Search Results for tag "css"

DevTools Prototyper No Restart

This add-on adds JS Fiddle style code prototyping to Firefox DevTools.

Rated 5 out of 5 stars (3)
194 users
Updated September 27, 2015

Firebug No Restart

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...

Rated 5 out of 5 stars (1,793)
2,317,059 users
Updated September 1, 2015

Policy Control (noScript, noCSS, noMedia, ...) No Restart

This extension helps you quickly disable and enable different types of resources such as JavaScript, CSS, and Media. The extension can be used to increase privacy as well as saving bandwidth by blocking unwanted contents.

Rated 4 out of 5 stars (1)
583 users
Updated August 27, 2015

UserStyles™ No Restart

UserStyles™ allows you to change any website's appearance; Choose your desired style from

Not yet rated
98 users
Updated August 26, 2015

HTML Content Blocker No Restart

Blocks desired HTML contents (script, style, image, object, media)

Not yet rated
148 users
Updated August 25, 2015

Custom Style Script No Restart

Add Custom JavaScript Codes or Styles to any Page.

Rated 5 out of 5 stars (2)
269 users
Updated August 5, 2015

DOM Inspector

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (65)
139,055 users
Updated July 9, 2015

CSS Usage

Firebug extension to view which CSS rules are actually used.

Rated 4 out of 5 stars (38)
22,052 users
Updated May 27, 2015

Stylish Featured

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (755)
664,588 users
Updated February 27, 2015

Dafizilla ViewSourceWith

The main goal allows users to open (and in some cases edit) page source with external applications.

Rated 4 out of 5 stars (59)
6,770 users
Updated February 27, 2015

Originz No Restart

A source viewer that enables you to view not only page's HTML source but also style sheets and scripts. It uses Prism syntax highlighter and it can beautify(unminify) the source code.

Rated 4 out of 5 stars (8)
324 users
Updated January 21, 2015

QuickJava Featured

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.

Rated 5 out of 5 stars (191)
270,643 users
Updated December 7, 2014

pesticide No Restart

Cascading Style Sheets can be tricky. Placing an outline on every element can help you figure out what is going on.
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.

Not yet rated
157 users
Updated December 7, 2014


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).

Rated 4 out of 5 stars (22)
71,601 users
Updated December 6, 2014

Personas Interactive Theme Engine

Created by where you can Build Your Own Browser Theme. Remove the limits of Personas. Get unlimited Personas, legible text; use with Firefox themes installed. Create your own Personas gallery; full CSS3 backgrounds, and more

Rated 2 out of 5 stars (36)
14,495 users
Updated November 28, 2014

Color That Site!

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.

Rated 4 out of 5 stars (65)
7,108 users
Updated November 3, 2014

View Source

Shows all source files of a webpage.

Rated 4 out of 5 stars (6)
1,208 users
Updated September 19, 2014

Empty Cache Button

Cache clearing made easy. One click.

Rated 4 out of 5 stars (85)
64,782 users
Updated September 2, 2014

Font Finder Featured

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.

Rated 4 out of 5 stars (66)
33,327 users
Updated July 7, 2014


Speed up your testing and debugging times with PourBico. By intercepting HTTP requests, PourBico allows you to modify each response (headers and body) via inline edits or by replacing resources with local or external ones.

Rated 5 out of 5 stars (4)
356 users
Updated June 16, 2014