You can't uninstall the developer toolbox, but you can disable some components Various Web Developer tools each have their own pref on the about:config page to enable or disable them. You can search for devtools.*.enabled via the Search bar at the top of the <b>about:config</b> page. *devtools.debugger.enabled *devtools.errorconsole.enabled *devtools.fontinspector.enabled *devtools.inspector.enabled *devtools.layoutview.enabled *devtools.netmonitor.enabled *devtools.profiler.enabled *devtools.responsiveUI.enabled *devtools.scratchpad.enabled *devtools.styleeditor.enabled *devtools.tilt.enabled (3D View) *devtools.toolbar.enabled *devtools.webconsole.enabled *http://kb.mozillazine.org/about:config