This extension will probably be discontinued from this point on. Bastian Allgeier and I have consolidated our separate addons into the official Zootool extension.

A toolbar icon to use the Zootool Lasso

You can download Zootool for Safari here

Pretty much all the credit goes to the Zootool team for their Lasso tool. I just rigged it to work in Safari.

• Add a way to just automatically save the page without ever hitting the Lasso tool