title: Firefox bug with Selenium - Can't access dead object
body: <p>I've tried to run my tests with Selenium 2 and Firefox 19. One of this tests causes an error "ERROR: Command execution failure. The error message is: can't access dead object".</p>
  
  <p>I'm reading about it, it seems like a bug in newest Firefox's versions. Lot of people have the same issue, but I've not found anything really clear. </p>
  
  <p>Any heroe can help us? Maybe we just need to change something in "about:config"?</p>
  
  <p>Regards</p>