title: What can I do with Firefox's Browser Console which I can't with Web Console?
body: <p>I have recently known that Firefox has a Browser Console (different than Web Console) which can be enabled setting <code>devtools.chrome.enabled</code> to <code>true</code>.</p>
  
  <p>I have searched information about what can I do with it, but I have only found</p>
  
  <blockquote>
    <p>The Browser Console lets you see all JavaScript errors and logging in
    the browser, including from Firefox code. To enable it, go to
    about:config in the url bar and set devtools.chrome.enabled to true.
    Activate it through with the menu Web Developer > Browser Console.</p>
  </blockquote>
  
  <p>(<a href="https://developer.mozilla.org/en-US/docs/Debugging_JavaScript#Browser_Console" rel="nofollow">https://developer.mozilla.org/en-US/docs/Debugging_JavaScript#Browser_Console</a>)</p>
  
  <p>I have discovered that Browser console is useful because I can see the errors in sandboxed GreaseMonkey scripts. But I guess it can do lots of interesting things, where can I find some info?</p>