cd7c41b5_ebug_Preferences___FirebugWiki__Description
[Option] hiddenPanels [Valid Values] "console", "html", "stylesheet", "script", "dom", "net" + Panels from extensions [Default] "" [UI Equivalents] Firebug Panel Bar -> Panel Selector [Description] 
Panels, that are not shown inside the Panel Bar
Firebug Preferences - FirebugWiki