Web Development

by qywolalalalala

17 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,766 reviews

2,452,317 users

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...

Stylish by Jason Barnabe

Rated 4 out of 5 stars 733 reviews

738,343 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 240 reviews

396,949 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Web Developer by chrispederick

Rated 5 out of 5 stars 208 reviews

603,016 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

270,994 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 154 reviews

183,781 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 328 reviews

157,384 users

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

YSlow by YSlow

Rated 3 out of 5 stars 186 reviews

115,443 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 33 reviews

38,860 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 61 reviews

141,745 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

24,977 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 100 reviews

14,590 users

Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 61 reviews

5,066 users

Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser

Firecookie is part of Firebug since Firebug 1.10

Inline Code Finder for Firebug by Robert Nyman

Rated 4 out of 5 stars 14 reviews

10,553 users

Inline Code Finder is an add-on to Firebug, to be able to find HTML elements with any of the below issues:

* Inline JavaScript events
* Inline style
* javascript: links

Detailed description can be found athttp://www.robertnyman.com/inli...

FireRainbow by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 43 reviews

7,145 users

Javascript syntax highlighting for Firebug
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