Among the effects are
- A Windows Vista type Flip 3D
- Apple iTunes style Cover Flow
- Cooliris PicLens style 3D gallery wall
A better explanation is in the video below
To get this add-on for your Firefox go here:
Hmm ... come to think about, ideally the best and most useful tab navigator is one that navigates the brower tabs and the open applications in one interface. It would require combining the browser system with the computer operating system with some stylized transitions. Let's see if anybody comes up with that one.