Knockoff: Local, Open-Source Extension Filters Fake Amazon Brands
A new browser extension called Knockoff helps Amazon shoppers avoid fake, mass-produced brands by flagging or hiding suspect listings. It runs locally in Firefox, Chrome, and other Chromium-based browsers, requires no account, and is open-source with code on GitHub. Users can adjust badges and report misclassifications to improve accuracy over time. While effective in filtering out many knockoffs, it may also mislabel legitimate brands and does not assess product quality, so buyers should still scrutinize listings themselves.