# uU (untrack URLs)

> Removes tracking parameters and bypasses tracking redirections at some sites

Canonical page: [https://chrome-stats.com/d/uu](https://chrome-stats.com/d/uu)

## Overview

- **ID:** `uu`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Lyubomyr Shaydariv
- **Category:** privacy-security
- **Rating:** 5.00 / 5 (4 ratings)
- **Version:** 0.0.51
- **Last updated:** 2026-09-06
- **First published:** 2023-11-11
- **Size:** 109 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/uu/)
- **Website:** [https://github.com/lyubomyr-shaydariv/uu-webext](https://github.com/lyubomyr-shaydariv/uu-webext)

## Description

<em><strong>EARLY EXPERIMENTAL STAGE NOTE</strong></em>
<em>⚠️ Currently there is no way to opt-out sanitizing URLs (either all-opt-in by enabling the extension, or all-opt-out by disabling the extension)</em>
<em>⚠️ *.mozilla.org is unsupported due to Mozilla Firefox restrictions</em>

<strong>uU</strong> is a browser extension that sanitizes tracked URLs and bypasses tracked redirects for the following services (if possible). For the complete list of untracked URLs please refer <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/36bdfd211e5f1ed1e175fc1a31f6cbaf241da7a887ad794fa2e7c0cacad25474/https%3A//github.com/lyubomyr-shaydariv/uu-webext/blob/master.fx/README.md" rel="nofollow">https://github.com/lyubomyr-shaydariv/uu-webext/blob/master.fx/README.md</a>

## Rankings

- #129,847 — Overall

## Permissions and access

### Permissions

- `<all_urls>`
- `bookmarks`
- `contextMenus`
- `webRequest`
- `webRequestBlocking`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

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- [Automatic URL Cleaner - Strip Trackers and Tags](https://chrome-stats.com/d/automatic-url-cleaner-) — 1 users
- [ClearURLs](https://chrome-stats.com/d/clearurls) — 511,079 users, 4.26 / 5
- [au-revoir-utm](https://chrome-stats.com/d/au-revoir-utm) — 403 users, 4.38 / 5
- [Remove Tracking Params](https://chrome-stats.com/d/remove-tracking-params) — 9 users, 3.00 / 5
- [UTM Remover](https://chrome-stats.com/d/utm-remover) — 46 users, 3.00 / 5
- [Clear URL Tracker it](https://chrome-stats.com/d/clear-url-tracker-it)
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- [Link Cleaner (Remove UTM)](https://chrome-stats.com/d/link-cleaner-remove-utm) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/uu)