Firefox and Chrome are squaring off over ad-blocker extensions
There's a growing split over how much room browsers should leave for ad blocking - and Chrome and Firefox have ended up on opposite sides of the fight. The rupture centers on a feature called Web Request, commonly used in ad blockers and crucial for any system that looks to block off a domain wholesale.
https://www.theverge.com/2022/6/10/23131029/mozilla-ad-blocking-firefox-google-chrome-privacy-manifest-v3-web-request