I am working on a proof of concept using Angular JavaScript.
How to debug the Angular JavaScript code in different browsers (Firefox and Chrome) ?
Since the add-ons don't work anymore, the most helpful set of tools I've found is using Visual Studio/IE because you can set breakpoints in your JS and inspect your data that way. Of course Chrome and Firefox have much better dev tools in general. Also, good ol' console.log() has been super helpful!