Dark Mode - Dark Theme Firefox

Dark Mode - Dark Theme

Dark mode for every website. A customizable dark theme that's easy on your eyes, day or night. Free, no tracking, no ads.

Features & Capabilities

Dark Mode - Dark Theme turns every website into a comfortable, eye-friendly dark theme — instantly. No more squinting at glowing white pages at midnight, no more battery-drain on OLED screens, no more waiting for sites to add their own dark mode.

━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT IT DOES ━━━━━━━━━━━━━━━━━━━━━━━━━

• Generates a high-quality dark theme for any website on the fly • Works on the messy pages other dark-mode tools give up on • Preserves images, videos, and intentional brand colors • Lets you fine-tune brightness, contrast, sepia, and grayscale • Saves per-site preferences so each site looks exactly the way you want • Schedules dark mode by time of day or follows your system theme • One keyboard shortcut to toggle on or off (Alt+Shift+D)

━━━━━━━━━━━━━━━━━━━━━━━━━ DESIGNED FOR LATE NIGHTS ━━━━━━━━━━━━━━━━━━━━━━━━━

We built Dark Mode for the writer wrapping up a draft at 1 AM, the developer reading docs in bed, the student researching at the kitchen table after the lights go out, and anyone whose eyes deserve a break from default bright-white screens.

Default settings ship with a slightly warmer balance (95 brightness, 105 contrast, 5 sepia) — just enough sepia to take the harsh edge off whites without making everything feel like an old paperback.

━━━━━━━━━━━━━━━━━━━━━━━━━ THREE THEME ENGINES ━━━━━━━━━━━━━━━━━━━━━━━━━

• Dynamic — analyzes each page and crafts a custom dark theme (best quality, recommended default) • Filter — fast CSS filter inversion (best on slower machines) • Static — applies a minimal stylesheet (most predictable)

Switch between them with one click in the popup. Each site can use a different engine.

━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY FIRST ━━━━━━━━━━━━━━━━━━━━━━━━━

We don't collect anything. No analytics. No telemetry. No accounts. No "anonymous" tracking. No data leaves your browser, period.

The extension runs entirely on your device, using bundled configuration files for theme generation. There are no remote servers to phone home to, because we don't have any.

Your settings stay on your machine, optionally syncing through your browser's built-in sync (which we cannot see). Read the full policy at https://darkmodes.org/privacy.html.

━━━━━━━━━━━━━━━━━━━━━━━━━ FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━

• Brightness, contrast, sepia, grayscale sliders • Custom font and stroke options • Per-site theme overrides • Allow-list and block-list for sites • Time-based or system-theme automation • Keyboard shortcuts (Alt+Shift+D toggle, Alt+Shift+A per-site) • Multiple color schemes (Default, Pitch Black, Sepia, Ocean, more) • Detection of sites that already provide dark mode (won't double-apply) • PDF reader dark mode

━━━━━━━━━━━━━━━━━━━━━━━━━ PERMISSIONS, EXPLAINED ━━━━━━━━━━━━━━━━━━━━━━━━━

• Read and change all data on websites — required to inject the dark theme CSS into the pages you visit • Storage — saves your preferences locally on your device • Alarms — runs the time-based schedule, if you enable it • Tabs — knows which tab you're on so per-site settings apply correctly • Context menu (optional) — lets you toggle from the right-click menu • Font settings (optional) — only used if you choose to override site fonts

━━━━━━━━━━━━━━━━━━━━━━━━━ FREE FOREVER ━━━━━━━━━━━━━━━━━━━━━━━━━

No paywall. No "Pro" tier. No nag screens. No "support our work" pop-ups. Just a tool that does one thing well, and stays out of your way.

━━━━━━━━━━━━━━━━━━━━━━━━━ SUPPORT ━━━━━━━━━━━━━━━━━━━━━━━━━

Questions, bug reports, or feature requests? Email harryngh@gmail.com.

Website: https://darkmodes.org Privacy: https://darkmodes.org/privacy.html Terms: https://darkmodes.org/terms.html

User Growth & Download Statistics

Manifest V2 Add-on
By:
Harry N.
Daily users:
21 3
Rating:
5.00
(1)
Version:
1.1.1 Last updated: 2026-05-27
Version code:
6280599
Creation date:
2026-05-22
Risk:
High risk impact High risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
Size:
840.81KB
Email:
ha*****@gmail.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-04
Compare stats and ranking:

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:
Harry N.
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/dark-mode-dark-theme/
Email:
ha*****@gmail.com
Website:
https://darkmodes.org

User Reviews

It works OK
by Hu*****, 2026-05-25
View all user reviews ›

Is Dark Mode - Dark Theme 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.

Dark Mode - Dark Theme requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • 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.

Dark Mode - Dark Theme is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

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