A software developer created a browser extension called Knockoff for Chrome and Firefox. This extension automatically hides, grays out, or filters products from questionable brands on Amazon. Knockoff highlights the prevalence of shady brands and their frequent appearance in searches for common items. Examples of these brands include SUNHZMCKP, SACATR, and ROTTOGOON. The developer, Josh Pigford, sarcastically apologized to many brands in a tweet accompanying the extension's release. Beyond specific brands, Knockoff also offers the option to hide all sponsored product listings. The extension rapidly gained popularity as a valuable tool for Amazon users. For those who avoid Amazon due to ethical concerns, Knockoff serves as further proof of the platform's decline. It demonstrates the extent to which Amazon has become a marketplace filled with unseemly offerings and questionable sellers. The tool addresses a growing frustration with the quality and authenticity of products found on the e-commerce giant.