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...
Hmm, not having read up on the tech, what’s stopping someone from making a Firefox plugin that just spoofs fake data back? It’s all done client side if I’m understanding, so everything necessary to do so must be available. Only wrinkle I could see is if they have signing and ship the cert with Chrome and regularly rotate it. It’s still not impossible in that case, just more annoying.
My understanding is vague but the sandbox environment is cryptographically integrity checked in some fashion that makes the spoofing you’re suggesting difficult or impossible.