I switched to Firefox last year when talks of chromium manifest V3 First started popping up. I had used Firefox many years ago when Chrome was first coming out. I was blown away at how well it worked compared to old Firefox, plus how easy they made it to switch. I even changed my phone browser and my desktop browser ties in with it seamlessly. Very happy with the switch and I wish I had switched earlier.
Now, I just wish I could use it at work. Not sure how I'm going to block ads on my work browser.
What's odd is that we have Firefox pre-installed on our computers, but installing uBlock causes a lot of websites to stop loading. I forget the error, but I recall doing a lot of searching and it quickly becoming more effort than it was worth at the time since I'd have to do it all over again almost every day.