diff --git a/wp-admin/js/cat.js b/wp-admin/js/cat.js
index e93adfc95..e697e9b40 100644
--- a/wp-admin/js/cat.js
+++ b/wp-admin/js/cat.js
@@ -4,7 +4,8 @@ function newCatAddIn() {
 	var jaxcat = $('jaxcat');
 	if ( !jaxcat )
 		return false;
-	Element.update(jaxcat,'<span id="ajaxcat"><input type="text" name="newcat" id="newcat" size="16" autocomplete="off"/><input type="button" name="Button" id="catadd" value="' + catL10n.add + '"/><input type="hidden"/><span id="howto">' + catL10n.how + '</span></span>');
+	// These multiple blank hidden inputs are needed: https://bugzilla.mozilla.org/show_bug.cgi?id=377815 , #3895 , #4664
+	Element.update(jaxcat,'<span id="ajaxcat"><input type="text" name="newcat" id="newcat" size="16" autocomplete="off"/><input type="button" name="Button" id="catadd" value="' + catL10n.add + '"/><input type="hidden"/><input type="hidden"/><span id="howto">' + catL10n.how + '</span></span>');
 	$('newcat').onkeypress = function(e) { return killSubmit("catList.ajaxAdder('category','jaxcat');", e); };
 	$('catadd').onclick = function() { catList.ajaxAdder('category', 'jaxcat'); };
 }
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index d059c5330..5bb381f65 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -104,7 +104,7 @@ class WP_Scripts {
 					'toggleKey' => __(', or press the enter key to %toggle% it'),
 				) );
 			}
-			$this->add( 'ajaxcat', '/wp-admin/js/cat.js', array('listman'), '20070417' );
+			$this->add( 'ajaxcat', '/wp-admin/js/cat.js', array('listman'), '20070724' );
 			$this->localize( 'ajaxcat', 'catL10n', array(
 				'add' => attribute_escape(__('Add')),
 				'how' => __('Separate multiple categories with commas.')