Web Developers

by The MAZZTer

12 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,624 reviews

2,663,695 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 178 reviews

709,802 users

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

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 195 reviews

429,794 users

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

IE Tab by PCMan, yuoo2k

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

Tamper Data by Adam Judson

Rated 4 out of 5 stars 112 reviews

131,271 users

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

HttpFox by Martin Theimer

Rated 4 out of 5 stars 149 reviews

108,582 users

An HTTP analyzer addon for Firefox

FirePHP by cadorn

Rated 4 out of 5 stars 41 reviews

66,849 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/

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 19 reviews

55,229 users

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 53 reviews

147,847 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.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 57 reviews

8,010 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

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 45 reviews

17,416 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

FireRainbow by BinaryAge

Rated 4 out of 5 stars 40 reviews

11,144 users

Javascript syntax highlighting for Firebug

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