Firebug Enhancements

by Jonathan Danylko

8 Add-ons in this Collection

YSlow by YSlow

Rated 3 out of 5 stars 195 reviews

98,243 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. is the official open source website.

FirePHP by cadorn

Rated 4 out of 5 stars 46 reviews

50,780 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

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

21,984 users

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

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 34 reviews

33,949 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 101 reviews

13,978 users

Pixel Perfect is a Firefox extension that allows web developers and designers to easily overlay a web composition with semi-transparent layers (images). These layers can be consequently used for per pixel comparison between the page and a layer.

Firecookie by Jan Odvarko

Rated 4 out of 5 stars 61 reviews

4,548 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

FireRainbow by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 44 reviews

6,164 users

Javascript syntax highlighting for Firebug

Jiffy by Bill Scott

Rated 3 out of 5 stars 12 reviews

82 users

Adds a new panel to Firebug for displaying timing measurements for JavaScript applications.

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