> First, Firefox does ship a lot of anti-tracking tech, as much of it by default as possible without breaking sites too much.

Hi sfink. Thank you for a response. I still use Firefox myself but I've been disillusioned by the Mozilla's (mis)management in recent years. I think we will find out more about this "deal" with Meta in the next report and whether they have contributed anything to Mozilla. I find your theory about Mozilla teaming up with Meta to oppose Google interesting. But I don't see why Mozilla would rock the boat and upset their biggest customer.

As for Firefox' 'out of the box' privacy protections, please take a look at this academic paper that I've linked in another comment [1]:

Specifically, section 4.2.4 on page 238:

>Firefox is least effective at reducing third-party tracking-and-advertising requests. This is unsurprising, as Firefox’s enabled-by-default “standard” tracking protection “blocks fewer trackers”.

[1] https://petsymposium.org/2022/files/papers/issue1/popets-202...