User-Agent Switcher

Name: User-Agent Switcher
Rating: 4.3457 (564 reviews)
Author: ntninja

By: ntninja

Easily override the browser's User-Agent string

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Features & Capabilities

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.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

ntninja

Daily users:

62,941 167

Rating:

4.35

(564) 1 new ratings

Version:

1.4.102 Last updated: 2026-04-23

Version code:

6228240

Creation date:

2017-05-06

Risk:

Permissions:

Size:

4.25MB

Email:

us*****@ninetailed.ninja

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 287 ▲ 3

Other rankings

#25 in Web Development

#72 in Privacy & Security ▲ 1

#2 in agent keyword 57

#3 in kitchen keyword 2

#4 in pitch keyword 35

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For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

ntninja

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/uaswitcher/

Email:

us*****@ninetailed.ninja

Website:

https://gitlab.com/ntninja/user-agent-switcher/issues

Publisher Change History

2024-07-30: us*****@ninetailed.ninja to us*****@ninetailed.ninja

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User Reviews

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.

Recent reviews

I was able to bypass an automatic captcha check on a webiste that I needed to login

by Fi*****, 2026-06-12

by Ju*****, 2026-05-27

by Fi*****, 2026-05-27

View all user reviews ›

Is User-Agent Switcher Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

User-Agent Switcher requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

User-Agent Switcher is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
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