can't see drupal panel

What version of the firefox extension do you have installed you must have 2.1 or higher. Version 2 and below do not work. We are still waiting for Mozilla to approve the 2.1 version so in order to get it you will have to install it via the developer channel section at the bottom of the mozilla addons page https://addons.mozilla.org/en-US/firefox/addon/drupal-for-firebug/

or

you can download it and install it directly from an xpi from the projects bitbucket page. https://bitbucket.org/frob/drupalforfirebug/downloads

awesome