該插件可以用來切換并偽造 User-Agent 設定，比如上 m.qidian.com (起點手機版) 如果不是手機的 UA 則提示用手機訪問手機站。
使用前：
使用后
后臺設定：
區(qū)分符(就是右上角的圖標表明當前使用的UA簡稱)：
Spoofs & Mimics User-Agent strings.
Ever needed to quickly switch between user-agent strings on the fly? Developing a site that needs to work on both mobile browsers and desktop browsers? Sick of some archaic site blocking you because you’re not using Netscape 4?
The User-Agent Switcher for Chrome is the answer. With this extension, you can quickly and easily switch between user-agent strings. Also, you can set up specific URLs that you want to spoof every time.
This version is new and improved, and not only modifies the user-agent sent with the HTTP requests, but also the javascript objects in the page.
Version 1.0.15 adds the concept of “groups”, so you can stack similar user-agent strings together, and does a bit of a visual refresh on the options page.
