CSC/ECE 517 Fall 2013/ch1 1w11 sv

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Debugging Using Firebug

Firebug is a tool that enables web developers to debug, edit and inspect websites' components like CSS, HTML, DOM, JavaScripts. Firebug is free and open source software distributed under the BSD License.

Apart from providing debugging, Firebug is also used to analyse performance of websites.

Installation and Activation

Firebug can be installed as a Add-On/Plugin for Firefox. Firebug compatibility for different version of Firefox can be looked here.

Version for other browsers is under development.

Following are the ways to activate Firebug

  • Click F12 => Activates Firebug on same window as a bar at the bottom.
  • Click Ctrl+F12 => Activates Firebug on a separate window
  • Right click on the webpage and click on "Inspect Element with Firebug".

Panel Description

Debugging

HTML Debugging

To inspect an element

CSS Debugging

JavaScript Debugging

Summary

References

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