Firefox is likely higher because FF users are more likely to have Ublock or some other content blocker installed. I'd also guess FF users are older, on average. Some will remember a time when FF was the clear choice over IE6. I used Chrome exclusively for a long time, then went back to FF once Chrome started to automatically log me into Chrome with my Google account.
There's a whole generation of users who first experienced the web via mobile browsers that don't block anything. When they become old enough to start using laptops and desktops, I imagine that it won't occur to them that an analytics-free and ad-free world is possible.
There's a whole generation of users who first experienced the web via mobile browsers that don't block anything. When they become old enough to start using laptops and desktops, I imagine that it won't occur to them that an analytics-free and ad-free world is possible.