Mozilla Hacks | Firefox Debugger @mozhacks | Uploaded 6 years ago | Updated 17 hours ago
Josh Marinacci walks you through current improvements to the Firefox Debugger launching in Firefox 61. Read "Debugging Modern Web Applications" to learn more about the new debugger and how it works:

https://hacks.mozilla.org/2018/05/debugging-modern-web-applications/

The post covers updated Source Map features that let you work with modern frameworks and new developer tool chains.

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