I’m trying to clear the mess of overlmapping tab-related ff extensions (TBE ommitted). A good start (apart from S. Boulema’s page) is foun on The One KEA‘s Tabbrowser Preferences (TBP) page. (TOK is now official maintener of TBP)
A very useful post from Samir Boulema’s Extensions mirror (TEM) listing (closely) related Firefox extensions, sets with overlapping features. Samir brings the knowledge of ff extensions further with this tab related extensions thread.
Samir also has an excellent Bumping extensions tutorial. « Bumping » is the name given by TEM staff to allowing an extension to work with a more recent version of Firefox.