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Firefox debugger

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Is it normal that I can't edit JS(JavaScript) in debugger? If not please help me turn it on.

Is it normal that I can't edit JS(JavaScript) in debugger? If not please help me turn it on.

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Yes that is expected behavior, you can't edit the code in the debugger.

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Why we can't longer edit source with debugger? that was still available previously or this article is using an entirely different product perhaps developer browser? https://raygun.com/blog/debug-javascript-firefox/