diff --git a/chrome/content/zotero/xpcom/search.js b/chrome/content/zotero/xpcom/search.js
index a351ed73c9..fde3ab0dd1 100644
--- a/chrome/content/zotero/xpcom/search.js
+++ b/chrome/content/zotero/xpcom/search.js
@@ -2383,6 +2383,7 @@ Zotero.SearchConditions = new function(){
 			return Zotero.getString('searchConditions.' + str)
 		}
 		catch (e) {
+			Zotero.debug("String not found for searchConditions." + str, 2);
 			return Zotero.ItemFields.getLocalizedString(null, str);
 		}
 	}
diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index da8c65f7d7..7d6f652a71 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -1447,8 +1447,10 @@ Components.utils.import("resource://gre/modules/Services.jsm");
 			if (e.name == 'NS_ERROR_ILLEGAL_VALUE') {
 				Zotero.debug(params, 1);
 			}
-			Components.utils.reportError(e);
-			Zotero.debug(e, 1);
+			else if (e.name != 'NS_ERROR_FAILURE') {
+				Components.utils.reportError(e);
+				Zotero.debug(e, 1);
+			}
 			throw ('Localized string not available for ' + name);
 		}
 		return l10n;