Privacy & Ad blocking
Firefox is since years my preferred web browser. Although being a niche browser there's nothing I miss with regards to functionality but a lot I appreciate with regards to privacy.
I run pi-hole on a Debian VM since years for ad-blocking at DNS level. It's effective, low-maintenance and does its job in the back without getting noticed.
My preferred add-on for ad-blocking. Low-maintenance and effective.
I recently started using ClearURLs as well. It silently removes tracking elements from URLs.