Webmaster Libre

by Alma

13 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,761 reviews

2,539,765 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 206 reviews

634,565 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 918 reviews

622,602 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

281,538 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

162,903 users

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

YSlow by YSlow

Rated 3 out of 5 stars 181 reviews

121,877 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.

FirePHP by cadorn

Rated 4 out of 5 stars 45 reviews

61,835 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/

Dust-Me Selectors by brothercake

Rated 4 out of 5 stars 71 reviews

17,472 users

Dust-Me Selectors is development tool to remove unused CSS selectors.

Screengrab by Andy M

Rated 4 out of 5 stars 589 reviews

33,692 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

Pixel Perfect by Mike Buckley, Lorne Markham, others

Rated 4 out of 5 stars 99 reviews

15,049 users

Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.

GridFox by Eric Puidokas

Rated 4 out of 5 stars 16 reviews

8,553 users

Draws a grid on top of a website

TAW3 with a click by Fundación CTIC

Rated 3 out of 5 stars 2 reviews

899 users

Web Accessibility Test.

You can have an idea, with a single click, of how accesible web sites are.

Live PageRank by Martin

Rated 3 out of 5 stars 56 reviews

1,769 users

Display PageRank for active URL...

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