How to debug Node.js with Firefox?

Question

I'm aware of how to access the Chrome Dev Tools with Google Chrome to debug Node.js applications: just go to about://inspect.

I encountered a line of text on MDN mentioning that Firefox could be used for Node.js applications, but going to about://inspect in Firefox doesn't work. I'd like to know how this would be done in Firefox, if it is indeed possible.

It's a fairly complicated process for Firefox. I'd recommend their own guide on connecting remote devices. — Obsidian Age
– Obsidian Age, Commented Nov 12, 2017 at 20:37

eritbh · Accepted Answer · 2019-06-25 17:17:17Z

16

Because Firefox uses a different Javascript engine (Gecko) than Node.js (V8), it's impossible to use the Firefox dev tools to debug Node scripts. As of this post, MDN says as much in their "Remote Debugging" article:

You can connect the developer tools to Gecko-based runtimes...

https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging

answered Jun 25, 2019 at 17:17

eritbh

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Skatox · Accepted Answer · 2018-03-31 15:05:08Z

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There's a tool called node-firefox that you can use for that, you can download it from:

npm install node-firefox

Here's the source code: https://github.com/mozilla/node-firefox

And a introductory guide: https://hacks.mozilla.org/2015/02/introducing-node-firefox/

answered Mar 31, 2018 at 15:05

Skatox

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1 Comment

Sebastien H. Over a year ago

actually this concerns front-end debugging, not server-side debugging as chrome does

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