Rated 5 out of 5 stars

Usefull but :
-> can't do it more than one time (why?)
-> Can you add go forward tab?

This review is for a previous version of the add-on (0.1.2011012802.1-signed.1-signed). 

0.2.2011082901 provides ability to "go forward" through tabs.

Good news. 0.2.2011082901 now implements "go forward" support. And, you'll be able to go back/forward multiple times.