# Change User-Agent

> A Firefox extension to change the User Agent to one custom string permanently.

Canonical page: [https://chrome-stats.com/d/change-user-agent](https://chrome-stats.com/d/change-user-agent)

## Overview

- **ID:** `change-user-agent`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** amria
- **Category:** web-development,privacy-security
- **Daily users:** 102
- **Weekly downloads:** 3
- **Rating:** 3.50 / 5 (4 ratings)
- **Version:** 1.0
- **Last updated:** 2025-01-02
- **First published:** 2024-12-31
- **Size:** 9.84 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/change-user-agent/)

## Description

**Change User-Agent** is a Firefox extension that allows users to permanently modify their browser's User-Agent string to a custom value of their choice. This flexibility enables improved privacy, testing, and compatibility with websites that rely on User-Agent detection.

With this extension, users can easily override the default identification headers sent by their browser, ensuring that websites receive a consistent or tailored identity. It's an ideal tool for developers, privacy-conscious individuals, and anyone needing to simulate different browser identities without manual effort each session.

## Rankings

- #11,614 — Overall
- #13 — agent
- #33 — exchange
- #40 — agenda
- #90 — string
- #104 — change color

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `storage`
- `activeTab`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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 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/change-user-agent)