Rated 5 out of 5 stars

There should be an option for tabs in titlebar in a restored window. See http://userstyles.org/styles/42417/ff4-tabs-in-titlebar-in-restored-window
Also in Toolbar>Buttons there should be an option to mix certain styles or create custom styles.

This review is for a previous version of the add-on (1.0).  This user has a previous review of this add-on.