Search Results for tag "css"

Color That Site! Requires Restart

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 (86)
2,841 users

Developer Tools - toolbar button Requires Restart

Access and activate the native Firefox Web Developer tools faster through this toolbar button (menu). Button can be placed on any toolbar.

Rated 5 out of 5 stars (10)
6,364 users

User Style Manager

Easiest way to Add and Manage Custom User Styles in Firefox.
Add, Edit, enable, disable and delete in-numerous User Style Sheets to redesign the Firefox and the Web.

Rated 4 out of 5 stars (28)
431 users

Styler Compatible with Firefox 57+

You can Style any webpage with custom CSS / JavaScript / jQuery code

Rated 5 out of 5 stars (1)
121 users

Firepicker Requires Restart

Simple color picker plugin for Firebug.

Rated 5 out of 5 stars (56)
5,194 users

CSSViewer Requires Restart

A simple CSS property...

Rated 4 out of 5 stars (98)
195 users

Daily - Discover web technologies Compatible with Firefox 57+

Staying updated is a huge hassle. Daily was made by developers for developers to help us focus on code instead of searching for news.

Rated 5 out of 5 stars (3)
59 users

CSS Reload Compatible with Firefox 57+

Simplifies stylesheets reload of the current page.

Rated 4 out of 5 stars (3)
265 users

PourBico Requires Restart

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 (10)
311 users

lmnpop Requires Restart

Pops elements as resizable windows.

Rated 4 out of 5 stars (20)
245 users

a11y.css accessibility checker Compatible with Firefox 57+

a11y.css provides warnings about possible risks and mistakes that exist in HTML code through a style sheet. This extension also provides several accessibility-related utilities.

see https://github.com/ffoodd/a11y.css/tree/webextension for details

Not yet rated
62 users

Stylish Tools Requires Restart

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
733 users

Image Data Compatible with Firefox 57+

Shows more information about an image when you hover over it, such as its resolution, file extension, and file size.
Customize your image data with multiple dynamic and static positions, and change it's look with CSS styles.

Rated 4 out of 5 stars (3)
68 users

Style Guide Generator Compatible with Firefox 57+

Generate simple style guide from page's CSS.

Rated 5 out of 5 stars (2)
82 users

DarkenBackground

replace white or very bright background on webpages with slightly darker colors

Rated 5 out of 5 stars (18)
290 users

Calm Colors Compatible with Firefox 57+

Unreadable text on a page? Not enough contrast? Garish colors hurt your eyes? This extension will apply a lightweight, pastel style to a web page, to make browsing more comfortable.

Rated 3 out of 5 stars (1)
13 users

Website Theme Manager (WebExtension) Compatible with Firefox 57+

Allows you to change any website's look; choose your desired style from userstyles.org

Rated 4 out of 5 stars (1)
68 users

Mobile toolkit Requires Restart

A toolbar for Mobile WebDevelopers, lets you quickly validate your code, check renders and find documentation.

Rated 3 out of 5 stars (7)
455 users

Phoenix Requires Restart

An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

Rated 4 out of 5 stars (47)
650 users

Gmail Row Highlighter Compatible with Firefox 57+

Highlights Gmail rows on mouse over. It's a simple css injection. Link to source is on the sidebar.

Rated 5 out of 5 stars (6)
74 users