Essential Add-ons for Website Development

by ProbCOMP

22 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,063 reviews

1,261,504 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

1,013,008 users

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

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 936 reviews

313,846 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 258 reviews

301,227 users

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

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,212 reviews

116,042 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 371 reviews

164,256 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 362 reviews

83,255 users

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

Image Zoom by Jason Adams

Rated 4 out of 5 stars 347 reviews

113,231 users

Adds zoom and rotation functionality for images...

Font Finder by Ben Dodson, Eric Caron, others

Rated 4 out of 5 stars 78 reviews

25,632 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.

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

44,490 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 218 reviews

32,218 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 483 reviews

88,986 users

Preview and navigate tab contents through popup.

Firesizer by orev

Rated 4 out of 5 stars 133 reviews

16,275 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.

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

13,285 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.
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