# Stepping through your code [edit]

This page describes how to step through your code with Firebug.

## Introduction

Stepping into a function or stepping over a function can help you see exactly what is going on within your JavaScript code. You can use stepping to navigate through your code in Firebug, similar to the way that stepping works in the Aptana JavaScript debugger.

## Instructions

To step through your code:

1. In the lower right corner of Firefox, click the Firebug button to start Firebug.
2. Click the tab to view the Script tab.
3. Use the Step Over , Step Into , and Step Out buttons to step through your code..

## Related Topics

- About Firebug
- Installing the Firebug extension
- Inspecting HTML
- Inspecting CSS
- Adding watch expressions
- Monitoring XMLHttpRequests
- Editing a web page
- Writing to the Firebug console
- Setting breakpoints in Firebug
- Profiling code performance

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Category: AptanaHelp