Online Bible resources multiply daily, but this appears to be one worth some attention. I’m not one to give up valuable monitor space, so I tend to dislike toolbars. But the Tyndale House toolbar seems to offer a lot of options. I’ve downloaded it, and plan on taking it for several test drives before I decide to leave it or delete it, but I suspect it’ll become a fixture. And, yes, you can hide the toolbar when not using it.
These folks are ahead of the curve: the toolbar works in IE, Firefox, Flock and Safari.