https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/Tracking_Protec...

exhilaration on Dec 10, 2019 | parent | context | favorite | on: Apple’s Ad-Targeting Crackdown Shakes Up Ad Market

https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Pri...

The above specifically shows you to make sure your site continues to function when Google Analytics is blocked by Firefox. I can't find any evidence that Firefox doesn't block Google Analytics.

donclark on Dec 10, 2019 [–]

I highly recommend: https://addons.mozilla.org/en-US/firefox/addon/umatrix/