[nine_k]

IDK. I run Firefox on many OSes, everywhere with uMatrix that blocks known trackers, ad networks and such. I don't see most ads (if any).

I rarely see the "I am not a robot" box, and hasn't seen image recognition tasks for a long-long time.

[raws]

That also heavily depends on what kind of/which sites you visit.

[gcb0]

"that also depends if you have something to hide" was said of every police state and censorship scheme.

[gcb0]

if you were really blocking all trackers, Captcha would even work. Firefox help page for their new tracker blocking feature says so even.

[jplayer01]

They're on a lot of sites that I frequent.