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. Jiffy is compatible with Firefox 1.5 - 3.5.* Jiffy-Web is a fine-grained and flexible website performance tracking and analysis suite written by Scott Ruthfield, Ben Maldonado, Don Shanks, Travis Pearl of Whitepa
