If you've run a site with CORS reporting enabled, you'd see that a significant fraction of your userbase have malware extensions running (prior to manifest v3).

If you've run a site with CORS reporting enabled, you'd see that a significant fraction of your userbase have malware extensions running (prior to manifest v3). I was absolutely shocked when I looked at the logs a decade ago, and I bet the problem is far worse these days with the proliferation of malware buyouts of legit extensions. Google has no shortage of options for serving up ads that can't be blocked by normal ad blockers across all their properties (youtube, search, etc.). They in-line the ads these days! And if they really cared about the fraction of a fraction of a percent of people that even install any kind of adblocker, they could make the served ad content un-blockable by serving it the exact same as the content.