Essential Add-ons for Website Development

by ProbCOMP

22 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,907 reviews

2,178,877 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 1,019 reviews

1,244,430 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 976 reviews

481,226 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!

Web Developer by chrispederick

Rated 5 out of 5 stars 252 reviews

484,412 users

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

Full Web Page Screenshots (♥♥♥♥♥) by susbox

FireShot makes full web page screenshots. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 314 reviews

266,969 users

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

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,205 reviews

194,622 users

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 358 reviews

142,198 users

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

Font Finder by Ben Dodson, Eric Caron, others

Rated 4 out of 5 stars 76 reviews

37,852 users

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 346 reviews

143,102 users

Adds zoom and rotation functionality for images...

YSlow by YSlow

Rated 3 out of 5 stars 217 reviews

76,819 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

Rated 4 out of 5 stars 216 reviews

55,135 users

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 Online HTML 5 validation, you need 0.962
http://users.skynet.be/mgueury/mozilla

Tab Scope by Gomita

Rated 4 out of 5 stars 477 reviews

126,254 users

Preview and navigate tab contents through popup.

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

19,822 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.

Firesizer by orev

Rated 4 out of 5 stars 131 reviews

26,931 users

Allows you to resize the window to specific dimensions.

NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
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