ImportExportTools Reinício necessário
Adds some tools to import and export folders and messages
ChatZilla Reinício necessário
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Highlighter Reinício necessário
Quickly highlight some text in Thunderbird message composing windows.
Join-NG Reinício necessário
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Quote Colors Reinício necessário
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
Year view Reinício necessário
Year view for calendar.
Lightbird Reinício necessário
Standalone calendar UI for Lightning
Flexible Identity Reinício necessário
Selects an identity based on the recipients list when sending an email
Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
QuickNote Reinício necessário
A simple note-taking extension.
Send Filter Reinício necessário
This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.
Gmail Manager NG Reinício necessário
Based on Gmail Manager by Todd Long. This fork is intended to a supported version of Gmail Manager since Todd appears to have gone MIA. Manage multiple Gmail accounts and receive new mail notifications.
Clean Subject Reinício necessário
"Clean Subject" cleans the subject from multiple occurrences of subject prefixes such as ("Re: Re-2: Re:") and postfixes that are inserted by other clients. Words like "[SPAM]" can be cleaned as well. These prefixes can be defined in the preferences.
Contact Photos Reinício necessário
Displays contact photos in the message header.
Copy Plain Text 2 Reinício necessário
Copies text without formatting
PlayFlash 32bit Reinício necessário
Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.
SyncKolab Reinício necessário
SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).
Add-ons Manager Context Menu Reinício necessário
Add more items to Add-ons Manager context menu.