https://getfirebug.com/wiki/index.php/Firebug_Extensions#Firecookie
https://addons.mozilla.org/zh-CN/firefox/addon/firequery/
支持jquery
https://addons.mozilla.org/firefox/addon/firelogger/支持 php python
https://addons.mozilla.org/zh-CN/firefox/addon/illuminations-for-developers/ Some support for Dojo 1.5+, SproutCore, YUI2, YUI3, Closure Lib, qooXdoo, jQuery UI, EmberJS, BackboneJS (including StackMob and Parse), Uki, Eny
LiveCoder
LiveCoder lets you poke at the browser's DOM, just like Firebug. But LiveCoder also lets you examine Firebug itself. In addition to examining the DOM, you can alter it including changing functions. This is a great way to debug your code and test fixes more quickly.
Visit website
Download. [getlivecoder.com] (experimental)
Author: Steve Souders.
