Like most web developers or SEO professionals, I use a vast array of tools to get the job done. I use a combination of desktop and web applications, some purchased and some free. Everyone I know has downloaded a free copy of Mozilla Firefox, but few realize that by installing some of the 1,500 free extensions they can eliminate the need for most of the other applications they currently use. Below are my 13 favorite extensions for web professionals (in no particular order):

HTML Validator (http://users.skynet.be/mgueury/mozilla/) – validates web pages to the W3C HTML standards with a simple green check in the corner of the page if the page validates, a red check if it doesn’t, and a yellow exclamation point if there are warnings. It also includes an enhanced view of source code that allows you to see where errors are within the code.

FireFTP (https://addons.mozilla.org/firefox/684/) – free, secure, cross-platform FTP client that provides easy and intuitive access to FTP servers. This eliminates a piece of software for those of you who use a separate program for FTP.

Professor X (https://addons.mozilla.org/firefox/2823/) – lets you view header information without having to view source code. The page “slides” down and Professor X shows you the contents of the page's head element, including Meta, Script and Style content.

NikkelWHOIS (https://addons.mozilla.org/firefox/2646/) –view the WHOIS information for any page by clicking the button on the top-right of the browser.

IE Tab (http://ietab.mozdev.org) – sick of swapping between Internet Explorer and Firefox when testing out a web page you’re developing? With IE Tab you can view Internet Explorer in a Firefox Tab!

FireBug (https://addons.mozilla.org/firefox/1843/) – an advanced debugger console that lets you monitor your JavaScript, CSS, HTML and Ajax.

Codetech (https://addons.mozilla.org/firefox/1002/) – web page editor that has the feel of Dreamweaver. An amazing extension for anyone doing web design that doesn’t want to fork out a few hundred dollars for Dreamweaver.

Server Switcher (https://addons.mozilla.org/firefox/2409/) – easily switch between sites on your development and live servers by clicking the switch server icon.

SEO for Firefox (http://tools.seobook.com/firefox/seo-for-firefox.html) – pulls useful market research data right into Google's and Yahoo!'s search results, including Google PR, Age, links, Alexa rank, WHOIS, and more. It also adds a few helpful links to the top of the search pages, including Google Trends, Google Traffic Estimator, and the Overture View Bid tool.

Yet Another Window Resizer (https://addons.mozilla.org/firefox/2498/) – allows you to resize browser window to default screen resolutions.

AdSense Preview (https://addons.mozilla.org/firefox/2132/) – preview the Google AdSense ads that would appear on that page. This is incredibly useful if you are considering putting AdSense on a page and don’t want to go through the hassle of signing up for an account and putting the ads up just to see what type of ads will show.


Screen grab (https://addons.mozilla.org/firefox/1146/) – takes a screenshot of the webpage and saves it as an image file. This saves a ton of time compared to the method I used to use – take a screenshot and open Adobe Photoshop to crop the image.

Server Spy (https://addons.mozilla.org/firefox/2036/) – indicates what brand of HTTP server (Apache, IIS, etc.) runs on the visited site on the lower-right side of the browser.

Adam McFarland owns iPrioritize - simple to-do lists that can be edited at any time from any place in the world. Email, print, check from your mobile phone, subscribe via RSS, and share with others.

bay area web design writes: I love to use Firefox. Firefox is a best explorer and having all ads on which are necessary for web master users.

4:48:45 Wed Mar 17 2010 CDT


John writes: Thank you for the list. Will be installing some of the addons and try them out myself.

22:14:36 Thu Mar 11 2010 CST


rankONE writes: funny enough it is now 2009 and some of these tools are still useful "seo for firefox is gold", I also use SEOBook toolbar for anyone who comes across this post - another good firefox extention that is now available.

0:07:23 Fri Nov 6 2009 CST


ComputerCoders writes: Great article I usually use Filezilla for FTP but will try FireFTP that you recommend. Great stuff.

4:31:51 Thu Jul 23 2009 CDT


Katy writes: As a website designer I love Firebug! Also SenSEO is very a helpful plugin for optimizing. And last but not least YSlow, it is great at making sure your page is very quick loading.

23:45:30 Tue Jul 14 2009 CDT


Jack writes: You can drop Server Switcher since it hasn't worked since FireFox 3.x

10:44:43 Thu Jun 4 2009 CDT


Neefra writes: Nice article
I found it very enlightening! Good work!

1:21:52 Mon Jun 1 2009 CDT


Neefra writes: KOOL LIST.
I am thankful to you for sharing these tools.
nice job...

23:23:02 Tue May 26 2009 CDT


Jimmi writes: Thanks for sharing these tools. I've been using FireFTP for quite soem time now and I am pleased with their service.

It's glad to know that there are other add ons that make our work easier and more effective. Specially the SEO for firefox thing. thanks.

19:12:31 Sun Mar 22 2009 CDT


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