Rated 5 out of 5 stars

Great addon! This makes for a much more efficient and organized use of screen space when browsing a large number of tabs at once.

Note to users of the addon FB Purity: if you have both of these addons enabled at once, Tree Style Tab will not correctly nest child tabs (in other words, any new tabs created will always be created as a new parent tab).

This review is for a previous version of the add-on (0.14.2013100901.1-signed).