--- a/mobile/android/base/java/org/mozilla/gecko/GeckoSmsManager.java
+++ b/mobile/android/base/java/org/mozilla/gecko/GeckoSmsManager.java
@@ -1109,16 +1109,19 @@ public class GeckoSmsManager
         try {
           ContentResolver cr = GeckoAppShell.getContext().getContentResolver();
           Cursor cursor = cr.query(kSmsThreadsContentUri,
                                    kThreadProjection,
                                    null,
                                    null,
                                    "date DESC");
           if (cursor == null || !cursor.moveToFirst()) {
+            if (cursor != null) {
+              cursor.close();
+            }
             notifyCursorDone(mRequestId);
             return;
           }
 
           MessagesListManager.getInstance().add(mRequestId, cursor);
 
           getThreadFromCursorAndNotify(cursor, mRequestId);
         } catch (Exception e) {