Colorless for Firefox

Name: Colorless for Firefox
Rating: 5 (5 reviews)
Author: hereafter

By: hereafter

Remove colors from a web page that it becomes black and white, or sepia.

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Install

Features & Capabilities

If applied, the web page will become black and white only. or Sepia, if the user chooses this preference in options.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.0.1.1resigned1 Last updated: 2024-04-26

Version code:

5733182

Creation date:

2019-02-14

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

389.54KB

Email:

tu*****@outlook.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-10

Compare stats and ranking:

Ranking

# 12,212 ▼ 149

Other rankings

#77 in change color keyword 16 ▲ 1#130 in color keyword 58 ▲ 1#142 in firefox keyword 20 ▼ 1#209 in foe keyword 20 ▼ 3

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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:

hereafter

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/colorless-for-firefox/

Email:

tu*****@outlook.com

Website:

https://github.com/hereafter/colorless

User Reviews

So relaxing to turn off all these colours, thanx !

by Pa*****, 2026-01-08

I have a fairly uncommon problem with bright colors while using a computer. They give me migraines. Microsoft believes in using RGB values of 255,255,255 for all of their applications. I found ways to set those values to lower values in Word, Excel, outlook, etc, using the registry. But Microsoft Teams allows nothing of the sort. For me, 255 is super bright and gives me migraines. Up until today I used a chrome extension that allowed me to make everything black and white. Then Chrome said NO MORE for that app. Edge has nothing similar. THANK YOU, Hereafter!!!

by Je*****, 2025-07-15

by 敬念*****, 2025-04-10

View all user reviews ›

Is Colorless for Firefox 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.

Colorless for Firefox requires some sensitive permissions that could impact your browser and data security. 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.
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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.

Colorless for Firefox has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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