Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Anthracite

Anthracite by psyopgirl

Introducing Anthracite: modern dark mode for the whole web.

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Anthracite: Modern dark mode for the whole web.
About this extension
Anthracite is a clean, modern dark mode extension that brings a flatter, more readable dark theme to the web with a single click.

It applies a carefully designed theme across pages, buttons, forms, menus, search fields, popovers, tabs, and other common interface elements, while keeping text legible and preserving the structure of each site. Anthracite is built to load quickly, switch instantly, and stay visually stable during navigation.

What Anthracite offers
-One-click universal dark mode for everyday browsing
-Fast, lightweight page theming designed to avoid flicker and unnecessary overhead
-Thoughtful page structure detection so headers, footers, navigation, search bars, and controls stay visually distinct
-Readable text and muted colour translation that preserves useful contrast without harsh glare
-Theme support with included Anthracite presets such as Classic, OLED, Graphite, Obsidian, Cinder, Moonlight, Velvet, and Linen
-Custom themes so you can create, name, save, and reuse your own palette
-Per-site controls including the ability to disable Anthracite on individual websites
-Fun optional extras such as glow links and cursor effects, disabled by default
-Settings page with previews and theme management built directly into the extension
-No telemetry, no remote config, and no unnecessary background services
-Designed for a better dark mode

Anthracite is made for people who want dark mode to feel intentional instead of inverted, muddy, or overprocessed. It focuses on consistent surfaces, strong readability, tasteful contrast, and a cleaner overall browsing experience across the modern web.

Developed by psyopgirl.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Support site
  • Support Email
Version
0.1.1
Size
129.66 KB
Last updated
15 days ago (Mar 19, 2026)
Related Categories
  • Feeds, News & Blogging
  • Appearance
License
CC BY-NC 4.0
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version. Android is a trademark of Google LLC.