How to Enable, Install, Change, Choose Firefox Alpenglow Theme

Mozilla added a colorful default theme called Alpenglow to Firefox 81 which supports Windows 10 light and dark app mode. Firefox Alpenglow and is a mix of purple, pink, and black gradients, brings color to Firefox Windows, menus, and buttons.

How to Enable, Install, Change, Choose Firefox Alpenglow Theme
How to Enable, Install, Change, Choose Firefox Alpenglow Theme

There are three ways to enable the Firefox Alpenglow theme in Firefox start from 81, here’s how.

Table of contents

Prerequisite
Customize UI menu
Add-ons manager
Firefox Add-ons site

Prerequisite

Customize UI menu

Step 1: Open Firefox.

Step 2: Click on the menu button which is a three-lined icon located in the upper right corner.

Step 3: Choose Customize.

Go to Firefox Customize menu
Go to Firefox Customize menu

Step 4: Click the Themes button at the bottom of the screen.

Step 5: Choose Firefox Alpenglow from the Theme dropdown box.

Choose Firefox Alpenglow from the Theme dropdown box.
Choose Firefox Alpenglow from the Theme dropdown box.

Step 6: Click the Done button.

Add-ons manager

Step 1: Open Firefox.

Step 2: Click on the menu button which is a three-lined icon located at the upper right corner.

Step 3: Choose Add-ons.

Go to Firefox Add-ons
Go to Firefox Add-ons

Step 4: Choose the Themes option at the sidebar.

Step 5: Scroll down to locate the Firefox Alpenglow theme, click the Enable button.

Enable Firefox Alpenglow theme.
Enable Firefox Alpenglow theme.

Firefox Add-ons site

Step 1: Open Firefox.

Step 2: Browse to the Firefox Alpenglow theme add-on page.

Browse to the Firefox Alpenglow theme add-on page.
Browse to the Firefox Alpenglow theme add-on page.

Step 3: Click the Install Theme button.

Step 4: Click the Add button to install Firefox Radiance (the themes original name)

Click the Add button to install Firefox Radiance
Click the Add button to install Firefox Radiance

Step 5: Click the Okay, Got It button.

Click the Okay, Got It button.
Click the Okay, Got It button.