Tools & Webdev

by ycc2106

57 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,765 reviews

2,416,425 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 208 reviews

589,574 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 30 reviews

200,031 users

Manage any SQLite database on your computer.

Tamper Data by Adam Judson

Rated 4 out of 5 stars 128 reviews

119,566 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

265,678 users

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

FirePath by Pierre Tholence

Rated 4 out of 5 stars 22 reviews

64,211 users

FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 154 reviews

180,740 users

View HTTP headers of a page and while browsing.

JSONView by Ben Hollis

Rated 5 out of 5 stars 126 reviews

97,209 users

View JSON documents in the browser.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 161 reviews

100,463 users

An HTTP analyzer addon for Firefox

YSlow by YSlow

Rated 3 out of 5 stars 185 reviews

113,702 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.

XPath Checker by Brian Slesinsky

Rated 5 out of 5 stars 18 reviews

27,481 users

An interactive editor for XPath expressions.

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 92 reviews

38,763 users

Color tools for web development.

Color picker and eyedropper + saving colors and trying out colors with drag and drop.

RefControl by James Abbatiello

Rated 4 out of 5 stars 177 reviews

88,923 users

Control what gets sent as the HTTP Referer on a per-site basis.

FirePHP by cadorn

Rated 4 out of 5 stars 46 reviews

58,343 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/

Phoenix by pc-facile.com

Rated 4 out of 5 stars 42 reviews

5,022 users

An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.
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