Web Development

by c2theg

16 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,077 reviews

1,919,662 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...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 268 reviews

311,226 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 994 reviews

434,226 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Web Developer by chrispederick

Rated 5 out of 5 stars 259 reviews

436,411 users

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

SeoQuake SEO extension by SeoQuake Team

Rated 4 out of 5 stars 216 reviews

61,126 users

Accelerate your SEO efforts on the fly. SEOquake is a free plugin for browsers that provides you with key SEO metrics for a specific page, along with other useful tools such as SEO Audit and many others.

YSlow by YSlow

Rated 3 out of 5 stars 220 reviews

67,577 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.

FirePHP by cadorn

Rated 4 out of 5 stars 50 reviews

37,516 users

FirePHP enables you to log to your Firebug Console using a simple PHP method call.

Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 72 reviews

110,934 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.

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 40 reviews

17,171 users

Firebug extension to view which CSS rules are actually used.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

23,537 users

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

SEO Doctor by vprelovac

Rated 4 out of 5 stars 76 reviews

11,909 users

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

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 61 reviews

2,399 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

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 55 reviews

20,190 users

Firebug plugin for jQuery development

SenSEO by Nico Steiner

Rated 4 out of 5 stars 41 reviews

5,326 users

SenSEO is an extension checking the most important on-page-SEO-criteria and calculating a grade of how good your site fulfills these criteria.

Foxy SEO Tool by McNulty

Rated 5 out of 5 stars 21 reviews

2,984 users

Foxy SEO Tool offers tools for search engine optimization (SEO), web traffic and page analysis for webmasters and web professionals.
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