SeaMonkey vs Windows Live Mail : Which is Better?

SeaMonkey

SeaMonkey is a free and open-source Internet suite. Developed by The SeaMonkey Council

License: Open Source

Apps available for Mac OS X Windows Linux BSD PortableApps.com

Windows Live Mail is the successor to Windows Mail on Windows Vista, which was the successor to Outlook Express on Windows XP. Developed by Microsoft

License: Free

Apps available for Windows Discontinued

Feature	SeaMonkey	Windows Live Mail
WYSIWYG Support
Add-ons
Built-in Download Manager
Built-in RSS reader
Customizable
Extensible by Plugins/Extensions
Firefox Extensions
Support for Firefox extensions
Integrated Email Client
Lightweight
Modular System
Plugins
Portable
Privacy focused
Security & Privacy
Built-in Ad-blocker
Support for TOR
Cloud sync
Android Sync
Built-in Adobe Flash Player
Support for IMAP
Encryption
Tab Stacking
UI customization
Group tabs
Built-in VPN
Bookmarks
Extensions
Based on Blink engine
Chrome-like
Web Browsers Based on Chromium
Customizability
Developer Tools
Web Browsers Based on Firefox
Web Development
Auto Updates
Block trackers
Bookmark organization
Calendar integration
Automatic Backup
Built-in themes
Built-in translation
Address book integration
Built-in Calendar
Exchange
CalDAV
Clean design
Multiple Account support
Sync across Devices
Undo send
Asana integration
Sync Contacts
Bundled with macOS
CardDAV
Encrypted Email
Content Filtering
Box.com integration