Download Cupertino: Unofficial macOS theme for Firefox

Name: Cupertino: Unofficial macOS theme for Firefox
Author: Corbin Davenport

By: Corbin Davenport

Download Cupertino: Unofficial macOS theme for Firefox (current and past versions) for Firefox

Latest Version: 2.0 Updated: a year ago

Ready to install?

Cupertino: Unofficial macOS theme for Firefox is available to install from Firefox Add-ons Store and for download from this page.

View source code

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Daily users

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6 ratings

Total downloads

Available versions

You can find the current and older versions of Cupertino: Unofficial macOS theme for Firefox here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.

Upgrade to download older versions

Version	Download	Size	Download count	Timestamp
2.0	XPI · ZIP · Source code	115.25KB	0	2025-08-04
1.0	XPI · ZIP · Source code	38.80KB	0	2024-04-13

2025-08-04 · 0 downloads

XPI ZIP Source code

2024-04-13 · 0 downloads

XPI ZIP Source code

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

Download the Cupertino: Unofficial macOS theme for Firefox ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Cupertino: Unofficial macOS theme for Firefox ZIP file from step 1. Cupertino: Unofficial macOS theme for Firefox is now installed on your browser.