FiddlerHook

Introduction

This Firefox addon will hook Firefox to Fiddler, avoiding the hassle of manual configuration or restarting Firefox.

Download

Current versions of Fiddler install the FiddlerHook extension automatically; simply restart Firefox to see it.

Usage Instructions

To attach Firefox to Fiddler, click Monitor with Fiddler on Firefox's Tools menu.  To detach, uncheck the option.

To add the Launch Fiddler button to your toolbar, right-click the Firefox toolbar and choose Customize. 

In the dialog that appears, drag the Fiddler icon to the toolbar location of your choice.