Web Development Evolved - The Firebug you have known and loved
Extension examples for Firefox developer tools
Next Firebug generation built on top of native Firefox developer tools
Firefox plugin for jQuery development
Trigger HAR export any time directly from within a page.
Monitor WebSocket connections
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.
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