Thunderbird plugin installation:

• 1. Save the Thunderbird plug-in.
• 2. From the Thunderbird menubar: Tools ­> Add-ons -> Screwdriver/Wrench Icon -> Install add-on from file...
• 3. Select the plug-in (the file named openerp_plugin.xpi).
• 4. Click "Install Now".
• 5. Restart Thunderbird.
• 6. From the Thunderbird menubar: OpenERP -> Configuration.
• 7. Configure your openerp server.