For most big sites this isn't a problem as you're not going to be gaming the stats (presumably the legal costs outweigh the benefit) -- for the scammy small sites faking ad rev.. Well, if this kills them then good riddance ?
If it's (as you say) good riddance to the small, scammy sites then I think it's the medium-sized sites which will really have a problem. Not big enough to negotiate directly, not small enough to disappear overnight.
And how do they do that? The "advantage" of third-party tracking is that a cookie set by the analytics service on site A gets sent back when the user goes to site B and C and D (etc).
Without that, they have to somehow figure out that user 34 on site A is the same as user 95 on site B. That's often possible, but much less reliable.
For the likes of google and co, I wouldn't be surprised if we start seeing more ad companies requiring you to send some other PII via the api so they can turn a random tracking ID into an email address or whatever though.
The same user on a.com and b.com get different ID's, but a.com and b.com both send data to tracker.com which maps that ID to an email address and then tracker.com can easily combine 'em. Not sure it's legal to do so, when I was working in this space we were quite forbidden from mixing up tracking information from various properties
So blocking third-party cookies is a good start to avoid tracking across different publishers (which is the big no-no for me, the fact that a single publisher knows what i read of his is not such a big issue and not that different to what has always been done by just crawling the ht_access logs...)
All these protections only prevent setting cookies, not reading them again.
https://blog.mozilla.org/security/2018/10/23/firefox-63-lets...
It's not death anyway; it's just that blockers will have to adjust to blocking bits of third party content.
Just wondering: how will that work when javascript is compressed and obfuscated together with the main code served by the website?
Since the unique IDs between the different platforms would differ for the same user (as there's no way to coordinate without 3rd party cookies)
