If you want to see the whole thread in treeview without scrolling in the little box:

Install the Stylish add on: https://addons.mozilla.org/en-us/firefox/addon/stylish/
Go to AWIMB, and click on the Stylish icon in the toolbar
Click "Write new style" > For www.awimb.com

In the editor, paste:
HTML Code:
#posttree {height:100%;}
inside the curly brackets {}


The whole thing should look like this:

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

@-moz-document domain("www.awimb.com") {
  #posttree {height:100%;}
 
}
Save.