Artem's Essential Web Developer Add-ons

by Archon810

26 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,759 reviews

2,537,919 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 234 reviews

410,682 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 203 reviews

636,649 users

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

IE Tab V2 (Enhanced IE Tab) by ietab.net

Rated 4 out of 5 stars 413 reviews

609,556 users

Note: If you are encountering the Connecting... problem see instructions below.

The updated, fully supported IE Tab. Embed IE in a Firefox tab. IE Tab Features: FF 4+ support, IE 7-9 compatibility modes, old IE Tab settings import.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

281,676 users

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

FirePath by Pierre Tholence

Rated 4 out of 5 stars 22 reviews

62,016 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).

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

161,722 users

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

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 26 reviews

56,246 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.

YSlow by YSlow

Rated 3 out of 5 stars 180 reviews

122,973 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.

JSONView by Ben Hollis

Rated 5 out of 5 stars 125 reviews

97,635 users

View JSON documents in the browser.

HackBar by Johan Adriaans, Pedro Laguna

Rated 5 out of 5 stars 39 reviews

32,971 users

Simple security audit / Penetration test tool.

Html Validator by Marc Gueury

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 23+, you need 0.958 (under review)
http://users.skynet.be/mgueury/mozilla

FirePHP by cadorn

Rated 4 out of 5 stars 45 reviews

63,024 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/

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 50 reviews

38,268 users

Firebug plugin for jQuery development

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

26,030 users

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