RSS Feeds

Receive a regular RSS feed from our latest, most popular and recommended downloads

Latest downloads feed

Get a regular RSS from our most latest downloads

Most popular downloads feed

Get a regular RSS from our most popular downloads

Recommended downloads feed

Get a regular RSS from our recommended downloads


Subscribe to either one of our two newsletters for regular updates and information

Downloads newsletter

This is a weekly newsletter with download news, updates and other information

This is a monthly newsletter with software store information, offers and deals

Firebug for Firefox 2.0.13

Debug HTML, CSS and JavaScript in any web page

by Mike Williams

Our Rating:
Your Rating:
Login to rate
Based on 0 ratings
License: Freeware
Operating Systems: Linux, Mac OS X, Windows 10, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP

Firefox 5 or higher

Languages: English
Software Cost: Free
Date Updated: 06 November 2015
Watchlist: Add download to my watchlist
Downloads To Date: 10302
Developer: Firebug team
RSS News Feed:
Twitter Feed:!/firebugnews
Back in stock! Buy Malwarebytes Anti-Malware Premium v2 with a 1-PC LIFETIME license, only $27.95, from
Debug HTML, CSS and JavaScript in any web page

Firebug is a Firefox add-on which integrates a host of essential web development tools into the browser.

A powerful source editor shows you the HTML source as it's being transformed by JavaScript, highlighting changes as they happen so they're easy to spot. You can view the properties of any individual element in a click or two, click on page objects to instantly see the HTML and CSS behind them, and even create, edit or delete HTML elements and see the changes right away.

Firebug's CSS tools make it easy to see which rules are styling individual page elements. Or you can view entire style sheets, if you prefer. If there are problems then you're able to disable any CSS property in a click, just to see how a page appears without them. And not only does Firebug allow you to edit CSS properties, it also knows which keywords you can use, so you don't have to remember every option yourself: just press the Up and Down arrows and the program will cycle through all the possibilities.

Firebug also includes a very powerful JavaScript debugger, which is able to step through scripts, can pause execution on particular lines, break on errors, watch expressions, and more. Or, if everything works, but performance is poor and you're not sure why, then Firebug's JavaScript profiler could help you figure out the problem.

Other tools on offer will help you to check page load times, understand JavaScript, CSS or XML errors, or log in-depth details on what's happening as your page runs.

Version 2.0.13 (Changelog)


Firebug offers an excellent set of web development tools, and despite all its power remains generally very easy to use

Your Comments & Opinion
Related Download Articles

UltraEdit 22.20

Trial Software

Take a look at this powerful and amazingly versatile editor


WeBuilder 2015

Trial Software

Comprehensive web code editor with strong HTML, CSS, PHP, ASP and Ruby support

Aptana Studio 3.6.1

Aptana Studio 3.6.1

Open Source

Highly extensible web application IDE with powerful tools for HTML, CSS and JavaScript


EditPlus 3.51

Trial Software

Get a text editor, HTML editor, PHP editor, Java editor and Hex viewer in one powerful package

Other Download Articles From This Category

ImageMagick 6.9.2-7

Open Source

Create, edit and convert images from the command line

Detect It Easy

Detect It Easy 0.99


Find out more about almost any file Installer Installer 3.0.20


Easily package your portable apps with this effective installation tool

JPEXS Free Flash Decompiler

JPEXS Free Flash Decompiler 7.0.1

Open Source

Decompile/ edit/ extract resources from Flash SWFs

From Softwarecrew

Please wait while my feed loads

See more posts...

Our Price: $22.95
RRP: $29.95
Saving 23%
Buy Now

Spotlight: Free Full Software

WhatsApp Messenger 2.12.12

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

Version 2.12.12 brings:

• Links that you share or receive will now include a rich preview. When sending a link, you have the option to not include a rich preview.
• Additional 3D Touch features: You can now quickly Peek and Pop chats.
• Redesigned Settings tab. 
• You can now view all your starred messages across all your chats in Settings — Starred Messages.