seamonkey

Install command: 
brew install --cask seamonkey

Name: SeaMonkey

Development of SeaMonkey Internet Application Suite

https://www.seamonkey-project.org/

Cask JSON API: /api/cask/seamonkey.json

Cask code: seamonkey.rb on GitHub

Current version: 2.53.20

Current version requires: macOS >= 10.11

seamonkey is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
    softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.

Analytics:

Installs (30 days)
seamonkey 22
Installs (90 days)
seamonkey 79
Installs (365 days)
seamonkey 320
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