No customize titlebar menu entry in TB 5 Rated 2 out of 5 stars

There is no Customize Titlebar menu entry in TB 5 (see https://bugzilla.mozilla.org/show_bug.cgi?id=673449)
Windows XP SP3

This review is for a previous version of the add-on (3.1.5.1).  This user has a previous review of this add-on.