Hi, I'm able to install it and see it so it looks like it's something specific to your configuration. Perhaps you have it activated but hidden? This article explains how to make it visible: [[Customize Firefox controls, buttons and toolbars#w_i-have-missing-toolbars-unwanted-toolbars-or-toolbars-that-get-reset|I have missing toolbars, unwanted toolbars or toolbars that get reset]] Let me know if it helps, Ibai