Mozilla Firefox Nightly

Cask Browsers v155.0a1

Web browser

About

Install Mozilla Firefox Nightly on macOS with Homebrew Cask using `brew install --cask firefox@nightly`. Mozilla Firefox Nightly is a Browsers app with version 155.0a1,2026-07-27-08-17-24. The package is listed in homebrew/cask. The cask supports auto-updates.

Include Homebrew Installation

Install 1 App in Terminal

brew install --cask firefox@nightly

Source: homebrew/cask Auto-updates: Yes Website Homebrew

System Requirements

macOS:

Installs

Firefox Nightly.app

Official Homebrew Stats

Install activity metrics for Mozilla Firefox Nightly.

-21.0% vs 90d avg

30 Days

294 total installs

10 installs / day avg

90 Days

1.1K total installs

12 installs / day avg

1 Year

3.2K total installs

9 installs / day avg

Frequently asked questions

How do I install Mozilla Firefox Nightly with Homebrew?

Run brew install --cask firefox@nightly in Terminal to install Mozilla Firefox Nightly as a Homebrew cask on macOS.

What kind of app is Mozilla Firefox Nightly?

Mozilla Firefox Nightly is listed as a Browsers app in Homebrew Cask and FastBrew currently shows version 155.0a1,2026-07-27-08-17-24.

What should I check before installing Mozilla Firefox Nightly?

Check any caveats, conflicts, auto-update behavior, and the official homepage before installing.

Related Browsers Apps

View All

Google Chrome

Popular

Web browser

cask Browsers v150.0.7871.187

Mozilla Firefox

Popular

Web browser

cask Browsers v153.0

ChromeDriver

Popular

Automated testing of webapps for Google Chrome

cask Browsers v151.0.7922.47

Brave

Popular

Web browser focusing on privacy

cask Browsers v1.92.144.0

Chromium

Popular

Free and open-source web browser

cask Browsers vlatest

DB Browser for SQLite

Popular

Browser for SQLite databases

cask Browsers v3.13.1