# User Agent

> Change the identity your browser announces — User-Agent, client hints and navigator properties — always as one coherent set. Per-site rules, a free-form User-Agent field, and a built-in detection diagnostic. No account, nothing collected.

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

## Overview

- **ID:** `user-agent`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** SandVPN
- **Category:** web-development,privacy-security
- **Daily users:** 371
- **Weekly downloads:** 32
- **Rating:** 3.29 / 5 (7 ratings)
- **Version:** 2.1
- **Last updated:** 2026-07-29
- **First published:** 2022-09-09
- **Size:** 43 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/user-agent/)

## Description

The User Agent Chrome extension allows seamless switching of your browser's user agent string. It provides several advanced methods for user-agent spoofing, letting you test how websites detect or respond to different browsers and devices. With this tool, users can quickly and easily change their browser's identity for testing or privacy purposes. The extension is designed for efficiency and versatility, helping developers, testers, and privacy-conscious users verify browser compatibility or mask their browsing fingerprint. Test your browser's spoofing effectiveness with the included link: https://webbrowsertools.com/useragent/

## Rankings

- #5,989 — Overall
- #6 — agent
- #23 — agenda
- #93 — property
- #167 — string
- #187 — rule

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `webNavigation`
- `storage`
- `tabs`
- `http://*/*`
- `https://*/*`

## 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).

## Similar extensions and apps

- [User-Agent Switcher and Manager](https://chrome-stats.com/d/user-agent-string-switcher) — 84,524 users, 4.08 / 5
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- [User-Agent Changer](https://chrome-stats.com/d/user-agent-changer2901) — 44 users
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- [UserAgent Switch](https://chrome-stats.com/d/useragentswitch) — 13 users, 5.00 / 5
- [User Agent Editor](https://chrome-stats.com/d/user-agent-editor) — 62 users, 4.64 / 5
- [User Agent Modifier](https://chrome-stats.com/d/user-agents-modifier) — 3 users
- [User-Agent Switcher and Simulator](https://chrome-stats.com/d/useragent-simulator-switcher) — 234 users, 4.64 / 5
- [User-Agent Switcher](https://chrome-stats.com/d/user-agent-switcher-revived) — 14,240 users, 3.93 / 5
- [User-Agent Auto Spoofer](https://chrome-stats.com/d/user-agent-auto-spoofer) — 8 users

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