ABANDONED - looking for a dev Rated 4 out of 5 stars
it appears this extension has been abandoned as ithinc has not updated any of his extensions since 2011
it is rumored he may have passed on and emails to him are not being returned - i think we would all thank him for his work as Tab Utilities is, in my opinion, the best tab customization extension by far
members of the mozilla forum community, 'blackwind' in particular, have been very gracious by fixing bugs and offering code and download locations for their patched versions, which can be found here (start reading at page 163):
the patched version as of 14-July-2013 seems to work very well with Firefox 22
hopefully another developer will come along and take this excellent project under their wing as 'blackwind' apparently cannot do it alone
until then, thanks 'blackwind' for your work!!!