firefox@nightly

Install command: 
brew install --cask firefox@nightly

Name: Mozilla Firefox Nightly

Web browser

https://www.mozilla.org/firefox/channel/desktop/#nightly

Development: Pull requests

Cask JSON API: /api/cask/firefox@nightly.json

Cask code: firefox@nightly.rb on GitHub

Current version: 158.0a1,2026-09-13-08-44-23 (auto-updates)

Requirements: macOS

Languages: ca, cs, de, en-CA, en-GB, en, es, fr, it, ja, ko, nl, pt-BR, ru, uk, zh-TW, zh

Artifacts:

Artifact Type Platform
Firefox Nightly.app -> /Applications/Firefox Nightly.app App Default platforms

Analytics:

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Installs2199973,470