diff --git a/Casks/firefox-esr-cn.rb b/Casks/firefox-esr-cn.rb
index a21cea036..419cbac5b 100644
--- a/Casks/firefox-esr-cn.rb
+++ b/Casks/firefox-esr-cn.rb
@@ -1,10 +1,18 @@
 cask :v1 => 'firefox-esr-cn' do
-  version '38.0.1'
-  sha256 '01ce3fde0c70388f5ac432bc745f474bd5b2ab76556d687c636224f31d3bd952'
+  version '38.2.1'
+  sha256 'd3338916985f96e81d4e04b41e50a40dc4d14ced7fded2995165ead38be63086'
 
   url "https://download.mozilla.org/?product=firefox-#{version}esr-SSL&os=osx&lang=zh-CN"
+  name 'Firefox'
+  name 'Mozilla Firefox'
   homepage 'https://www.mozilla.org/zh-CN/firefox/organizations/'
   license :mpl
-
+  tags :vendor => 'Mozilla'
+  
   app 'Firefox.app'
+  
+  zap :delete => [
+                  '~/Library/Application Support/Firefox',
+                  '~/Library/Caches/Firefox',
+                 ]
 end