uBlock Origin is a free, open-source content blocker developed as a personal project by Raymond Hill, whose privacy policy states it does not collect any data of any kind, has no home server, and embeds no analytics or telemetry hooks. The only time it connects to a remote server is to update filter lists, and that can be disabled. The developer states he has no intent ever to monetise it and the project refuses donations, directing supporters to filter-list maintainers instead. There is no company: development happens entirely in public view on GitHub, and the trade-off of that structure is that there is also no institutional accountability or succession arrangement behind a tool relied on by tens of millions.
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uBlock Origin's privacy policy, last edited 2023-05-01, states that uBO does not collect any data of any kind, has no home server, and embeds no analytic or telemetry hooks in its code.
The uBlock Origin wiki states the extension is completely developed in full public view with all sources and changes accessible on GitHub, that it is and remains a personal project with no intent ever to monetise it, and that it has no dedicated server -- there is only GitHub, which is unrelated to uBO.
uBlock Origin's source repository is public under the gorhill account on GitHub, where its full development history is open to independent inspection; the project refuses donations and directs supporters to filter-list maintainers instead.
uBlock Origin's privacy policy states that the only time the extension connects to a remote server is to update filter lists and related assets, and that if auto-update is disabled it will not connect to any remote server unless the user manually clicks update.
uBlock Origin's listing on Mozilla's official add-on store carries the "Recommended" badge, which Mozilla applies only to extensions it has vetted; the badge on the listing links to Mozilla's explanation that Firefox recommends only add-ons meeting its security and performance standards. This is a store-level vetting signal from a third party, not a published audit report.
No breach, incident, or trust violation involving uBlock Origin appears in the drafted record; the project's wiki argues that trustworthiness should be judged by open development, licensing, absence of home servers, behind-the-scenes network requests and monetisation methods, and uBO's code history is fully public against exactly those criteria.
Mozilla's Extension Workshop documentation for the Recommended Extensions program — the program under which uBlock Origin is badged on addons.mozilla.org — states that an extension undergoes technical review by Mozilla staff security experts before receiving Recommended status, and that standards are then maintained through automated checks, monitoring and periodic technical reviews. Mozilla publishes no per-extension report, so this is a recurring third-party review process rather than a published audit.
uBlock Origin's privacy policy states that the extension embeds no analytic or telemetry hooks in its code; content blocking runs locally against filter lists rather than through any remote service.