Web Standards Kit

by smartpixel

15 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,762 reviews

2,278,373 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

572,641 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

568,746 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!

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 154 reviews

171,853 users

View HTTP headers of a page and while browsing.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

253,988 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

145,510 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 183 reviews

108,852 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.

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

55,516 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/

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 33 reviews

37,253 users

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

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 51 reviews

33,412 users

Firebug plugin for jQuery development

Screengrab by Andy M

Rated 4 out of 5 stars 589 reviews

30,879 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.

Accessibility Evaluation Toolbar by Jon Gunderson

Rated 3 out of 5 stars 15 reviews

6,982 users

Support web developers in testing web resources for accessibility features.

SenSEO by Nico Steiner

Rated 4 out of 5 stars 41 reviews

7,235 users

SenSEO is an extension checking the most important on-page-SEO-criteria and calculating a grade of how good your site fulfills these criteria.

HeadingsMap by Rumoroso

Rated 5 out of 5 stars 15 reviews

2,993 users

The extension generates a documentmap or index of any web document structured with headings and/or with sections in HTML 5. It shows the headings structure, the errors in the structure (ie. incorrect levels), and it works as HTML5 Outliner too.

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

Recently Viewed