IntelliJ IDEA
IntelliJ IDEA – the Leading Java and Kotlin IDE, by JetBrains
Features
Debugging JavaScript in Mozilla Firefox
IntelliJ IDEA 9M1 supports debugging of JavaScript code in Mozilla Firefox. Just create a JavaScript Debug configuration, select Firefox from the Browser list and click OK:
IntelliJ IDEA automatically installs plugin for Mozilla Firefox and executes the configuration.
Note that you need to clear Make option under Before launch group before starting debugger to work around a bug that will be fixed in next Maia EAP.