title: FireBug 1.7.3 still breaks on removed breakpoint
body: <p>There's a bug in FireBug: I accidentally clicked where the line numbers are, which sets a breakpoint.  So I clicked again to remove it.  Now it's breaking there every single time.  And I've tried setting/removing a breakpoint, but it doesn't work.  I've even tried clicking the pause icon, which I see suggested elsewhere, but it does nothing -- it doesn't even change.  I've even tried setting it to be a conditional breakpoint that is always false so it should never fire.  No cigar.  I even tried uninstalling FireBug and reinstalling it!</p>
  
  <p>(Please note that I am using FireBug 1.7.3 with FireFox 3.6.25, and have to for a reason, and cannot upgrade.)</p>
  
  <p>[I'd post an image, but I cannot until I have 10 rep pts!]</p>
  
  <p>How can I remove all breakpoints?
  Do I have to uninstall / reinstall?</p>