You need the Classic Theme Restorer to have the feature to add an extra toolbar. You can look at the Classic Theme Restorer extension to customize the appearance and restore features used in older Firefox versions. *Classic Theme Restorer: https://addons.mozilla.org/firefox/addon/classicthemerestorer/ *You can check out the settings of the CTR extension via its Options/Preferences button on the "Firefox/Tools > Add-ons > Extensions" page. *You can find extra toolbar buttons and more toolbar settings in Customize (3-bar Firefox menu button > Customize)