Adjust Screen Brightness

Name: Adjust Screen Brightness
Rating: 4.28 (50 reviews)
Author: Joue

By: Joue

Control your browser's global screen brightness

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Install

Features & Capabilities

The Adjust Screen Brightness Chrome extension provides an easy and customizable way to control your browser's global screen brightness. By setting different brightness levels for daytime and nighttime, users can reduce eye strain and improve reading comfort while surfing or working online.

This extension allows you to define start times for both periods, ensuring seamless transitions between your preferred brightness settings throughout the day. You can even choose to keep daytime brightness at 100% if desired. Ideal for those who spend long hours reading or working in front of a screen, it helps protect your eyes with minimal effort.

User Growth & Download Statistics

Add-on Accessibility

By:

Joue

Daily users:

6,800 24

Rating:

4.28

(50) 0.01

Version:

0.3.9 Last updated: 2026-05-09

Version code:

6253625

Creation date:

2018-02-13

Risk:

Permissions:

Host permissions:

<all_urls>

Size:

125.04KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 964 ▲ 4

Other rankings

#69 in Tabs

#146 in Appearance

#8 in screen keyword 92

#25 in screen time keyword 17

#28 in screensaver keyword 9

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Other platforms

Adjust Page Brightness (v0.3.9)

100,000 4.01

(188)

Adjust Screen Brightness (v0.3.1)

24,260 4.80

(14)

For Developers

Monetize with App Pass Boost with Extension Booster

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:

Joue

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/adjust-screen-brightness/

Website:

https://webextension.org/listing/screen-brightness.html

Permission Change History

2025-09-29: Version 0.3.6 → 0.3.7

Add Host permissions: <all_urls>

2024-07-31: Version 0.3.3 → 0.3.4

Add Permissions: scripting

2022-11-30: Version 0.1.3 → 0.2.7

Add Permissions: activeTab

Remove Permissions: webNavigation tabs <all_urls>

User Reviews

Users broadly praise Adjust Screen Brightness for making nocturnal browsing easier by dimming or brightening pages, with particular appreciation for per site controls and white listing. The extension is described as simple, lightweight, and effective for night viewing, videos, and even battery friendly adjustments by increasing brightness beyond the built in limit. The main caveat is that it can break or fail to render on some sites, and on some pages the shader does not apply immediately or loads inconsistently. Overall, it is a reliable, user friendly tool for most sites, though not perfect on every page.

Pros

Improves night time viewing and reduces eye strain by dimming content and enabling brightness beyond the built in limit when needed.
Offers per site customization and whitelisting with adjustable brightness levels and timing.
Simple, lightweight, and user friendly, making it easier to use than more complex alternatives.
Generally reliable and works on most websites for everyday use.

Cons

Page rendering issues on some sites; can break pages or make content unreadable when enabled.
Occasional reliability issues; sometimes the shader fails to load or does not apply immediately on certain pages.

Recent reviews

by ge*****, 2026-06-14

my most used extension across firefox & chrome. the only downside (& i hope it can be added in the future) is that it doesn't work when i view PDFs on firefox.

by ho*****, 2026-04-17

Works great on most websites, disable if the page doesnt load

by Fi*****, 2026-03-27

View all user reviews ›

Is Adjust Screen Brightness 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.

Adjust Screen Brightness 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.

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.

Adjust Screen Brightness is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
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