Google has rolled out "Privacy Sandbox," a Chrome feature first announced back in 2019 that, among other things, exchanges third-party cookies—the most common form of tracking technology—for what the company is now calling "Topics." Topics is a response to pushback against Google’s proposed...
Chrome was pretty good and somewhat faster than FF for a while in the oughts. At least it felt that way, and Google didn’t seem so evil at the time. My guess is people go with chrome out of inertia