It's published as a Firefox extension and you should be able to find it by searching for Lasso but I think I need to push the latest version and update the website. Thanks for the reminder. Which other browsers would you like?
Personally I only care about Firefox, but I think its pretty standard to support Firefox, Chromium, and Safari.
Tried it out and works well after I figured out how to start clipping but didn't work for a couple sites I tried, mostly the financial ones like Chase and PayPal. Looking forward to the update!