diff -u b/filefield_sources.js b/filefield_sources.js
--- b/filefield_sources.js
+++ b/filefield_sources.js
@@ -29,7 +29,7 @@
       // Add the active class.
       $(this).addClass('active');
       Drupal.fileFieldSources.updateHintText($fileFieldElement.get(0));
-    }).first().click();
+    }).first().triggerHandler('click');
 
     // Clipboard support.
     $fileFieldElement.find('.filefield-source-clipboard-capture')
diff -u b/filefield_sources.module b/filefield_sources.module
--- b/filefield_sources.module
+++ b/filefield_sources.module
@@ -314,20 +314,22 @@
  */
 function filefield_sources_info($include_default = TRUE) {
   // Cache the expensive part.
-  $cache = &drupal_static(__FUNCTION__);
-  if (!$cache) {
-    $default = array('upload' => array('name' => 'Upload', 'label' => 'Upload', 'description' => 'Upload a file from your computer.', 'weight' => -10));
-    $info = module_invoke_all('filefield_sources_info');
-    $info = $default + $info;
+  $cache = &drupal_static(__FUNCTION__, array());
+  if (empty($cache)) {
+    $cache['upload'] = array(
+      'name' => t('Upload (default)'),
+      'label' => t('Upload'),
+      'description' => t('Upload a file from your computer.'),
+      'weight' => -10,
+    );
+    $cache += module_invoke_all('filefield_sources_info');
 
-    drupal_alter('filefield_sources_info', $info);
-    uasort($info, '_filefield_sources_sort');
-
-    $cache = $info;
+    drupal_alter('filefield_sources_info', $cache);
+    uasort($cache, '_filefield_sources_sort');
   }
-  $info = $cache;
 
-  // Maybe don't include the 'upload' type.
+  // Remove the upload option from the returned value if needed.
+  $info = $cache;
   if (!$include_default) {
     unset($info['upload']);
   }
@@ -636,8 +638,11 @@
 }
 
 /**
- * Helper to return enabled sources for a field, to provide
- * backward compatibility for 'upload' type.
+ * Helper to return enabled sources for a field
+ *
+ * This provides backward compatibility for 'upload' type.
+ *
+ * @see http://drupal.org/node/932994
  */
 function _filefield_sources_enabled($settings) {
   if (!isset($settings['filefield_sources']['upload'])) {