Chrome

我的Sample：https://hatter-source-code.googlecode.com/svn/trunk/tests/p2hatter

Google的Sample：http://developer.chrome.com/extensions/samples.html

FireFox

Opera

UserAgent - http://www.useragentstring.com/pages/useragentstring.php

What's My UserAgent: http://www.whatsmyuseragent.com/

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