Consider the benefit to adding functionality to the contextual menu

[chrisblakley]

http://stackoverflow.com/questions/24542224/how-does-the-mdn-website-change-the-context-menu

Currently only Firefox support (or Chrome with experimental flag enabled).
http://caniuse.com/#feat=menu

[chrisblakley]

Better example:

http://davidwalsh.name/html5-context-menu

<section contextmenu="mymenu">
  <!-- 
    For the purpose of cleanliness, 
    I'll put my menu inside the element that will use it 
  -->

  <!-- add the menu -->
  <menu type="context" id="mymenu">
      <menuitem label="Refresh Post" onclick="window.location.reload();" icon="/images/refresh-icon.png"></menuitem>
      <menu label="Share on..." icon="/images/share_icon.gif">
        <menuitem label="Twitter" icon="/images/twitter_icon.gif" onclick="goTo('//twitter.com/intent/tweet?text=' + document.title + ':  ' + window.location.href);"></menuitem>
        <menuitem label="Facebook" icon="/images/facebook_icon16x16.gif" onclick="goTo('//facebook.com/sharer/sharer.php?u=' + window.location.href);"></menuitem>
      </menu>
    </menu>
</section>

Here's the demo (currently works in Firefox): https://davidwalsh.name/demo/html5-context-menu.php

[chrisblakley]

Added example

[chrisblakley]

Looks like this is being removed from the spec: whatwg/html#2730