Works nicely, but... Rated 4 out of 5 stars

As TVTropes would say, it is Exactly What It Says on the Tin.It needs a small marker on the tab and header bar that marks it as a private tab. It looks like the original tab, which is great and nice, but a bit too confusing for my tastes. I am still going to be using this.Mozilla needs to add this.

This review is for a previous version of the add-on (0.1.5).