uBlock Origin

uBlock Origin

Efficient open-source content blocker

Description

A page opens with three popups, a video carries a minute of pre-roll, and trackers have logged you before you have read a word. Piling on blocker plugins slows the browser and makes things worse. uBlock Origin goes the other way — clean, fast blocking at very low memory and CPU cost.

Open-source and free, on Firefox, Chrome and Edge. It blocks ads, trackers and malware sites by default, with none of the "acceptable ads" whitelist business.

Features



Light and efficient: an efficient filtering engine delivers the same blocking at far lower memory and CPU use than comparable extensions, so it does not drag on older machines.

Multiple filter lists: EasyList, EasyPrivacy and other mainstream rules ship built in, freely toggled, with third-party lists to subscribe to and your own rules to add.

Element picker: click an eyesore on the page — a banner, an overlay, a promo slot — and it is hidden for good, with the rule generated for you.

Dynamic filtering and advanced mode: power users can control scripts, frames and remote fonts per domain for genuinely on-demand allowance.

No whitelist for sale: strict blocking by default, unlike blockers that take payment to let ads through — what gets blocked is decided by your rules alone.