thunderbird

Install command: 
brew install --cask thunderbird

Name: Mozilla Thunderbird

Customizable email client

https://www.thunderbird.net/

/api/cask/thunderbird.json (JSON API)

Cask code on GitHub

Current version: 78.6.1

Conflicts with casks:

homebrew/cask-versions/thunderbird-beta

Analytics:

Installs (30 days)
thunderbird 884
Installs (90 days)
thunderbird 2,885
Installs (365 days)
thunderbird 10,989
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