Nielsen Extension QA is a Chrome extension designed for Nielsen panelists to send anonymous data about their online activities to Nielsen. This extension, created by Netsight Meter QA, is a pre-developmental build used for QA testing purposes, offering new features and bug fixes not yet available in the production version.

To participate, users need to sign up for the Nielsen Computer and Mobile Panel registration form before enabling the extension on their computers. By contributing data through this extension, users aid in providing insights on website visits, content viewing times, and browser usage patterns to Nielsen and its clients. The collected information is securely sent back to Nielsen for research purposes, ensuring anonymity and aggregation of data before any reports are shared.