>> its built-in privacy tools blocking trackers *by increasing opt-in* Enhanced Tracking Protection is one-click to turn on, and suggested as an option on firs

>> its built-in privacy tools blocking trackers *by increasing opt-in* Enhanced Tracking Protection is one-click to turn on, and suggested as an option on first startup on a fresh install (modulo A/B tests and whatnot) and is a setting that syncs across your devices if you do turn it on just once. Anecdotally, most people I know still using Firefox as daily driver also have Enhanced Tracking Protection on. Enhanced Tracking Protection does block Google Analytics and other standard analytics providers. (So much so that some ad companies have started to treat Firefox as an "ad blocker" by default and have increasingly harsh warnings that sites are not supported in Firefox due to "ad blocker". ETP blocks zero ads, just trackers.)