https://arstechnica.com/gadgets/2023/09/googles-widely-opposed-ad-platform-the-privacy-sandbox-launches-in-chrome/
It's a "feature".
Always count your rings after shaking hands with Google.
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I'm running into a couple of sites that are blocking Ublock on FF.
Since I'm running uBlock and Privacy Badger, I'm not sure which triggers the block, but I would say it's a pretty decent number of sites that block or nag when they encounter ad or tracking blockers.
I'm using Vivaldi's built-in blocker. I have it set to only block ads from ad networks, so if a site is serving their own ads I'll see them (rare.)
How to turn off Chrome's new targeted ad-tracking API
https://bgr.com/tech/how-to-turn-off-chromes-new-targeted-ad-tracking-api/
I just don't get why Chrome is the end all be all. I used it for a couple of months, but quit when I realized it was phoning home every minute. (Literally, pinging the server every minute.)
I work with not real tech savvy people who use Chrome, and I'm forever teaching them how to reload their page because Google will cache and NEVER update. It's maddening.