uBlock Origin review
A highly configurable free blocker for users who want control over filtering.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
uBlock Origin is a free, open-source browser extension for filtering advertisements, trackers, pop-ups, coin miners, malicious sites, and other unwanted requests. It is aimed at users who want detailed control over what browsers block rather than a minimal, largely automatic setup. Versions are available for Windows, macOS, Linux, and Android through supported browser add-on channels, with support and functionality varying by browser and browser version.
Its strongest distinction is filtering depth. uBlock Origin uses multiple lists, including EasyList, EasyPrivacy, and its own lists, while also allowing users to import and manage third-party filter lists. Hosts files can be used as filter sources, and custom rules and filters support an extended EasyList syntax. The interactive element picker can create cosmetic or network filters, while per-site advanced filtering and a point-and-click firewall provide more granular control over individual websites. EasyList Cookie Notices also supports filtering cookie notices.
That breadth makes uBlock Origin a strong fit for power users who want a free tool with extensive customization across desktop and Android environments. It is less suitable for people who prefer a simpler blocker with minimal configuration or who depend on one consistent experience across every browser. The Chrome Web Store listing was removed on August 31, 2026, and browser support can change by browser and version, so the choice depends on using a supported distribution channel. Users who value custom filter management and site-specific controls should consider uBlock Origin; those prioritizing broader verified platform coverage or a more uniform browser experience may prefer an alternative.
uBlock Origin pros and cons
- Where it wins
- Free and open source under the GPLv3 license
- Custom rules, filter lists, element picker, and per-site controls
- Blocks ads, trackers, pop-ups, coin miners, and malicious sites
- Where it doesn't
- Support and functionality vary by browser and browser version
- Chrome Web Store listing was removed on August 31, 2026
- Advanced filtering may require more configuration than simpler blockers
uBlock Origin fact sheet, pricing and score →
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