Mozilla Firefox Nightly
brew install --cask firefox@nightly
v154.0a1,2026-06-19-04-41-08
Pre-release Firefox build with experimental features updated nightly for testing.
Why you might care
Install this if you want to test bleeding-edge Firefox features before they reach stable releases, or if you're a developer evaluating upcoming changes. It updates daily and may contain bugs.
464
30-day installs · #502
986
90-day · #644
3.1k
365-day · #735
Links
- https://www.mozilla.org/firefox/channel/desktop/#nightly
- Brew formula source: Casks/f/firefox@nightly.rb
Blurb generated by claude-haiku-4-5 on today.
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"homepage": "https://www.mozilla.org/firefox/channel/desktop/#nightly",
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