Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of UA Switcher

UA Switcher by mxdyeah

User Agent Switcher 是一款强大的工具,可帮助用户模拟不同设备访问网站,同时助力开发者测试 Bot 屏蔽与爬虫爬取状态,轻松掌握网站兼容性与安全性。

5 (3 reviews)5 (3 reviews)
81 Users81 Users
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
About this extension
User Agent Switcher 是一款强大的工具,能够帮助用户和开发者轻松切换用户代理(User-Agent),从而模拟不同设备、浏览器或搜索引擎蜘蛛访问网页。它不仅支持高度自定义,允许用户根据主机名、窗口或随机模式设置 User-Agent,还能修改 JavaScript 中的 userAgent 等属性,确保全面模拟目标环境。对于开发者而言,它可以用于测试网站在不同设备上的兼容性,以及测试 Bot 的屏蔽和蜘蛛的爬取状态;对于普通用户,则可用于隐私保护或访问受限网站。操作简单易用。
Developer comments
已更新 1.2 版本,支持自定义 UA 和美化了界面,欢迎各位继续提出需求!
Rated 5 by 3 reviewers
Sign in to rate this extension
There are no ratings yet

Star rating saved

5
3
4
0
3
0
2
0
1
0
Read all 3 reviews
Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access your data for all websites
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
1.2
Size
81.58 KB
Last updated
19 days ago (Oct 1, 2025)
Related Categories
  • Web Development
  • Privacy & Security
  • Appearance
License
MIT License
Version History
  • See all versions
Tags
  • privacy
  • search
  • security
  • user scripts
Add to collection
Report this add-on
Go to Mozilla’s homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.