Flock Shelf

I had no idea what Shelf was, until I stumbled upon this:

Update: Just noticed another helpful feature built into Flock. When you have multiple tabs open, you can click and drag each one of them to the left and right. You will see small arrows pointing down in the position to drop it. I have been wanting draggable tabs for a while in Firefox. (Thanks to Tristan and Tom who pointed out Firefox Beta 2 now has draggable tabs.) Great addition to Flock.

Flying with the Flock » Solution Watch

And it made perfect sense, wonderful little gadget. I’m sure it will get put to great use