title: What aspects of a Web Browser should be configurable via plugins?
body: <p>I'm looking at this from the perspective of the plugin developer not the user of the browser, so I'm interested in what developers think is the ideal interface for plugins to a browser.  For example:  Plugins can reorder, create and destroy Tabs, Plugins can draw behind and in front of Browser pages etc.</p>
  
  <p>I'm particularly concerned about the security aspects</p>