectory();
 		destFile.append(fileName);
 		
-		var metadataJSON;
-		
 		// JSON.stringify (FF 3.5.4 and up) has the benefit of indenting JSON
-		if (typeof JSON != "undefined" && 'function' == typeof JSON.stringify) {
-			metadataJSON = JSON.stringify(metadata,null,8);
-		} else {
-			var nsIJSON = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
-			metadataJSON = nsIJSON.encode(metadata);
-		}
+		var metadataJSON = JSON.stringify(metadata,null,8);
 		
 		var str = metadataJSON + "\n\n" + code;