Best!

Easily the best adblocker. I cannot recommend it enough.
Edit: Basically all the 1star reviews are about YouTube. They're also all wrong. All issues are fixed, etc.

uBlock Origin de Raymond Hill

În sfârșit, un blocant eficient. Folosește procesorul și memoria foarte puțin.

Bloquea todo por lo que es una tranquilidad de leer algo en internet o ver algo

A must have. Makes everything cleaner, faster, and safer. The zap/pick features are SO useful for getting rid of site bloat. Not to mention how it's all seamless; there's no big gaps of empty space where ads or other nuisances would be. If I'm on a new computer, this is the extension I ALWAYS get first.

absolut zu empfehlen

Web is a different place with this addon installed. Ability to block ui elements is great!

By far the best add-on out there to block adds.

This add-on is the sole reason I decided to switch from Chrome to Firefox initially. Sure, it is available in other browsers but it doesn't work the same.

Absolute must-have. I would also recommend installing Betterfox or similar user.js thing (like Arkenfox) for increasing privacy and security even more.