diff --git a/addons/thunderbird/thunderbird_installer.xml b/addons/thunderbird/thunderbird_installer.xml
index 59e0cc4f604..4f923cd7ac5 100644
--- a/addons/thunderbird/thunderbird_installer.xml
+++ b/addons/thunderbird/thunderbird_installer.xml
@@ -23,7 +23,6 @@
                   <field name="name" invisible="1"/>
                   <field name="pdf_name" invisible="1"/>
                   <newline/>
-
                   <field name="plugin_file" filename="name"/>
                   <button name="process_plugin"  icon="gtk-execute" string="Get Plugin File" type="object"/>
                   <newline/>
@@ -71,11 +70,15 @@
                        <group colspan="8">
                            <separator string="Thunderbird" colspan="4"/>
                            <field name="thunderbird"/>
-                           <field name="name" invisible="1"/>
-                           <newline/>
-                           <field name="plugin_file"/>
-                           <button name="process_plugin"  icon="gtk-execute" string="Get Plugin File" type="object"/>
-                           <newline/>
+		                   <field name="name" invisible="1"/>
+		                   <field name="pdf_name" invisible="1"/>
+		                   <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"/>
                            <label colspan="8" string="Save The thunderbird plug­in Follow the following step to install thunderbird plug­in ? 1. From Menu Bar, Open Tools ­> Add ons. 2. Now click on install button and a browser window will appear. 3. Just select the (.xpi) file from thunderbird/plugin directory and click ok, a new software installation window will appear and within a short time Install Now  button will be enabled. 4. Click on Install Now and restart Thunderbird. 5. Now Thunderbird plug­in is installed."/>
                        </group>