# Algorithmic Personalization Project

> The extension makes slight modifications to your YouTube recommendations, and records how you interact with it. No personal information is tracked and collected. Part of an academic research project into the long-term effects of personalization.

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

## Overview

- **ID:** `algorithmic-personalization`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Algorithmic Personalization Project
- **Category:** search-tools,social-communication
- **Version:** 3.6.0
- **Last updated:** 2024-04-23
- **First published:** 2023-08-20
- **Size:** 908 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/algorithmic-personalization/)
- **Website:** [https://personalization.csail.mit.edu/](https://personalization.csail.mit.edu/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/algorithmic-personalization/privacy/](https://addons.mozilla.org/firefox/addon/algorithmic-personalization/privacy/)

## Description

Our extension tweaks YouTube's recommendations: replacing some personalized recommendations with generic ones for logged-out users. It logs non-personal data: video clicks, recommendation types, and timestamps. Operates solely on YouTube.

## Rankings

- #140,036 — Overall
- #30 — algorithm

## Permissions and access

### Permissions

- `*://*.youtube.com/*`
- `*://*.youtu.be/*`
- `*://personalization-server.csail.mit.edu/*`
- `tabs`

### Content script matches

- `*.youtube.com`
- `*.youtu.be`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions 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).

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