I like Tab Utilities Rated 5 out of 5 stars

I find this extension to be quite useful. I just updated to FF 14 for some reason and the ability to hide the new tab button on the tab bar seems broken. The checkbox is grayed out and doesn't respond to clicks.

This review is for a previous version of the add-on (1.1.4).  This user has a previous review of this add-on.