Thunderbird:Code Layout

The first two are particularly relevant:

mozilla/mail

Thunderbird specific files:

• app: icons and other requirements for app packaging
• base: main XUL/JS files
• components
  • addrbook
  • build
  • compose
  • migration
  • phishing
  • preferences
  • search
  • shell
• config
• extensions
  • newsblog
  • smime
• installer
• locales
• themes

mozilla/mailnews

Infrastructure shared by Thunderbird and Seamonkey, and some Seamonkey specific code as well (the latter being migrated to suite/ over time).

• addrbook: Address Book
• base
• build
• compose: email composition widget
• db:
• extensions
• imap
• import
• local
• mapi
• mime
• movemail
• news
• public