# uBlock Origin

> A free, open-source, highly efficient ad and content blocker known for its low resource usage and powerful custom filtering.

Canonical: https://www.findalternate.com/ublock-origin
Last updated: 2026-09-11

A free, open-source, highly efficient ad and content blocker known for its low resource usage and powerful custom filtering.

## Key facts

- **Website:** https://ublockorigin.com/
- **Category:** Browser Extensions
- **Pricing:** FREE
- **Platforms:** Chrome, Firefox, Edge, Safari
- **Launched:** 2026-07-01
- **Maker:** adi
- **Likes:** 0
- **Points:** 0
- **Comments:** 0

## Key features

- Wide-Spectrum Content Blocking: Blocks advertisements, tracking scripts, coin miners, and malicious popups.
- Minimal Memory & CPU Footprint: Highly optimized C++/JS filtering engine that consumes minimal system resources.
- Element Zapper & Picker: Interactively point and click to remove annoying page elements permanently.
- Dynamic Filtering Rules: Advanced granular control allowing users to block or allow scripts and iframes by domain.

## Recommended for

Every internet user, developer, and security enthusiast wanting an uncompromised, ethical ad and tracker blocker.

## Pros and cons

Pros:
- The uncontested gold standard of content blocking with zero corporate "acceptable ads" deals.
- Incredibly lightweight, consuming far less RAM and CPU than commercial ad blockers.
- Powerful element picker lets users permanently remove annoying web popups.

Cons:
- Manifest V3 restrictions on Chrome limit full dynamic filtering capabilities.
- Advanced dynamic filtering mode has a steep learning curve for non-technical users.

## Conclusion

uBlock Origin is the most important browser extension ever written. The modern web is largely hostile—a chaotic environment of tracking pixels, massive video ads, and behavioral profiling scripts designed to harvest user data. uBlock Origin is the definitive shield. It does not compromise, it does not accept bribes to whitelist corporations, and it operates with blistering mathematical efficiency. It returns control of the web browser to the user.

## Tags

open-source, efficient, free

## Alternates

- [AdGuard](https://www.findalternate.com/adguard): An ad and tracker blocker available as both a browser extension and standalone app, offering broader system-wide ad filtering. — FREEMIUM, 0 likes
- [Privacy Badger](https://www.findalternate.com/privacy-badger): An EFF-developed browser extension that automatically learns to block invisible trackers based on their behavior across sites. — FREE, 0 likes
- [AdBlock](https://www.findalternate.com/adblock): A popular ad-blocking extension offering one-click blocking of ads, pop-ups, and video ads across most websites. — FREE, 0 likes
- [Total Adblock](https://www.findalternate.com/total-adblock): A premium ad-blocking extension combining ad and pop-up blocking with malware protection for a cleaner, safer browsing experience. — PREMIUM, 0 likes
- [AdBlock Plus](https://www.findalternate.com/adblock-plus): One of the most widely installed ad-blocking extensions, offering customizable filter lists and an 'Acceptable Ads' whitelist program. — FREE, 0 likes
- [Ghostery](https://www.findalternate.com/ghostery): A privacy browser extension that blocks ads and trackers while showing users exactly which trackers are present on each page. — FREEMIUM, 0 likes

## Related

- [Browser Extensions category](https://www.findalternate.com/category/browser-extensions)
- [Compare uBlock Origin and AdGuard](https://www.findalternate.com/compare/ublock-origin-vs-adguard)
- [FindAlternate homepage](https://www.findalternate.com/)