seamonkey
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Description:
Development of SeaMonkey Internet Application Suite
Type: Cask  |  Latest Version: 2.53.23@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Productivity
Tags: browser email-client web-development suite html-editor
Install: brew install --cask seamonkey
About:
SeaMonkey is an open-source internet application suite derived from the Mozilla codebase. It bundles a web browser, email and newsgroup client, HTML editor, and web development tools into a single package. This suite provides a unified interface for comprehensive web browsing and development tasks.
Key Features:
  • All-in-one suite: Browser, Email/News client, IRC chat, and Web Editor
  • Built-in Page Source and DOM Inspector for web development
  • Support for legacy and NPAPI plugins
  • Tabbed browsing with session restore capabilities
  • Lightweight compared to modern multi-app workflows
Use Cases:
  • Web development and debugging using built-in inspector tools
  • Managing email, newsgroups, and IRC from a single application
  • Browsing the web with support for legacy web technologies
Alternatives:
  • Firefox – Firefox focuses solely on browsing, whereas SeaMonkey offers a full suite including email and HTML editing.
  • Thunderbird – Thunderbird is a dedicated email client, while SeaMonkey integrates email with a browser and composer.
Version History
Detected Version Rev Change Commit
Dec 31, 2025 1:57pm 2.53.23 0 VERSION_BUMP 8cd345c8