Who should use Live CSS Editor Plus?

Live CSS Editor Plus is a consumer product built for web developers and frontend designers.

Does Live CSS Editor Plus have a free plan?

Yes — Live CSS Editor Plus is free to use.

What platforms does Live CSS Editor Plus run on?

Live CSS Editor Plus runs on the web and embeddable surfaces.

Is Live CSS Editor Plus still maintained?

Unverified. Live CSS Editor Plus has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Live CSS Editor Plus?

Similar projects tracked by PulseGate include Webextensions, Live CSS Preview, and CSS Pro.

Who makes Live CSS Editor Plus?

Live CSS Editor Plus is developed by Chastity.

When did Live CSS Editor Plus launch?

Live CSS Editor Plus first shipped in 2024.

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Live CSS Editor Plus

Name: Live CSS Editor Plus
Author: Chastity

mozilla.orgBrowser DevTools & extensions

Live CSS Editor Plus is a Firefox extension for editing CSS directly on web pages and previewing changes immediately. It includes syntax highlighting, change history, customizable themes, and developer-tools integration for frontend prototyping and style testing.

FreeWebEmbeddable

Visit mozilla.org

Overview

6 features

Live CSS Editor Plus sits in PulseGate's Browser DevTools & extensions category. It focuses on testing and refining webpage styles without repeatedly editing source files or refreshing pages. Live CSS Editor Plus is a consumer product aimed at web developers and frontend designers. Live CSS Editor Plus costs nothing to use. It ships for the web and embeddable surfaces.

It is developed by Chastity, and it first shipped in 2024. Among its 6 catalogued features are real-time editing, live preview, and syntax highlighting. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Real-time editing
Live preview
Syntax highlighting
Code history
Customizable themes
DevTools integration

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed14 Sep · 13:35 UTC
Live CSS Editor Plus verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Live CSS Editor Plus

What does Live CSS Editor Plus do?: Live CSS Editor Plus focuses on testing and refining webpage styles without repeatedly editing source files or refreshing pages. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Live CSS Editor Plus?: Live CSS Editor Plus is a consumer product built for web developers and frontend designers.
Does Live CSS Editor Plus have a free plan?: Yes — Live CSS Editor Plus is free to use.
What platforms does Live CSS Editor Plus run on?: Live CSS Editor Plus runs on the web and embeddable surfaces.
Is Live CSS Editor Plus still maintained?: Unverified. Live CSS Editor Plus has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Live CSS Editor Plus?: Similar projects tracked by PulseGate include Webextensions, Live CSS Preview, and CSS Pro.Webextensions Live CSS Preview CSS Pro
Who makes Live CSS Editor Plus?: Live CSS Editor Plus is developed by Chastity.
When did Live CSS Editor Plus launch?: Live CSS Editor Plus first shipped in 2024.

At a glance

Pricing: Free
Platforms: Web
Built for: web developers and frontend designers
Model: B2C
Solves: Testing and refining webpage styles without repeatedly editing source files or refreshing pages.

Registered as

Firefox Add-ons: live-css-editor-plus

Developer

Chastity

Index record

Indexed: 14 Sep 2026
Lifecycle: Alive
Last seen: 14 Sep 2026

Identity audit (13)

Slug: live-css-editor-plus-mozilla-org
Lifecycle state recorded: 14 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 14 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/live-css-editor-plus

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