Best Firefox plugins for Web Design and Developers

Mozilla Firefox is becoming more and more powerful tool in these days. Using right add-ons it will start to become a tool, You can`t live without as web-developer! Each of these plugins can make certain things easier and that`s especially important for web-developers, because searching for errors and optimizing your pages can be pretty painful and time-consuming process.

Stumble Upon

StumbleUpon helps you discover great websites that match your interests. Simply click the Stumble button and see the best websites. There are over 500 topics to choose from, and, the more you use it, the better your recommendations become!

Website:        http://www.stumbleupon.com/
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/stumbleupon/

Firebug

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page…

Website:        http://getfirebug.com/
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/firebug/

Web developer extension

The Web Developer extension adds various web developer tools to a browser.

Website:http://chrispederick.com/work/web-developer/
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/web-developer/

Screen Grab

Screengrab! saves webpages as images…

It will capture what you can see in the window, the entire page, just a selection, a particular frame… basically it saves webpages as images – either to a file, or to the clipboard. It captures Flash too!

Website:       http://www.screengrab.org
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/screengrab/

Flash FireBug

Debug your own SWF files inside the browser. Edit properties and inspect elements like you do to HTML. Redirect trace output to the extension. This extension requires Firebug extension and embedding the O-Minds package.

Website:  http://www.o-minds.com/products/flashfirebug
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/flashfirebug/

HTML Validator

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing.

Website: http://users.skynet.be/mgueury/mozilla/
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/html-validator/

MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Website: http://www.kevinfreitas.net/extensions/
Firefox page: https://addons.mozilla.org/en-US/firefox/addon/measureit/

ColorZilla

Advanced Eyedropper, ColorPicker, Page Zoomer and other colorful goodies…

Website : http://www.colorzilla.com/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/colorzilla/

Alexa Sparky

Alexa Internet’s official add-on for Firefox! Get Alexa data in your status bar.

Website : http://www.alexa.com/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/alexa-sparky/

Flagfox

Displays a country flag depicting the location of the current website’s server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more…

Website : http://blog.flagfox.net/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/flagfox/

Site Information Tool

Provides information about a webpage (or website) including rankings, domain registration data (whois), IP information, server response and page data, thumbnail and more.

Website : http://www.wmtips.com/tools/info/add-on/firefox/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/site-information-tool/

SimilarWeb – Find the Best Sites on the Internet

The easiest way to find the best websites on the Internet! As you browse the internet, find the most interesting related sites on the web by similarity and category and get the latest articles and buzz on every website you visit.

Website : http://www.similarsites.com/similarweb/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/similarweb-sites-recommendatio/

SEO & Website Analysis

WooRank provides a deep SEO & Website Analysis reviewing more that 50 SEO criterias.
Website : http://www.woorank.com
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/seo-website-analysis/

SEO Doctor

SEO Doctor allows easy SEO diagnosis and problem solving for webmasters.

Website : http://www.prelovac.com/vladimir/browser-addons/seo-doctor
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/seo-doctor/

IE Tab

IE Tab – an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox…

Website : http://ietab.mozdev.org/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/ie-tab/

Cooliris Previews

The Cooliris 3D Wall — The fastest and most stunning way to browse photos and videos from the Web or your desktop. Effortlessly scroll an infinite “3D Wall” of content from Facebook, Google, YouTube, Flickr, and more. Even watch TV shows & movies.

Website : http://www.cooliris.com
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/cooliris/

Mozilla Labs Ubiquity

An extension that allows for the use of dynamic commands in Firefox.

Website : http://ubiquity.mozilla.com
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/mozilla-labs-ubiquity/

Professor X

The Professor X Extension let’s you see inside a page’s head without viewing the sourcecode…

Website : http://www.designmeme.com/professorx/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/professor-x/

ScribeFire

ScribeFire is a full-featured blog editor that integrates with your browser and lets you easily post to your blog.

Website : http://www.scribefire.com/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/scribefire-blog-editor/#

Tamper Data

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters…

Website : http://tamperdata.mozdev.org
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/tamper-data/

Adsense Preview

Preview the Google ads that may show on any web page…

*UPDATE – June, 9 2010: The development of this add-on is suspended for lack of time. No new update is planned. Developer wanting to take over, contact us via www.yellowpipe.com

Website : http://www.yellowpipe.com/yis/tools/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/adsense-preview/

Server Spy

Server Spy indicates what brand of HTTP server (e.g. Apache, IIS, etc.) runs on the visited sites.

Website : http://www.jacquet80.eu/mozilla/exts/ServerSpy/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/server-spy/

WHOIS

Lightweight WHOIS Lookup – Adds a small WHOIS button.

Website : http://www.vitzo.com/en/article/whois-lookup-add-on-for-firefox
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/whois-2646/

Codetch

Get the feel of Dreamweaver in a Firefox extension. Edit your documents right next to your web pages as you surf.

Website : http://codetch.org/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/codetch/

Domain Lookup

Ever read a phrase online and think: “that would make a great domain name”? Domain Lookup is a Firefox extension that helps you discover valuable domain names while surfing the web. 60+ popular domain registrars are already supported.

Website : http://domainlookup.org
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/domain-lookup/

Yet Another Window Resizer

Resize browser window to default screen…

Website : http://www.sdx.hu/mozilla/extensions/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/yet-another-window-resizer/

Server Switcher

Easily switch between your development and live servers.

Website : http://hermann.czedik.net/projekte/switcher/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/server-switcher/

seoquake firefox extension

Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization(SEO) and internet promotion of web sites. Seoquake allows to obtain and investigate many important SEO parameters of the internet

Website : http://seoquake.com/
Firefox  page: https://addons.mozilla.org/en-US/firefox/addon/seoquake-seo-extension/