The sixth  Web Exponents  tech talk features Rob Campbell's presentation on  Firebug. Rob works at Mozilla. He's one of the developers that Mozilla  dedicated to the Firebug effort last July. Rob is one of the main  drivers of the Firebug project, starting and heading up the weekly  concalls, and closely tracking bugs and releases. As one of the founders  of the Firebug Working Group, I'm excited to see Mozilla taking a more  active role in Firebug. The benefits are clear as we see more features  and greater stability with each Firebug release.

Why are your Web  pages taking so long to load? Did you ever want to inspect or edit HTML  while browsing? Tweak CSS instantly? In this article, learn to use  Firebug, a free, open source extension for the Firefox browser that  provides many useful developer features and tools. Using Firebug, you  can monitor, edit, and debug live pages, including HTML, CSS, JavaScript  code, and network traffic. Read on to learn how to speed up the tasks  of debugging and tuning your Web and Ajax applications with Firebug.

In the past, I found  myself spending countless hours tweaking my CSS and making everything  work in Internet Explorer just as it would in Firefox. Everything  changed when I found Firebug. In this tutorial, I am going to discuss  how to use Firebug to make CSS development faster, and share some tips  for a consistent look between browsers.

Ask web developers to name their  desert island Firefox extensions (ignoring for now the improbability of  having a laptop while stranded), and they’re bound to put Firebug at or  near the top of their lists. 

Print  stylesheets are an aspect of front-end engineering that rarely get any  love, and they’ll often be ignored until the last possible moment before  launching a site. Sometimes they might even be forgotten altogether,  but you should always make time to write at least a basic stylesheet  that formats things neatly, and reveals any elements that only make  sense on paper while hiding things like interactive controls that will  be useless when printed.

Firebug has become an indispensable tool for doing front-end  development of web applications. However, most developers are unaware of  some very useful features of this tool, especially when it comes to  debugging JavaScript code. I’ve personally seen many of my colleagues  relying on alert() function to reveal the flow of execution of their  complex codes. In this article we’ll look into some ways that Firebug  can help you debug JavaScript and boost your productivity.


Firecookie is an extension to Firebug that allows managing cookies  in your browser. Latest 1.0v has been also just released on AMO and it's  fully compatible with Firebug 1.5.

Firebug is one of the reasons that I changed to Firefox (from  Camino, a faster, less memory intensive browser). It is so handy for  checking under the hood of websites and anyone who does anything with  CSS should know how to use it!

That's right folks. It's time for another screencast! This time, I  thought it'd be nice to cover a little bit of Firebug. I've actually  been meaning to put together a few screencasts on Firebug. If you like  this one, definitely let me know and I'll be sure to put some more  together.

Firebug is one of the most popular tools used by web developers. In  this article, we’ll take a closer look at ten of its most attractive  features.

This is a quick screen cast on how to test live css rule with  firebug before committing your changes to yours stylesheet. This is  quite a time saver! 

It was great to see all the positive responses to the screencast I  recently recorded with Craig Shoemaker on how to use Firebug’s console  to learn jQuery. That being my first screencast, I really appreciate all  of your support.

It's been a while since I have started contributing to Firebug.  Everybody use this amazing Firefox extension and I am having great time  with exploring the underlying architecture. Well, it was hard time at  the beginning ;-)  I had to dive into unknown waters and understand  what's under the hood. I remember it quite exactly, I have spent many  hours with debugging a debugger trying to understand how it works.

Last night, I was testing out someone's jQuery queue() and  dequeue() code  and I had a bug that was just driving me crazy; no  matter how simple I made my test, my queued callbacks kept firing twice.  To give you some insight into how simple my code was, take a look at  this demo:
 Yahoo’s  YSlow
Yahoo’s  YSlow is a ‘must have’ Firefox add-on and is an extension (for  performance) to the Firebug tool. YSlow analyzes web pages and suggests  ways to improve the performance of web pages based on a set of rules for  high performance web pages laid out by Yahoo. There are 34 rules laid  out by Yahoo and YSlow is capable of testing 22 of them. 


This post gives you an overview of the best Firebug extensions that  may increase your productivity even further.

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