title: Add http header to all requests to GeckoFx
body: <p>I am trying to figure out a way to add a custom http header to all requests made through geckoFX. I tried to add a header using</p>
  
  <pre><code>GeckoMIMEInputStream strea=new GeckoMIMEInputStream();
  strea.AddHeader("head","val"); 
  geckoWebBrowser1.Navigate("http://google.com",GeckoLoadFlags.None,"",null,strea);
  </code></pre>
  
  <p>I need a way to add a custom header, to absolutely ALL requests made when going to a webpage.
  Thank you</p>