nick000000

This is probably a tool that every wordpress developer needs. Use it to see through the Firebug console all important things like database queries, $_POST, $_GET, $_FILES and other evnironment details.

Developer monitor by VentureGeeks

Check all the running queries and other development information in Firebug. Great to debug performance issues in live web sites.

corischlegel

I like the very simple API to FirePHP and find it very useful for debugging WordPress plugins and themes. There are a few other plugins out there that integrate FirePHP, notable WP-FirePHP and WP-Logger, but both add complexity that I don’t want to have to deal with for a quick debugging task.
It wouldn’t be that hard to install the FirePHP core and add the includes to wp-config.php, and that’s what I generally do on sites that I control, but having this plugin in the Wrodpress.org/extend directory means that I’ll be able to install it on the fly for a blog that someone hasn’t given me shell or ftp access to.
<h3>Plans</h3>
I don’t think I’ll do a whole lot more with this, since I want to keep it pretty simple, but I plan to make sure the plugin loads first (see wp-logger) and perhaps add a simple options screen. Might also add PHP4 support, but probably not.

Simple WP FirePHP

Extremely simple mechanism for embedding FirePHP into WordPress to use FirePHP during WP Development.

Developer monitor by VentureGeeks vs Simple WP FirePHP