UA Switcher Firefox

UA Switcher

By: mxdyeah
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.

Features & Capabilities

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.

User Growth & Download Statistics

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:
mxdyeah
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/useragent-switcher/
Email:
co*****@mail.mxdyeah.top
Website:
https://www.mxdyeah.com/pages/addons/ua.html

Publisher Change History

2026-03-07: *****@mxdyeah.top to co*****@mail.mxdyeah.top

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User Reviews

界面简洁好用
by Mi*****, 2025-10-16

请问可以增加自定义ua吗
by Fi*****, 2025-04-16

非常好插件,使我linux端firefox可以用windows的ua来下载一些根据ua判断安装包的网站的exe文件
by Fi*****, 2025-03-11
View all user reviews ›

Is UA 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.

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

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • Critical ****** ****** ** ******* ***** ***** *** ** **** ** ***** **** ******** ****** *** ******** ********** * ******* ********
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
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.

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

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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Best UA Switcher Alternatives

Here are some Firefox add-ons that are similar to UA Switcher: