gistfile1.css

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("twitter.com") {
 div[data-component-term="user_recommendations"],
 div[data-component-term="trends"],
 div[data-component-term="footer"],
 .fullname{
  display: none !important;
 }
 
 .content-main {
  float: left !important;
 }
 
 .dashboard {
  float: right !important;
 }
}