# uBlock Origin privacy rating

Free, open-source content blocker for ads, trackers and malware sites. Efficient, with no "acceptable ads" program.

**Our pick.** The most effective blocker available, with no data collection, no home server, no acceptable-ads deals and not even a donation page. Install it through the links on its GitHub page to avoid look-alike extensions.

**Keep in mind:** Browsers built on Chromium are removing support for Manifest V2 extensions. Where uBlock Origin no longer runs, use uBlock Origin Lite from the same developer.

## Summary

uBlock Origin scores 88 out of 100 (grade B) on the ad and tracker blockers criteria. It meets 6 of 7 criteria: open source, no trackers or telemetry, no ads or data sales, effective by default, no browsing data collected and custom filters. It does not meet independent audit.

- Website: https://github.com/gorhill/uBlock
- Source code: https://github.com/gorhill/uBlock
- License: GPL-3.0
- Platforms: Firefox, Chromium
- Category: [Ad and tracker blockers](https://privacyratings.com/ad-blockers/)
- Grade: B (88/100)

## Criteria

| Criterion | Answer | Note | Evidence |
| --- | --- | --- | --- |
| Open source | Yes |  | https://github.com/gorhill/uBlock/blob/master/LICENSE.txt |
| No trackers or telemetry | Yes |  | https://github.com/gorhill/uBlock/wiki/Privacy-policy |
| No ads or data sales | Yes | No ads, no acceptable-ads program, and donations are not accepted. | https://github.com/gorhill/uBlock/wiki/Privacy-policy |
| Independent audit | No | No independent audit is published. |  |
| Effective by default | Yes |  | https://github.com/gorhill/uBlock#readme |
| No browsing data collected | Yes | No data of any kind is collected. The only connections are filter list updates. | https://github.com/gorhill/uBlock/wiki/Privacy-policy |
| Custom filters | Yes |  | https://github.com/gorhill/uBlock/wiki/Dashboard:-My-filters |

Source: https://privacyratings.com/ad-blockers/ublock-origin/
Edit: https://github.com/privacyratings/privacyratings.com/edit/main/ratings/ad-blockers/ublock-origin.md