PUBLIC MARKS from camel with tags javascript & extension

The Jiffy Firefox Extension is written Bill Scott of Netflix. It adds an additional panel to Firebug that provides a visual view of the Javascript time measurements captured by Jiffy-Web. The extension is available under Creative Commons license. Jiffy-Web is a fine-grained and flexible website performance tracking and analysis suite written by Scott Ruthfield and the team at Whitepages.com. The library provides a simple way to insert and capture time measurements in your Javascript code and save them to a backend service for later analysis.

Debugging PHP With Firebug