User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0 Build ID: 20100101 Steps to reproduce: I opened devtools to debug one of my script which is written as es6 module. Actual results: In the list of all the scripts, there is only index.js(the main file loaded from html file). Rest of the modules loaded from index.js is not available in the list hence I can not debug the script. Expected results: The list should contain all the scripts loaded in the window.

Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0 I've also experienced this issue. Very simple page with several script elements, half traditional and half ES6 modules (type="module"); none of the ES6 module loaded scripts appears in the debugger. In my case, I can also say the page loads and functions fine in Chromium, but something is awry in Firefox and nothing loads.

Thanks for filing Dinesh

I believe this should be fixed. Dinesh, Richard can you confirm this is still an issue?