Tiny JavaScript Debugger
TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavsScript.
Javascript Debugger (Venkman)
Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aims to provide a powerful JavaScript debugging environmen ...
Firefox Developer Tools
Examine, edit, and debug HTML, CSS, and JavaScript on the desktop and on mobile.
Omnibug
Omnibug is a plugin for the Google Chrome and Mozilla Firefox browsers to ease developing and debugging web metrics implementa ...