thunderbird@daily

Install command: 
brew install --cask thunderbird@daily

Name: Mozilla Thunderbird Daily

Customizable email client

https://www.thunderbird.net/en-US/download/daily/

Development: Pull requests

Cask JSON API: /api/cask/thunderbird@daily.json

Cask code: thunderbird@daily.rb on GitHub

Current version: 154.0a1,2026-07-20-10-19-50

Requirements: macOS

Analytics:

Installs (30 days)
thunderbird@daily 16
Installs (90 days)
thunderbird@daily 50
Installs (365 days)
thunderbird@daily 110