Web developer

by Aldis

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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 946 reviews

1,324,144 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 369 reviews

474,114 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

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.

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 334 reviews

329,056 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

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.

Modify Headers by Gareth Hunt

Rated 4 out of 5 stars 70 reviews

298,167 users

Add, modify and filter the HTTP request headers sent to web servers. This addon is particularly useful for Mobile web development, HTTP testing and privacy.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 97 reviews

70,165 users

Wappalyzer is a browser extension that identifies software on websites.

FlashFirebug by O-Minds

Rated 4 out of 5 stars 5 reviews

34,717 users

Debug Flash/SWF files on the web. Edit properties and inspect elements on the fly. View log output inside the extension. Run AS3 code against the active SWF. Access assets with the Explorer. View AMF calls and Shared Objects and much much more...

Clear Cache Button by Chris Holtz

Rated 4 out of 5 stars 128 reviews

156,900 users

Adds a clear cache toolbar button. After installing the extension, find the clear cache button in the toolbar customization...

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

Controle de Scripts by Fernando Pereira Silveira

Rated 4 out of 5 stars 27 reviews

3,209 users

Controle de Scripts is an extension that allows you to control what JavaScripts do on your browser.
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