I had a feeling it would go between Opera and Firefox.
All those add-ons are all nice and all but quite frankly I'm to lazy and don't care enough to look for good add-ons or change settings when on a different website.
I can see myself making extensive use of the search keywords though.

Are these two browser vastly different from explorer in terms of use? And if so are they intuitive enough to get the hang of it quickly enough?