Please note, this is a STATIC archive of website developer.mozilla.org from 03 Nov 2016, cach3.com does not collect or store any user information, there is no "phishing" involved.

Our volunteers haven't translated this article into فارسی yet. Join us and help get the job done!

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 in a Firefox OS device or Firefox on Android. See remote debugging to learn how to connect the debugger to a remote target.


User Interface Tour

To find your way around the debugger, here's a quick tour of the UI.


How to

To find out what you can do with the debugger, see the following how-to guides:


Reference

Document Tags and Contributors

 Last updated by: wbamberg,