automaticDark - Time-Based Theme Changer Firefox

automaticDark - Time-Based Theme Changer

Automatically change Firefox's theme based on the time.
automaticDark - Time-Based Theme ChangerautomaticDark - Time-Based Theme ChangerautomaticDark - Time-Based Theme Changer
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Features & Capabilities

automaticDark is a Firefox WebExtension designed to enhance your browsing experience by automatically switching themes based on the time of day. Enjoy a dark theme during nighttime to reduce eye strain and a light theme during the day for optimal visibility.

This extension offers multiple configuration options including automatic calculation of sunrise and sunset times using your geolocation, manual setting of these times, or switching themes according to your operating system's theme. It's a simple yet effective tool to keep your browser's appearance comfortable and adaptive without manual intervention.

For support and feedback, users can contact the developer via email or submit issues on GitHub. If you find the extension useful, consider leaving a rating or review to support its development.

User Growth & Download Statistics

Manifest V2 Add-on Design
By:
simonkhzhang
Daily users:
17,193 -320
Rating:
4.36
(207)
Version:
1.4.1 Last updated: 2023-02-28
Version code:
5530426
Creation date:
2017-11-17
Risk:
Low risk impact Very low risk likelihood
Permissions:
Size:
197.43KB
Email:
si*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-05
Compare stats and ranking:

Ranking

# 552 â–Ľ 4
Other rankings
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For Developers

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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:
simonkhzhang
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/automatic-dark/
Email:
si*****@gmail.com
Website:
https://github.com/skhzhang/time-based-themes/issues

Publisher Change History

2024-06-09: si*****@gmail.com to si*****@gmail.com

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Permission Change History

2023-02-28: Version 1.4.0 → 1.4.1
Add Permissions: theme

User Reviews

Users generally praise the extension when it works, with strong positive sentiment (even calling it perfect). The core feature—time-based dark mode switching—is acknowledged, including cases where it activates at the scheduled time. However, reliability is a recurring concern: multiple reviews report the extension doesn’t function, or behaves inconsistently, undermining trust in its automated behavior.
Pros
  • Works perfectly; extension performs as expected.
  • Positive sentiment; users love it and describe it as "Perfect!"
  • Supports time-based switching to dark mode (scheduled activation)
Cons
  • Not working / reliability issues; some users report it doesn’t work at all.
Recent reviews
Automation based on the system theme doesn't work (FF 149 Windows). I don't understand how this can be "recommended"
by Ne*****, 2026-05-11
Firefox 149 on macOS Tahoe 26.4 - Doesn't work - Tried automatic settings, tried set to system settings, tried manual setting...all the same...nice idea but 👎🏻
by Fi*****, 2026-04-04
This extension works perfectly and I love it, but I think adding a feature to change the wallpaper would be great
by Dx*****, 2026-03-11
View all user reviews ›

Is automaticDark - Time-Based Theme Changer 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.

automaticDark - Time-Based Theme Changer requires very minimum permissions.

Risk impact analysis details
  • Medium Manages other extensions, which allows oversight but might intervene with user configurations and choices.
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.

automaticDark - Time-Based Theme Changer has earned a good reputation and can be trusted.

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