Firebug 1.11 正式版发布了，兼容 Firefox 17-20
新特性包括：
SPDY Support
Performance Timing Visualization
CSS Query Selector Tool
New include() command
Observing window.postMessage()
Copy & Paste HTML
Styled Logging
Log Function Calls
Improved $() and $$() commands
Autocompletion for built-in properties
主页：http://getfirebug.com/
下载：https://github.com/firebug/firebug
来自:开源中国社区
