"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
All your data is encrypted on our servers so we can’t read it – only you can access it. We don’t sell your info to advertisers because that would go against our data privacy promise.
If you have syncing on, you are already trusting Mozilla with your history.
Oh yeah, agreed, if your syncing then your security model doesn’t include worrying about tracking.
deleted by creator
You are correct. My mistake.
https://www.mozilla.org/en-US/firefox/features/sync/