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Mailsleuth
Requires Restart
Mailsleuth is a add-on for Thunderbird that provides you a full email header analysis of any email in your Inbox. This add-on is designed to provide a report on the email headers on any email you choose from your inbox. MAJOR updates for Feb 2013!
Folder Levels
Requires Restart
Rank your email folders by how much you care about them, and hide the ones you don't need right now.
CodeHighlight
Unread Count
Requires Restart
Maintains a file in the profile root directory with counts for unread messages per account. Useful for display in generic status bar, e.g.: taffybar, xmobar, dzen2, etc
Mail and Save Tab URLs
Requires Restart
If you often share web page addresses (URLs) with others or save them in text file, bookmark, or copy to clipboard for your own reference, this extension will make your life easier!
ReloadPAC
Requires Restart
Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).
sepsis-console (Deprecated)
Requires Restart
THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.
sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.
Winmail Opener Bridge
Requires Restart
Opens attached winmail.dat by Winmail Opener automatically.
Equations
Get before Send
Requires Restart
Get messages for the account which is bound to the identity then send the message when you click the toolbar button or the menu item. If your SMTP sever authenticates using POP(IMAP) before SMTP, the extension is useful.
Lock The Text
Requires Restart
Encrypt your text data in browser before you submit it to a network
eMarks
Requires Restart
Email Bookmarks are here ! ... eMark your important emails.
Do you have an email that will need to revisit/attend later on ? Would you like to keep it handy and get it with a simple click ? Bookmark your important emails with the eMarks addon.
Fast Close Tabs
Requires Restart
Closing the window closes the active tab instead of the window.
Collapsed Unread
Requires Restart
Shows unread email count for collapsed folders even if the unread mails are in subfolders.
CapsKiller
Requires Restart
Caps Killer is a protection against newbies using caps in their mails.
Rikaichan Japanese-Dutch Dictionary File
Requires Restart
This is a dictionary file add-on for the Rikaichan extension.
All mail from all accounts
Requires Restart
Add a toolbar button to send and receive all mail from all accounts for Leopard theme.
To create your own collections, you must have a Mozilla Add-ons account.
