Drupal 7 Custom Theme - Administration menu missing or not showing
You need to print the $page_bottom just before the &lt;/body&gt; tag in html.tpl.php.

You do need $page_top too, and $page, so taking the default html.tpl.php as an example:

&lt;body class="&lt;?php print $classes; ?&gt;" &lt;?php print $attributes;?&gt;&gt;
  &lt;div id="skip-link"&gt;
    &lt;a href="#main-content" class="element-invisible element-focusable"&gt;&lt;?php print t('Skip to main content'); ?&gt;&lt;/a&gt;
  &lt;/div&gt;
  &lt;?php print $page_top; ?&gt;
  &lt;?php print $page; ?&gt;
  &lt;?php print $page_bottom; ?&gt;
&lt;/body&gt;