# UA Switcher

> User Agent Switcher is a powerful tool that enables users to simulate website access from different devices while helping developers test Bot blocking and spider crawling status, easily mastering website compatibility and security.

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

## Overview

- **ID:** `useragent-switcher`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** mxdyeah
- **Category:** web-development,privacy-security,appearance
- **Daily users:** 169
- **Weekly downloads:** 21
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 1.2
- **Last updated:** 2025-10-01
- **First published:** 2025-02-08
- **Size:** 82 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/useragent-switcher/)
- **Website:** [https://www.mxdyeah.com/pages/addons/ua.html](https://www.mxdyeah.com/pages/addons/ua.html)

## Description

User Agent Switcher (UA Switcher) is a lightweight extension that makes it easy to emulate devices, browsers, or search engine spiders by swapping the user-agent string and related JavaScript properties. With hostname-, window-, and random-based modes, it provides flexible control for developers and regular users alike.

Designed for cross-browser support (Chrome, Firefox, Edge, Opera), UA Switcher helps developers test website compatibility, bot blocking, and crawler access while offering privacy and access benefits for everyday browsing. It modifies properties such as navigator.userAgent for comprehensive simulation and supports high customization for targeted testing and workflow convenience.

## Rankings

- #9,034 — Overall
- #18 — kitchen
- #58 — switch
- #73 — pitch
- #106 — bot
- #134 — property

## Permissions and access

### Permissions

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

## Safety

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

## Similar extensions and apps

- [User-Agent Switcher Plus](https://chrome-stats.com/d/user-agent-switcher-plus) — 1 users
- [User Agent Switcher](https://chrome-stats.com/d/user-agent-switcher-iue) — 7 users
- [UserAgent Switch](https://chrome-stats.com/d/useragentswitch) — 13 users, 5.00 / 5
- [User-Agent Switcher and Simulator](https://chrome-stats.com/d/useragent-simulator-switcher) — 234 users, 4.64 / 5
- [User Agent Switcher – Change & Manage](https://chrome-stats.com/d/user-agent-switcher-change) — 3 users
- [User-Agent Switcher](https://chrome-stats.com/d/uaswitcher) — 62,755 users, 4.33 / 5
- [User-Agent Switcher](https://chrome-stats.com/d/user-agent-switcher-revived) — 14,459 users, 3.93 / 5
- [User Agent Switcher](https://chrome-stats.com/d/user_agent_switcher) — 1 users
- [User-Agent Switch](https://chrome-stats.com/d/user-agent-switch) — 1 users, 1.00 / 5
- [Random User-Agent (Switcher)](https://chrome-stats.com/d/random_user_agent) — 4,035 users, 4.00 / 5
- [Advanced User-Agent](https://chrome-stats.com/d/advanced-user-agent) — 5 users
- [User-Agent Switcher PRO](https://chrome-stats.com/d/user-agent-switcher-pro) — 48 users, 4.00 / 5

---

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