Excellent extension with a very efficient and satisfactory level of protection by default. If you have to recommend one complement for the privacy of your loved one, pick this one: It will "break" nearly no website and will block the majority of adds and trackers in a completely unattended way. Amazing tool
uBlock Origin is a wide-spectrum content blocker with CPU and memory efficiency as primary features
It includes filter lists for ads, tracking, and malicious URLs
Users can also create global or local rules to override entries from filter lists and block JavaScript locally or globally
The plugin is open source with a public license (GPLv3)