Add-ons
Miscellaneous
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ChatZilla
Requires Restart
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
ImportExportTools
Requires Restart
Adds some tools to import and export folders and messages
Mail Redirect
Requires Restart
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
Join-NG
Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Standalone SeaMonkey Mail
Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.
Flexible Identity
Requires Restart
Selects an identity based on the recipients list when sending an email
Session Manager
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.
Lightbird
Quote Colors
Requires Restart
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
QuickNote
PlayFlash 32bit
Requires Restart
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 for Adblock Plus
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
Copy Plain Text 2
Mouse Gestures Suite
Requires Restart
Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.
Clean Subject
Requires Restart
"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.
Copy As Plain Text
Disable Addon Compatibility Checks (Version 4-56)
Reinstates the extensions.checkCompatibility preference.
Send Filter
Requires Restart
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.
To create your own collections, you must have a Mozilla Add-ons account.
