JavaScript & Colors

by harrison3001

66 Add-ons in this Collection

CSS Reloader by auchenberg

Rated 4 out of 5 stars 33 reviews

7,149 users

CSS Reloader is an extension that allows you to reload all the CSS of any site without you have to reload the page itself.

Flashbug by O-Minds

Rated 3 out of 5 stars 4 reviews

7,736 users

This extension has been discontinued and merged into FlashFirebug.

JavaScript Terminal by Paul Rouget

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Rated 5 out of 5 stars 4 reviews

6,330 users

JavaScript Terminal for Firefox.

Fangs Screen Reader Emulator by Peter Krantz

Rated 5 out of 5 stars 9 reviews

4,980 users

Fangs renders a text version of a web page similar to how a screen reader would read it. The ambition is to help developers understand how an assistive device would present a website and thereby increase chances of finding accessibility issues early.

jQuery by Alrond

Rated 5 out of 5 stars 5 reviews

3,159 users

jQuery and jQuery UI embedded in browser

FlashInspector by tamt

Rated 4 out of 5 stars 6 reviews

1,330 users

Inspect flash(swf)'s DisplayObject with mouse. Overview the swf's DisplayObject list. Set the inspect filter class when use mouse inspect.

following @itamt on twitter for the updates

Developer Assistant by Ted Mielczarek, Gavin Sharp, others

Rated 4 out of 5 stars 45 reviews

3,895 users

A suite of tools for developers.

Dafizilla ViewSourceWith by dafizilla

The main goal allows users to open (and in some cases edit) page source with external applications.
Latest version is always available at

InspectThis by Laurens Mackay

Rated 5 out of 5 stars 9 reviews

3,398 users

Inspect the current element with the DOM Inspector.

Acebug by Mike Ratcliffe, Harutyun Amirjanyan

Rated 5 out of 5 stars 16 reviews

2,105 users

Syntax highlighting for the Firebug command line using Ace.
Fuzzy auto completion
and more...

uc by matyr

Rated 5 out of 5 stars 10 reviews

1,617 users

A userChromeJS clone with built-in subscript/overlay loader capability.

Scriptify by Kris Maglione

Rated 4 out of 5 stars 17 reviews

1,640 users

Create and manage add-ons made from Greasemonkey and Scriptish user scripts

SourceEditor by iDo

Rated 3 out of 5 stars 20 reviews

1,873 users

View and Edit source of HTML element...

Good Website Inspector by Stefan Seifarth

Rated 5 out of 5 stars 1 review

2,755 users

Good Website Inspector is an extended ruleset for YSLOW, a Firefox AddOn, to check source codes of HTML pages to get easy and fast hints to optimize the current page.

Validator by Teun van Eijsden

Rated 3 out of 5 stars 8 reviews

4,528 users

Firebug extension to validate HTML.
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