firebug

Cool extensions for Firebug:

- Code coverage
- Firecookie
- YSlow

Firebug-clone for IE (from Microsoft)

Quoted: The Microsoft Internet Explorer Developer Toolbar provides a variety of tools for quickly creating, understanding, and troubleshooting Web pages.

IE8 supports client-side debugging with a feature that looks identical to Firebug - yeah!

firebugの$xの引数にcontextを与えてcontextつきで評価できるようにする。

ThunderBoltを使ってFlashを表示すると、FirebugからコマンドベースでFlashを操作できるようになる

fx3でfirebugを動かすこと、consoleの困難

Would love to see other vendors add this event.

Quoted: IE went a step further and broadcasts the hashchanged event (the first browser to do so, as far as I know).

FirebugでFlashもデバッグ。