love it Rated 5 out of 5 stars

Works perfectly. No conflicts.

I had expected Firefox 4 to have this as a setting. It didn't. Then Firefox 5 didn't either.

the add-on I've been waiting for Rated 5 out of 5 stars

This is what I expected Firefox 4 to have as an option. Nope. Then when Firefox 5 arrived, still no joy in Spacesavingville.

Hurray. This works really, really well. Behaves just as described/no conflicts with prior add-ons or settings.