title: How do I run Firefox inspector within an iFrame?
body: <p>I know Chrome's inspector has a selector to choose which frame to use with the console. Firebug has a similar command, <code>cd(window.frames[number])</code>. Is there anything similar in Firefox Devtools? I suppose frame.window.eval could work, but only if it isn't cross-domain.</p>
  
  <p>I was also wondering if there is a highlighter to inspect results of Web-console commands, for example <code>document.getElementsByClassName(...)</code>. but you can at least change style of an element programmatically to 'see' it.</p>