Firefox includes Tracking Protection, which, as it says on the tin, blocks trackers, not ads. But many, many ads have trackers built in, so it practically also blocks most ads.
This is default-enabled in Private Browsing. To enable it in normal browsing, you can toggle privacy.trackingprotection.enabled in about:config. I think, there's also now a GUI toggle in the settings to do that, I haven't checked yet.
And well, the main-motivation for not default-enabling it is not some Google-conspiracy, it's because they'd take away the income source of many webpage owners who in turn would simply stop testing against Firefox, if not block it completely.
Apple doesn't have to give as much of a fuck about this, as they have basically guaranteed market share with macOS and iOS, and because Chrome uses a fork of their browser engine, so if webdevs test against Chrome, it'll almost certainly also work in Safari.
This is default-enabled in Private Browsing. To enable it in normal browsing, you can toggle privacy.trackingprotection.enabled in about:config. I think, there's also now a GUI toggle in the settings to do that, I haven't checked yet.
And well, the main-motivation for not default-enabling it is not some Google-conspiracy, it's because they'd take away the income source of many webpage owners who in turn would simply stop testing against Firefox, if not block it completely.
Apple doesn't have to give as much of a fuck about this, as they have basically guaranteed market share with macOS and iOS, and because Chrome uses a fork of their browser engine, so if webdevs test against Chrome, it'll almost certainly also work in Safari.