User-Agent Switch PC b8q EN
Dejsp · Firefox
Take control of how websites see you. Easily manage and switch your browser's User-Agent on a per-site basis to access mobile/desktop versions or for web development testing.
<all_urls>），意味着它可以读取你在任意站点的页面内容，包括已登录的页面。这是许多扩展正常工作的必要条件，但也值得你确认来源可信。
简介
Have you ever been blocked from a website for using the "wrong" device? Or needed to test how your responsive web design looks on a mobile screen? Smart UA Manager is the essential tool that gives you complete control over your browser's User-Agent on a per-website basis.
This lightweight and powerful extension allows you to set specific User-Agent (UA) rules for any domain you visit. The rules are saved and automatically applied every time, ensuring a seamless experience without needing to change settings on every visit.
Key Features:
Per-Site Management: Create and manage unique User-Agent rules for each website. Your settings for one site won't affect others.
One-Click Presets: Instantly switch to a standard Desktop (Windows Chrome) or Mobile (Android Chrome) User-Agent with a single click in the popup menu.
Fully Custom User-Agent: For advanced control, you can define and save your own custom UA string for any domain.
Active Domains Dashboard: Easily see a list of all websites with active UA rules and remove them at any time from the extension's popup.
Deep Spoofing: Smart UA Manager goes beyond just changing the HTTP header. It also modifies the navigator.userAgent property within the page's JavaScript, providing deeper and more reliable compatibility with modern websites that use client-side detection.
Simple & Efficient: A clean, intuitive interface makes managing your UAs effortless. The extension runs efficiently in the background without slowing down your browser.
Who is this for?
Web Developers & QA Testers: Quickly test mobile and desktop versions of your site without needing multiple devices.
Power Users: Access mobile-only deals, bypass "use our app" banners, or view sites that incorrectly block your browser.
Privacy-Conscious Individuals: Mask your browser's default fingerprint by providing a more common User-Agent.
Take control of your web browsing experience with Smart UA Manager!
User-Agent Switch PC b8q 是做什么的
User-Agent Switch PC b8q 是一款面向 Firefox 的隐私与安全类扩展，主要用来拦截追踪器、屏蔽广告、管理 Cookie、加固浏览器指纹。官方对它的介绍是：Take control of how websites see you. Easily manage and switch your browser's User-Agent on a per-site basis to access mobile/desktop versions or for web development testing.在Firefox 附加组件商店（AMO）上，它当前版本 1.0.0，约 99 名用户。
适合什么人用
从功能定位看，User-Agent Switch PC b8q 更适合在意上网被跟踪、希望减少广告干扰的用户。如果你平时只是偶尔遇到相关需求，用浏览器自带功能也能凑合；但如果这件事每天都发生，装一个专门处理它的扩展通常比手动操作省事得多。需要注意的是它作用于所有网站，装上后建议先观察一两天，确认不影响常用站点的正常使用。
怎么安装 User-Agent Switch PC b8q
- 打开Firefox 附加组件商店（AMO）上的官方页面；
- 点「添加到浏览器」并确认权限提示；
- 装好后在扩展列表里固定图标，方便随时开关。
本站只做索引与介绍，安装包来自官方商店。如果商店页面提示当前地区不可用，说明该扩展未在你所在区域上架。
常见问题
User-Agent Switch PC b8q 是免费的吗？
User-Agent Switch PC b8q 在Firefox 附加组件商店（AMO）免费提供下载。它是浏览器扩展，装上就能直接用，不需要注册账号。
User-Agent Switch PC b8q 安全吗？
它只申请了 0 项权限，范围比较克制，没有申请「读取所有网站数据」这种大权限。
User-Agent Switch PC b8q 支持哪些浏览器？
当前收录的版本来自Firefox 附加组件商店（AMO），适用于 Firefox。同一个扩展在其他商店可能有对应版本，但功能与版本号不一定相同。
怎么卸载 User-Agent Switch PC b8q？
在扩展管理页找到 User-Agent Switch PC b8q，点移除即可。它在本地保存的设置会一起清掉，不会残留数据。
权限清单 来自 manifest.json 原文
站点访问 1
<all_urls>
接口权限 4
activeTabstoragewebRequestwebRequestBlocking