Web Development Evolved - The Firebug you have known and loved
Monitor WebSocket connections
Trigger HAR export any time directly from within a page.
Firefox plugin for jQuery development
SDK for Developer Tools extensions in Firefox
Remote debugger protocol inspector
Firebug manual test cases
ConsoleExport is a Firebug extension that allows exporting logs from the Console panel.
Extension examples for Firefox developer tools
Next Firebug generation built on top of native Firefox developer tools
Firebug extension - export data from the Net panel
Online summary of automated test results
Firebug Swarms - Multi-extension Firebug installations tested in a browser
All things Firefox, Firebug and more
Firebug Lite: doing the Firebug way, anywhere.
[PROTOTYPE] Firefox / Firebug plugin for Angular development
Firebug Development System