Grayscale Bro

A minimal Firefox extension for monochrome browsing. Supports dark theme and grayscale only on selected hostnames. [Notice: Doesn't work at mozilla pages]

Grayscale Bro: Simplify Your Browsing Experience

Grayscale Bro is a minimalistic Firefox add-on designed for monochrome browsing. With this extension, users can enable a dark theme and grayscale functionality on selected hostnames, allowing for a more focused and distraction-free experience.

Please note that Grayscale Bro does not work on Mozilla pages and may encounter issues with certain layouts, specifically those with position:fixed elements. As an open-source project, we welcome contributions and suggestions to enhance its functionality. You can view the source code on GitHub. Explore the world of grey with Grayscale Bro!

Manifest V2
By:
xpmn
Daily users:
518 -7
Rating:
4.45
(11)
Version:
0.6.2 (Last updated: 2024-02-02)
Version code:
5686684
Creation date:
2020-06-21
Permissions:
  • tabs
  • storage
Size:
18.09K
URLs:
Website
Full description:
See detailed description
Updated:
11 hours ago

User reviews

Grayscale Bro is praised for effectively applying grayscale mode and allowing selective site control, providing a mostly smooth user experience. However, users frequently report problems with fullscreen videos and standalone images, including black screens and partial image visibility. Some also note color conversion inaccuracies on certain pages, suggesting improvements in grayscale processing would benefit the add-on.
Pros
  • Effectively converts web pages to grayscale as intended.
  • Allows users to enable grayscale mode on selected websites only.
  • User-friendly and works well across most websites.
  • Good control features for managing grayscale application.
Cons
  • Issues with fullscreen videos or images showing a black screen while audio continues.
  • Problem with images displayed alone where only the bottom half is visible, top half scrolls off-screen.
  • Color conversion inaccuracies leading to unexpected color changes instead of proper grayscale on some pages.
Recent reviews
Tried a couple different greyscale extensions, but this is the one. Perfect.
by mijji, 2025-01-16


It incorrect work. RGB色数値の計算・処理が正しくない。 例 灰色→オレンジ色になる 明るい灰色→白になる ページの下になにもない大きい空間が生まれる 「明度」ではなく「輝度」の数値をグレースケールに使ってください。 良い点: 「このページに有効」がある
by IWD1, 2024-10-11
View all user reviews

Extension safety

Risk impact
High risk impact

Grayscale Bro 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.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
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Risk likelihood
Moderate risk likelihood

Grayscale Bro 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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