Live editor for CSS, Less & Sass - Magic CSS Firefox

Live editor for CSS, Less & Sass - Magic CSS

Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, convert Less/Sass to CSS, beautify, minify, CSS reloader, linter, ...

Features & Capabilities

Magic CSS is a powerful Chrome extension that enables live editing and previewing of CSS, Less, and Sass code directly in your browser. It auto-saves your changes, supports syntax highlighting, autocomplete, and Emmet abbreviations, making styling faster and more efficient.

With a built-in CSS reloader, color picker, linter, and the ability to convert Less/Sass to CSS, Magic CSS streamlines web development. It includes features like auto-generating CSS selectors with point-and-click, code beautify and minify, DOM element highlighting, and iframe support. Open source and compatible with Chrome, Edge, and Firefox, it is ideal for developers wanting real-time styling feedback without refreshing pages, enhancing productivity and customizing website themes effortlessly.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
webextensions.org
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/live-editor-for-css-less-sass/
Email:
we*****@gmail.com
Website:
https://webextensions.org/

User Reviews

Users find 'Magic CSS' very useful as a live CSS editor, simplifying style editing with efficient, lightweight functionality suitable even for non-experts. Common complaints include the lack of persistent changes requiring reopening the addon each session, absence of pinning to keep it active, and limited UI customization. Users also wish for SASS support and the ability to manage local stylesheets like older tools. Overall, it is appreciated but could improve with added persistence, better interface options, and enhanced feature parity with similar extensions.
Pros
  • Very useful and handy live CSS editor functionality for quick styling changes.
  • Makes defining and editing CSS easy even for users not proficient with CSS.
  • Lightweight and simple extension that enhances productivity without heavy tools.
  • Appreciated for its efficient live editing for CSS, Less, and Sass.
  • Provides a better alternative to browser default dev tools for live CSS adjustments.
Cons
  • Lacks auto-save or persistent saving of changes, requiring reopening the addon each time.
  • No option for pinning or fixing the editor interface, causing it to close or deactivate frequently.
  • UI is limited, with suggestions to improve visual design including themes and less distracting colors.
  • Missing SASS support compared to the Chrome version, which impacts users relying on SASS features.
  • Cannot open/save local stylesheets directly, unlike some older related extensions, limiting workflow convenience.
Recent reviews
by so*****, 2026-04-12

by 退出*****, 2025-03-28

by 天灭*****, 2025-02-13
View all user reviews ›

Is Live editor for CSS, Less & Sass - Magic CSS Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Live editor for CSS, Less & Sass - Magic CSS requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Live editor for CSS, Less & Sass - Magic CSS has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best Live editor for CSS, Less & Sass - Magic CSS Alternatives

Here are some Firefox add-ons that are similar to Live editor for CSS, Less & Sass - Magic CSS: