From 610fad4657efd35f06014e4cee9016696c84b3e6 Mon Sep 17 00:00:00 2001
From: Anand Doshi <anand@erpnext.com>
Date: Mon, 8 Sep 2014 13:08:52 +0530
Subject: [PATCH] [minor] fixed firefox NS Unexpected Error

---
 frappe/public/js/frappe/ui/editor.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/frappe/public/js/frappe/ui/editor.js b/frappe/public/js/frappe/ui/editor.js
index f4d934ca4d..18e61e3605 100644
--- a/frappe/public/js/frappe/ui/editor.js
+++ b/frappe/public/js/frappe/ui/editor.js
@@ -384,7 +384,15 @@ bsEditorToolbar = Class.extend({
 		if (this.toolbar) {
 			$(this.toolbar).find('.btn[data-' + this.options.command_role + ']').each(function () {
 				var command = $(this).data(me.options.command_role);
-				if (document.queryCommandState(command)) {
+
+				// try catch for buggy firefox!
+				try {
+					var query_command_state = document.queryCommandState(command);
+				} catch(e) {
+					var query_command_state = false;
+				}
+
+				if (query_command_state) {
 					$(this).addClass(me.options.active_toolbar_class);
 				} else {
 					$(this).removeClass(me.options.active_toolbar_class);