Who is behind uBlock Origin?

uBlock Origin is operated by Raymond Hill.

Is uBlock Origin Safe? — Extension Safety Profile

Quick verdict: uBlock Origin earns a safety grade A, 83.3 out of 100, based on 5 of 5 dimensions.

83.3/100

Grade A · 5 of 5 checks

What we found

Ad & Content Blockers · Data updated 2026-08-04

Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.

What this safety grade means

uBlock Origin earns a safety grade of A (83.3/100), measured across 5 of 5 dimensions. Its strongest area is Community Reputation (100%). The weakest is Data & Privacy (50%) — what holds its grade back the most.

On the public records we can check, uBlock Origin comes through cleanly. 10,447,451 active users/installs reported on the store. Store rating 4.8/5 from 21,968 user ratings. Last updated on the store 2026-08-02. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open uBlock Origin's own store listing and privacy policy before installing, and weigh it against the other ad & content blockers extensions we track below.

Safety Signals

Based on 5 of 5 safety dimensions

Dimension	Score	Source
Publisher & Identity	60% · 4.8/8 pts	Automated signals
Permissions & Access	85% · 14.2/16.7 pts	Automated signals
Data & Privacy	50% · 2/4 pts	Automated signals
Maintenance & Ownership	100% · 7.5/7.5 pts	Automated signals
Community Reputation	100% · 10/10 pts	Automated signals

Who's Behind uBlock Origin?

Publisher Raymond Hill

Public records identify the publisher, but no individual founders or a separate registered company are named — which is what holds the Publisher & Identity score back. Less public information about who operates an extension means less you can verify about their long-term accountability.

How it compares

Among the 12 Ad & Content Blockers extensions we track, uBlock Origin scores higher on safety than 33% of them.

Computed from our own database of assessed Ad & Content Blockers extensions — updated as we track more.

Evidence on File (8)

Founder public: Publisher publicly identified: Raymond Hill (individual founders not separately named).

Source: github.com ↗ · Captured 2026-06-18

Registered company: Raymond Hill.

Source: github.com ↗ · Captured 2026-06-18

Privacy unverified: We could not locate a public privacy policy to verify how uBlock Origin handles your data — treat its data practices as unverified and check the vendor's own site.

Our reports database · Captured 2026-08-04

High-capability permissions: Requests 5 high-capability permission(s): privacy, tabs, webnavigation, webrequest, webrequestblocking — all expected for Ad & Content Blockers extensions to do their job.

Source: addons.mozilla.org ↗ · Captured 2026-08-04

Website access scope: Requests access to all websites (<all_urls>, http://*/*, https://*/* +10 more) — expected for Ad & Content Blockers extensions, which have to work across the sites you visit.

Source: addons.mozilla.org ↗ · Captured 2026-08-04

Last updated recency: Last updated on the store 2026-08-02.

Source: addons.mozilla.org ↗ · Captured 2026-08-04

Store rating: Store rating 4.8/5 from 21,968 user ratings.

Source: addons.mozilla.org ↗ · Captured 2026-08-04

Store users: 10,447,451 active users/installs reported on the store.

Source: addons.mozilla.org ↗ · Captured 2026-08-04

uBlock Origin FAQ

Is uBlock Origin safe?: uBlock Origin earns a safety grade of A (83.3/100) on our evidence-based assessment, based on 5 of 5 safety dimensions we could verify from public records. This is an automated profile built from public records, not a hands-on review.
Who is behind uBlock Origin?: uBlock Origin is operated by Raymond Hill.