There are multiple times in the last few months where my workflow would have been drastically simplified if only I had access to React DevTools in the browser toolbox.

This is obviously particularly useful now that the majority of our tools are written in React.

Our product manager was also asking for this because then he could help investigate an issue he is facing.

Ironically, this is most likely a small thing to fix so we should at least take a look.

I think this is bug 1370362. And, yes, very useful!