WebDvlp

by Andrius.Z

20 Add-ons in this Collection

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

288,694 users

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

FirePath by Pierre Tholence

Rated 4 out of 5 stars 21 reviews

60,209 users

FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

164,461 users

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

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 95 reviews

67,465 users

Wappalyzer is a browser extension that identifies software on websites.

RDS bar (seo: pr, dmoz, alexa, seomoz) by Recipdonor

Rated 4 out of 5 stars 39 reviews

22,094 users

RDS seo toolbar (pr, dmoz, alexa, seomoz ... ) – is a useful tool for fast analysis of website and page SEO indicators, designed for webmasters and optimizers. And also with a range of useful functions for ordinary users.

CSS Usage by Teun van Eijsden

Rated 4 out of 5 stars 39 reviews

25,034 users

Firebug extension to view which CSS rules are actually used.

Firepicker by thedarkone2

Rated 5 out of 5 stars 53 reviews

24,231 users

Simple color picker plugin for Firebug.

View Source Chart by Jennifer Madden

Rated 5 out of 5 stars 101 reviews

17,924 users

Inspect the DOM at lightning speed.

Mason by tiramn

Rated 5 out of 5 stars 63 reviews

8,561 users

This extension can simplify the rule to just specify the URI and Content type and can enable/disable each rule separately.
What's more, it can customize the web pages by user scripts which is similar to Grease Monkey.

Color That Site! by Michael-Donning

Rated 4 out of 5 stars 57 reviews

7,483 users

Change the colors of web sites. With the move of some sliders, you change the foreground and background colors of a site.

Watch the video for a short introduction.

EditCSS by Pascal Guimier

Rated 3 out of 5 stars 12 reviews

5,834 users

Stylesheet modifier in the Sidebar.

Colorific. by Peter J. Sloetjes

Rated 4 out of 5 stars 19 reviews

1,679 users

Colorize entire web pages manually or automatically. Comes with 28 customizable themes that transform hue, saturation, lightness and opacity. For Firefox 28.0 and above. NEW: Copy themes and group color properties using drag-and-drop.

Image Map Editor by Heinz-Jürgen Boms

Rated 4 out of 5 stars 3 reviews

1,798 users

Check and editing the image maps inside the web page with magnifying glass.

FireLogger by BinaryAge

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Experimental

Rated 3 out of 5 stars 9 reviews

1,857 users

Logging support for web developers (PHP, Python, ColdFusion)

Document Map by James Graham

Rated 5 out of 5 stars 16 reviews

65 users

Displays the current page's heading structure in the sidebar, allowing rapid navigation between...
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