GNOME Light Theme for Firefox

Name: GNOME Light Theme for Firefox
Author: Mr A.Cloud

Another GNOME Light Theme for Firefox inspired by Rafael Mardojai's Firefox GNOME Theme. This theme was created using Firefox Color Add-on. Looks best with my custom userChrome.css file

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-08-22

Version:

1.0

Last updated: 2024-04-30

Features & Capabilities

Unfortunately, I don't know why, the awesome Firefox GNOME theme by Rafael Mardojai (https://github.com/rafaelmardojai/firefox-gnome-theme) doesn't work for me. Therefore I decided to create my own GNOME Light Theme with Firefox Color (https://color.firefox.com/).

Tested with

Debian GNU/Linux Stable 12.5
Gnome 43.9
Adwaita Light Style
Firefox browser 115.10.0esr

For the best experience you need to create a separate file for CSS and remove Firefox' title bar

Remove title bar:

Right click on Tabs bar (empty space near tabs) > Customize Toolbar
In the bottom left, uncheck the "Title Bar" option

Create a userChrome.css file:

Go with Firefox to about:config and find the preference toolkit.legacyUserProfileCustomizations.stylesheets set it to true. BE CAREFUL! This preference is required to load the custom CSS in Firefox.
Find your Profile and create a folder named chrome
Quit Firefox
Create a new text file inside the chrome folder named userChrome.css
Edit userChrome.css with your text editor and paste this code:
.titlebar-button{ list-style-image: none !important; appearance: none !important; } .titlebar-button > .toolbarbutton-icon{ appearance: auto !important; background: none !important; width: unset !important; height: unset !important; } .titlebar-min { appearance: auto !important; -moz-default-appearance: -moz-window-button-minimize !important; } .titlebar-max { appearance: auto !important; -moz-default-appearance: -moz-window-button-maximize !important; } .titlebar-restore { appearance: auto !important; -moz-default-appearance: -moz-window-button-restore !important; } .titlebar-close { appearance: auto !important; -moz-default-appearance: -moz-window-button-close !important; }
.tab-background{ outline: none !important; box-shadow: none !important; }
Save the file
Restart Firefox

Enjoy your new theme!

Tags: Debian Gnome Adwaita Theme Firefox Light Grey

User Growth & Download Statistics

Theme

By:

Mr A.Cloud

Daily users:

Version:

1.0 Last updated: 2024-04-30

Version code:

5735975

Creation date:

2024-04-30

Risk:

Size:

7.54KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-22

Compare stats and ranking:

Ranking

# 95,835 ▲

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:

Mr A.Cloud

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/gnome-light-theme-for-firefox/

Is GNOME Light Theme 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.

GNOME Light Theme for Firefox does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no risk.

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.

GNOME Light Theme for Firefox 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.
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