Essential List on Firefox Extensions for Webmaster

[shadow.prx]

Must Have:

• Aardvark - Very useful tool to view elements within the HTML, view source code on specific element, select and remove block by block within the page.
• IE Tab - Embed Internet Explorer into Firefox. This is ultra convenient extension to test your page compatibility with just a click away.
• Performancing - “Performancing for Firefox is a full featured blog editor that sits right within Firefox. Just hit F8 or click the little pencil icon at the bottom right to bring up the editor and easily post to your Wordpress, MovableType or Blogger blogs.”
• Search Status - Puts Google PageRank and Alexa popularity ranking on the status bar to quickly view the link importance of the site easily.
• Web Developer - Many features just for web developer. One of the best features is to edit CSS source and display live changes.
• ColorZilla - Quick way to pick color from any pages (text or image) and get its color hex code.( this is my personal favorit)
• DevBoi - A sidebar offers easy access to web-development documentations and reference manuals (HTML4, CSS2, DOM2, XUL). Very neat way to get reference on syntax especially for CSS.

Should Have:

• MeasureIt - A ruler to analyze website layouts. This is very useful small tool to get the right measurement for your web layout.
• NoScript - The best security you can get in a web browser!
  Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
• FoxMarks - Foxmarks is the essential bookmarking add-on. Install Foxmarks on each computer you use, and it works silently in the background to keep your bookmarks and (optionally) passwords backed up and synchronized.
• FlagFox - Displays a country flag depicting the location of the current website's server and provides quick access to detailed location and webserver information.
• Platypus - “lets you modify a Web page from your browser — “What You See Is What You Get” — and then save those changes as a Greasemonkey script so that they’ll be repeated the next time you visit the page. Editing pages to suit your needs is dandy — but making those changes “permanent” is the real payoff.”
• LiveHTTPHeaders - View and manipulate header request.
• LiveLines - Change the RSS subscription from default live bookmark to web services such as Bloglines and NewsGator Online, and RSS reader extensions(Sage, Habari Xenu). Quick way to subscribe any feed for your daily research.

Good to Have:

• SEOpen - Add a set of menu links for search engine optimization, such as quick links to Alexa, DMOZ, HTML Validator, etc.
• User Agent Switcher Extension - able to switch the user agent of the browser.
• UrlParams - Quick utility to debug GET/POST parameters.

Credits to Lifehack.org for the original post
enjoy

shadow.prx Reviewed by shadow.prx on 6th Mar 2009. Essential List on Firefox Extensions for Webmaster Must Have: Aardvark - Very useful tool to view elements within the HTML, view source code on specific element, select and remove block by block within the page. IE Tab - Embed Internet Explorer into Firefox. This is ultra convenient extension to test your page compatibility with just a click away. Performancing - “Performancing for Firefox is a full featured blog editor that sits right within Firefox. Just hit F8 or click the little pencil icon at the bottom right to bring up the editor Rating: 5

[Starnova]

Hi Shadow.prx I would like to add one if I may. A useful tool to have is Flag Fox .. It identifies the country and IP of the server they are on.

[swapnil0545]

I would like to add one too.
Its foxmarks
using this your bookmarks get synchronised on your online account.
and then you can use them any where.
Its the best addon ever.

[whats_up]

another important addon is NoScript it saves you from annoying ads, link to the addon - https://addons.mozilla.org/en-US/firefox/addon/722

[pirateaccess]

greasemonkey addon

[shadow.prx]

Added all except greasemonkey because that needs scripts to work and i cba to find a bunch of usefull scripts

[Hawk]

You shouldn't take all the credit lol. *cough* Leon Ho *cough*

[Zing]

Very nice list from : http://www.lifehack.org/articles/lif...xtensions.html always good to give credit

[pirateaccess]

all the scripts of greasemonkey can be dound on userscripts.org

[shadow.prx]

i did give credit but when i was editing it it must have gone somehow