Now its 2010 and internet users are really faster then before. and now they need more speed more power browsing and tool kits for explore the web sites.

Specially developers are using most of plug-ins in process of development a web sites. and now Mozilla Firefox is the best browser for developers.

1.Web developer`s toolbar

This plugin have own toolbar that gives many useful tools, validating and optimizing web-pages.

2.Firebug

Firebug have lots of different powerful options for a developers. You have an ability to edit the page, debug, and monitor CSS, HTML, and JavaScript right in live web page to see the effects.

3.ColorZilla

ColorZilla gives You an option to advanced eyedropper, colorPicker, page Zoomer.

4.MeasureIt

Draw a ruler across any webpage to check the width or height of a element.

5.HTML Validator

This plug-in displays HTML validation inside Firefox and Mozilla.

6.Greasemonkey

Customize your web pages and see how to displays using small bits of JavaScript

7.FireFTP

FireFTP is simply an FTP client. Important thing it is free and you can flip to it just like any tab in your browser.

8.Live HTTP Headers

It have an option to show you analyze HTTP headers (requests and responses) in web-browser with several useful features built-in.

9.ScreenGrab!

Screengrab saves entire web pages as images. You can even choose the portion of the screen you want to “grab”!

10.StumbleUpon

StumbleUpon in toolbar for stumblers and also helps you to find new sites very easy.

11.SEO for Firefox

Pluging for who like to watch statistics right into Google and Yahoo search results. You can get Alexa, Google PageRank and many other useful data.

12.Adblock Plus

Really helps to get rid of unnecessary ads and banners.

13.CSSViewer

With this extension you can view CSS properties of related page elements to analyze why something is not displayed in the way You wanted.

14.Tab Mix Plus

If You always have many Firefox tabs opened at the same time. This plug-in provides better management of your tabs.

15.Image Zoom

Image zoom have complete control of the size. Both individual images or whole pages of images can be zoomed.

16.JavaScript Debugger

Powerful JavaScript debugging environment for Mozilla Firefox browser.

17.Dummy Lipsum

Load pages in IE with a single right-click, or also have an option to mark certain sites to *always* load in IE.

18.IE View

Add-on generates automatically “Lorem Ipsum” dummy text. It to be pretty useful as web designer.

19.Font Finder

Just select and right click to see all of the styling information including font-size, font-family, color, line-height, letter-spacing, and much more..

20.Opera View

If you want quick view in opera, right click on page and select “View This Page In Opera”.

Mozilla Firefox is a browser, fast, sleek with outstanding performance. When Mozilla Firefox starting new tap style browsing Firefox beat it all other browsers. because Firefox browser is fast, cool looks, tab browsing with speed and have no load itself, that’s really impressive.