An anonymous reader quotes a report from Gizmodo: Google’s Privacy Sandbox, a controversial set of tools and settings meant to replace third-party cookies, is now on almost every single Chrome browser, according to a company blog post published Thursday. Google says Privacy Sandbox is now available to around 97% of Chrome users, and that number will reach 100% in the next few months. The news comes on the heels of the browser’s 15th anniversary, which Google is celebrating by redesigning Chrome to make it look and feel more closely aligned with the design paradigm of Android and the rest of the Google suite. The final step in this process comes in 2024, when Google will disable third-party cookies in Chrome for good, marking the end of their decades-long reign of privacy-violating terror.

Back in 2019, Google said the cookie era was coming to a close. In place of third-party cookies, Privacy Sandbox will implement a long list of new tools for the ad industry. Google, after all, makes all of its money by spying on you and turning the insights into ads, so it’s not about to put itself out of business. In fairness, this new system is really more private, though it’s private on Google’s terms. The biggest change is “Ad Topics,” a.k.a. the Topics API if you’re a huge nerd who’s been following this stuff for years. With Topics, Chrome will keep track of all the websites you’re looking at and sort you into a variety of categories. This tracking happens in your browser and the data stays on your device. Neither Google nor anyone else gets to see your browsing history or learn anything about you as an individual throughout this process. Websites and advertising companies will know there’s a person interested in a certain Topic, but they won’t be able to tell who you are specifically.

There’s also an extremely complicated technique websites can use to tag you with subjects they want you to see ads about, called “Site Suggested Ads.” Google is also rolling out a tool called “Ad Measurement,” which helps companies keep track of how well their ads are working through metrics such as the time of day you saw an ad and whether you clicked on it. Google gives users some control over how these tools are implemented. With the rollout of Privacy Sandbox comes new settings listed as “Ad privacy controls,” which you can adjust in Chrome’s preferences. Further reading: Chrome is About To Look a Bit Different