Disable Thunderbird to forward email with Full header

How do I turn off or disable Thunderbird to forward email with full header?

-------- Original Message --------
Return-Path:     sender email
X-Original-To:     receipient email
Delivered-To:     receipient email
Received:     from server (unknown [ip]); date
Message-ID:    
Date:    
From:    
User-Agent:     Thunderbird version (Windows)
MIME-Version:     1.0
To:    
CC:    
Subject:    
References:    
In-Reply-To:    
Content-Type:     multipart/alternative; boundary="------------"
X-Spam-Status:     No, No

Just goto Menu bar:
View -> Headers, choose Normal.

Then try Forward or Reply message, it will not show email headers.