"No shady privacy policies or back doors for advertisers" proclaims the Firefox homepage, but that's no longer true in Firefox 128.
Less than a month after acquiring the AdTech company Anonym, Mozilla has added special software co-authored by Meta and built for the advertising industry directly to the latest release
I’m not clear on how this system works, but I would like to know how it’s supposedly better than Google’s Topics. Especially if, as comments elsewhere in the thread suggest, Mozilla’s solution involves potentially exposing your entire browsing history to someone. Topics doesn’t do that, since it’s entirely handled in your own browser and only sends vague categories. (And even fuzzes them by potentially sending a random category you didn’t actually visit.)
https://support.mozilla.org/en-US/kb/privacy-preserving-attribution