This is a mind-boggling level of FUD. Content blockers have been noticeably superior on both macOS and iOS for years. They’re not “limited”, they’re rational. It’s abjectly absurd that traditional ad blockers can consume as much CPU as they do on every single page load. I hope everyone in this thread jumping ship to Firefox in a panic enjoys their shorter battery life.
Disagreed. Content blockers are "dumb" as they just provide a list of URLs/regexes to block, which doesn't always work and doesn't allow behaviour-based blocking like "dynamic filtering" that some Javascript-based adblockers have.
Sure, it's technically possible for a JS blocker to use more CPU, but 1) it's a trade-off the user should be allowed to make (I'm happy to sacrifice some CPU in exchange for better ad blocking and privacy) and 2) I never had a case where a JS-based blocker noticeably impacted performance.