The JavaScript Debugger enables you to step through JavaScript code and examine or modify its state to help track down bugs. You can use it to debug code running locally in Firefox or running remotely, for example on an Android device running Firefox for Android. See remote debugging to learn how to connect the debugger to a remote target. You probably want to pause the execution of your code, in order to see what is going on at various points. There are multiple ways to tell the Debugger how and when to pause. You probably want to see the value of variables or expressions, either during execution or when it is paused.

Features

  • The Firefox Debugger was built in Github for the first 3 years of its development
  • Over 300+ volunteers contributed thousands of commits
  • Debugger can be a great place to collaborate on the next iteration of developer tools
  • Checkout our dashboard to find good first bugs
  • Use watchpoints for property reads and writes
  • Set a logpoint
  • Set watch expressions

Project Samples

Firefox Debugger Screenshot 1

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Categories

Software Development, Debuggers

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2022-05-03
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