More specifically, they blocked extensions that work a certain way. The deal breaker for me was when uBlock origin was no longer able to run. I immediately switched to Firefox and Brave.
In July 2018, uBlock.org was acquired by AdBlock,[19] and began allowing "Acceptable Ads",[20] a program run by Adblock Plus that allows some ads which are deemed "acceptable", and the publisher pays Adblock Plus.[21]
uBlock was the original tool but was handed over to another maintainer some time ago. The original developer of uBlock, being unhappy with the direction of the tool, forked the repo and made uBlock Origin which he maintains and is often considered the better product by people here