I second this. As I did when this article came up before, I recommended everyone here give it a shot (with an example of how it makes life more efficient):

http://news.ycombinator.com/item?id=563917

Great addon. With a widescreen monitor there's a lot of space that could be doing something more useful.

One feature that I'd like to see, in tabs generally but it makes particular sense here, is a way of intelligently abbreviating the title text. For example on the Safari books site the titles all start with 'Safari Books Online' before getting to the part I'm interested in: the book's title. I'd like to see an addon that factored out repeated text in tab titles, or focused in on the part that's different.

This is a job for...

duh duh duh

Userscripts!