diff --git a/addons/thunderbird/installer.py b/addons/thunderbird/installer.py
index 765f22f6187..7e6aac6f8c1 100644
--- a/addons/thunderbird/installer.py
+++ b/addons/thunderbird/installer.py
@@ -29,32 +29,20 @@ class thunderbird_installer(osv.osv_memory):
     _name = 'thunderbird.installer'
     _inherit = 'res.config.installer'
 
-    def process_plugin(self, cr, uid, ids, context):
-        """
-        Default Attach Thunderbird Plug-in File.
-        """
-        data = {}
-        file = open(config['addons_path'] + "/thunderbird/plugin/tiny_plugin-2.0.xpi", 'r')
-        data['plugin_file'] = base64.encodestring(file.read())
-        self.write(cr, uid, ids, data)
-        return False
-
-    def process_pdf_file(self, cr, uid, ids, context):
-        """
-        Default Attach Thunderbird Plug-in Installation File.
-        """
-        data = {}
+    def default_get(self, cr, uid, fields, context={}):
+        data = super(thunderbird_installer, self).default_get(cr, uid, fields, context)
         pdf_file = open(config['addons_path'] + "/thunderbird/doc/Installation Guide to OpenERP Thunderbid Plug-in.pdf", 'r')
         data['pdf_file'] = base64.encodestring(pdf_file.read())
-        self.write(cr, uid, ids, data)
-        return False
+        file = open(config['addons_path'] + "/thunderbird/plugin/tiny_plugin-2.0.xpi", 'r')
+        data['plugin_file'] = base64.encodestring(file.read())
+        return data
 
     _columns = {
         'name':fields.char('File name', size=34),
         'pdf_name':fields.char('File name', size=64),
         'thunderbird':fields.boolean('Thunderbird Module ', help="Allows you to select an object that you’d like to add to your email and its attachments."),
         'plugin_file':fields.binary('Thunderbird Plug-in', readonly=True, help="Thunderbird plug-in file. Save as this file and install this plug-in in thunderbir."),
-        'pdf_file':fields.binary('Thunderbird Plug-in Installation File', help="The documentation file :- how to install Thunderbird Plug-in.", readonly=True),
+        'pdf_file':fields.binary('Installation Manual', help="The documentation file :- how to install Thunderbird Plug-in.", readonly=True),
         'description':fields.text('Description', readonly=True)        
         }
 
diff --git a/addons/thunderbird/plugin/tiny_plugin-2.0.xpi b/addons/thunderbird/plugin/tiny_plugin-2.0.xpi
index 68aa5d2ea4c..ffb25365525 100644
Binary files a/addons/thunderbird/plugin/tiny_plugin-2.0.xpi and b/addons/thunderbird/plugin/tiny_plugin-2.0.xpi differ
diff --git a/addons/thunderbird/thunderbird_installer.xml b/addons/thunderbird/thunderbird_installer.xml
index 63359a830ab..6ee1f50e095 100644
--- a/addons/thunderbird/thunderbird_installer.xml
+++ b/addons/thunderbird/thunderbird_installer.xml
@@ -25,10 +25,8 @@
                   <newline/>
 
                   <field name="plugin_file" filename="name"/>
-                  <button name="process_plugin"  icon="gtk-execute" string="Get Plugin File" type="object"/>
                   <newline/>
                   <field name="pdf_file" filename="pdf_name"/>
-                  <button name="process_pdf_file"  icon="gtk-execute" string="Get Plugin Installation File" type="object"/>
                   <newline/>
                   <separator string="Thunderbird plugin installation note." colspan="4"/>
                   <field name="description" nolabel="1" colspan="8"/>