Do you have a minute to talk about our lord and savior Mozilla Firefox?

Nope. Many Chromium forks already have very good inbuilt adblockers , which won’t be affected by the MV3 stuff. On top of that, one could also use system-wide blockers suck as AdGuard and DNS-level blockers (which is not even a bad idea if you’re on Windows anyway).

System wide ad blockers can’t block a lot of ads, namely same-domain ads or those that are built into the html. Much rarer than the external page kind (DNS ones) thankfully.