U.K. regulators are investigating browser proposals as dissent mounts over Privacy Sandbox The CMA is investigating Google Chrome’s proposals to remove third-party cookies from the industry's leading web browser. Gov.Uk, Google January 13, 2021 The global wave of privacy legislation has led to the curtailment of ad targeting, but its effects on the online landscape are much broader than that. The latest investigation into Google’s proposed web browser changes exposes the trade-offs lawmakers concerned with consumer protection and regulators looking to preserve competition will have to ponder.