I am trying to debug the whole mozilla firefox project, specifically to understand how javascript gets passed from Gecko to SpiderMonkey. In order to do that, I have created a solution on visual studio 2019 following the instructions in MDN documentation and Im able to run it from visual studio. However, I've set up breakpoints in many places but it doesn't seem to break in any of them. I have followed all instructions using the Child Process Debugging Settings to attach all threads, but still no luck. I'm interested in debugging the ScriptLoader.cpp under the dom_script project, it never seems to get there.