You can now test JavaScript debugging with Pernosco

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Frederik Braun

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Oct 7, 2025, 7:14:19 AM (3 days ago) Oct 7
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Hi all,

Our friends at pernosco have worked with us to bring JavaScript support into their tools. This means that you will be finally able to step through JavaScript code (e.g., Firefox UI or web content) on top of the existing native code support.

Kyle has finished a working prototype which is now ready for testing, but please do not expect production-grade functionality on all ends. The full details on how to test and where to report issues is in our Pernosco JavaScript Support Doc.

We will move this to Firefox source docs, once we are confident that the existing setup is stable and working for everyone.


Best,
Freddy
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