# Agentium: User agent switcher

> Agentium is an extension for controlling the user agent identity reported by your browser, allowing you for instance to view the mobile version of a website on your computer.

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

## Overview

- **ID:** `agentium`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Chuan Ji
- **Category:** web-development
- **Daily users:** 64
- **Weekly downloads:** 5
- **Rating:** 3.67 / 5 (3 ratings)
- **Version:** 0.1.2resigned1
- **Last updated:** 2024-04-26
- **First published:** 2018-11-04
- **Size:** 1.24 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/agentium/)
- **Website:** [https://github.com/jichu4n/agentium](https://github.com/jichu4n/agentium)

## Description

**Agentium: User Agent Switcher** is a versatile Chrome extension that enables users to control the user agent identity reported by their browser. This functionality allows you to view the mobile version of websites on a desktop or emulate other popular browsers. The extension offers a quick selection from a default list of popular user agents and supports adding custom ones, all within a simple and clean user interface.

Agentium is open-source software released under the Apache 2.0 License. Developers and users are welcome to contribute or adapt the tool via its GitHub repository, enhancing its customization and versatility. Whether for web development, testing, or privacy needs, Agentium offers a straightforward approach to user agent switching.

## Rankings

- #14,435 — Overall
- #15 — agent
- #60 — agenda
- #68 — kitchen
- #215 — switch
- #222 — contribute

## Permissions and access

### Permissions

- `contextMenus`
- `storage`
- `webRequest`
- `webRequestBlocking`
- `http://*/*`
- `https://*/*`

## 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/agentium)