how to enable firebug
One Click to Start Firebug. After you install Firebug you will see a gray 'Firebug' in the Firefox Navigation toolbar (along the top of the window). Click on the Bug to start.Firebug will open in the bottom of your web page.o bring down the Firebug UI you can either push the Firebug toolbar icon a second time or use the minimize button next to the search box (down arrow). To close Firebug on a page, use the red [x].