Yes, but they will keep supporting MV2 "for the foreseeable future", which means that all old extensions should keep working. It is going to be somewhat scary when they decide to remove MV2 support, but for now we are good.
Tbf Mozilla needs money to keep doing good work, and I don't mind "paying" for Firefox like that when the only alternatives are "paying" by letting Google track and sell my personal data.
I used to use Firefox but half the websites I visted were broken on it. Companies don't make their websites compatible with it anymore which really sucks. If Chrome kills adblocker, I'll switch back, but it's just annoying when you get to the middle of a transaction and the site stops working because the devs were too lazy to test on anything but Chrome.
I found Firefox WAY before i found Lemmy, no Chrome on my machines, UBlock Origin, Noscript, Facebook Container, Video Downloadhelper, Firefox lets one retake control
I was using Firefox on my phone forever because it can block ads on mobile, and moved back to it from Chrome when it came out that Google was basically going to make ad blocking impossible in chromium itself eventually. I had been using Firefox for a long time even after Chrome came out but started using Chrome during a period where Firefox was much slower and was having a lot of issues for some reason.
Mainly because it's not a Chromium based browser. Chrome is making it hard/impossible to use adblock, and if Firefox were to die for whatever reason, Google would basically monopolize the way we interact with the internet (which it has almost done already)