@aral @SecurityWriter Good point. Some ad blockers are security tools, some (like ABP) offer a false sense of security with paid allow-listing, and some are adware, malware, or subscription scams.
The 2 tools I recommend are:
Privacy Badger is simpler but since it's purely focused on tracking it will let more annoyances through.
uBlock Origin does a lot more
I never recommend "an ad blocker" to users—the extensions that come up highest in Google are the ones that let the Google ads through