# User-Agent Switcher

> Easily override the browser’s User-Agent string

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

## Overview

- **ID:** `uaswitcher`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ntninja
- **Category:** web-development,privacy-security
- **Daily users:** 62,755
- **Weekly downloads:** 1,157
- **Rating:** 4.33 / 5 (573 ratings)
- **Version:** 1.4.102
- **Last updated:** 2026-04-23
- **First published:** 2017-05-06
- **Size:** 4.25 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/uaswitcher/)
- **Website:** [https://gitlab.com/ntninja/user-agent-switcher/issues](https://gitlab.com/ntninja/user-agent-switcher/issues)

## Description

**User-Agent Switcher** is a powerful Chrome extension that allows you to easily override your browser's User-Agent string. This means you can impersonate different browsers or devices to access web pages under various conditions, such as bypassing subscription walls, testing mobile versus desktop views, or accessing sites that require a specific browser.

The extension also modifies related `navigator.*` JavaScript properties to ensure a convincing emulation. While it doesn't modify the browser's core functionalities, it helps you test and navigate websites under different user-agent settings. User-Agent Switcher includes a robust database and tools to generate accurate User-Agent strings and works across platforms, including Firefox for Android. The extension is in maintenance mode, with community contributions welcomed, and it encourages translation contributions to support international users.

## Rankings

- #291 — Overall
- #25 — Web Development
- #70 — Privacy & Security
- #2 — agent
- #3 — kitchen
- #5 — agenda

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `webNavigation`
- `webRequest`
- `webRequestBlocking`
- `<all_urls>`

## 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 recently changed publisher email (might be a transfer in ownership)

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

## Review summary

Reviewers largely report two positives: the add-on can noticeably speed up some sites and is easy to use, with strong flexibility for power users. The top recurring drawbacks are Cloudflare/anti-bot verification loops and reliability problems where the extension may not work consistently.

### Pros

- Significant performance improvements on certain sites (e.g., Google Maps, YouTube) when using the switcher.
- Easy to use and generally does what it advertises, with straightforward setup.
- Highly flexible and powerful for advanced users, offering a wide range of user-agent options.

### Cons

- Cloudflare CAPTCHA/verification loops triggered on many sites when spoofing the user agent.
- Reliability issues; some reviewers report that it doesn’t work or breaks site functionality.

## Similar extensions and apps

- [User Agent Switcher](https://chrome-stats.com/d/user-agent-switcher-iue) — 7 users
- [User-Agent Switcher Plus](https://chrome-stats.com/d/user-agent-switcher-plus) — 1 users
- [UA Switcher](https://chrome-stats.com/d/useragent-switcher) — 169 users, 5.00 / 5
- [User-Agent Switcher and Manager](https://chrome-stats.com/d/user-agent-string-switcher) — 85,389 users, 4.08 / 5
- [User-Agent Changer](https://chrome-stats.com/d/user-agent-changer2901) — 44 users
- [User-Agent Swithcer](https://chrome-stats.com/d/custom-user-agent-swithcer) — 4.87 / 5
- [User Agent Switcher](https://chrome-stats.com/d/user_agent_switcher) — 1 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) — 14,459 users, 3.93 / 5
- [Advanced User-Agent](https://chrome-stats.com/d/advanced-user-agent) — 5 users
- [Random User-Agent (Switcher)](https://chrome-stats.com/d/random_user_agent) — 4,035 users, 4.00 / 5
- [User Agent Modifier](https://chrome-stats.com/d/user-agents-modifier) — 3 users

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