Cupertino: Unofficial macOS theme for Firefox от Corbin Davenport

Cupertino is a theme for the Mozilla Firefox browser designed to match the macOS color scheme and design. It provides a more native look and feel for Firefox on Mac computers, with a curved toolbar and colors based on Finder and Safari. Cupertino supports both light and dark modes.

The developers of this theme are not associated with Mozilla or Apple, inc. The code is open-source on GitHub.