title: How to enable the eclipse internal browser (Ubuntu 12.10)?
body: <p>I have installed Eclipse 4.2 x64 on Ubuntu 12.10 x64. I need to use the internal web browser but it is disabled by default.</p>
  
  <p>The "Use internal web browser" radio button in preferences -> General -> web browser  is disabled.
  How can I enable it?</p>
  
  <p>I have installed Eclipse 4.2 x64 in another PC that uses Ubuntu 12.04 x64 and the internal browser works perfectly.</p>