title: How to detect browser internal JavaScript errors?
body: <p>We are currently logging all JavaScript errors.
  However, some errors seem to be browser internal (plugin, etc) related. Like this one:</p>
  <blockquote>
  <p><strong>Error:</strong> Error calling method on NPObject!</p>
  <p><strong>Line:</strong> 0</p>
  <p><strong>Script:</strong> <a href="http://www.lookr.com/lookout/1329030315-Giglio-Porto" rel="nofollow noreferrer">http://www.lookr.com/lookout/1329030315-Giglio-Porto</a></p>
  </blockquote>
  <hr />
  <p><strong>How is it possible to ignore those browser internal, non-directly-website-related errors?</strong></p>
  <hr />
  <ul>
  <li>Ignoring all errors with <code>line 0</code> also seems not appropriate, since inline JavaScript errors would also be ignored (which is not desired)</li>
  </ul>
  <p>Thank you in advance for your suggestions.</p>