Cooliris is a Firefox plugin that duplicates the Browster search preview functionality, although only on Google. Once the plugin is installed, you hover your mouse over a Google search link or image and the underlying content is pulled up on screen before you click.

Browster CEO Scott Milener wrote about Cooliris and other competitors on the Browster blog, using it as an opportunity to announce that Browster still has a few tricks up its sleave. My previous posts on Browster are here.