Firefox Extensions to Debugger

Discover Firefox Extensions to Debugger.

Allows developers to execute code step-by-step, inspect variables, and identify issues during runtime. This is the Embedded Debugger.

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Firebug

Open Source

Firebug was a powerful, open-source web development tool tightly integrated with the Firefox web browser. It provided a comprehensive environment for debugging, editing, and monitoring HTML, CSS, and JavaScript live on any web page.