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Filter SubFolders
Requires Restart
Applies mail filters to sub folders of an IMAP account, not just the Inbox
replyTo
Requires Restart
Adds a menuitem to the Mail context Menu to Reply to a different Mailadress
Buttons!
Requires Restart
Adds buttons to the Thunderbird toolbars such as Next! and Previous! buttons for navigating through all messages instead of just unread ones. See homepage for more...
TheRealURL
Requires Restart
Get URL information: expand short URLs, get title and content type information without visiting the site.
UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.
Alphanumerator
Requires Restart
Convert alphanumeric phone numbers to just numbers. Simply highlight the text, right-click it, and click "Alphanumerate". For example, 1-800-PICK-UPS would be converted to...
Zhong Wen
Requires Restart
Mouse over a Chinese character to find out it's meaning. A popup will appear showing the 'Pinyin' pronunciation, the simplified character form, and the English translation. You can customize what parts to show on the preferences window.
Signature Fixer
External Email Alert
Requires Restart
Alerts user to confirm that it is ok to send an external email.
Massey Omura Cryptosystem
Requires Restart
Add On Keamanan EMail dengan Massey Omura Cryptosystem
Add Birthdays To Calendar
Requires Restart
Birthdays from addressbook-contacts will be added as events to Lightning...
Autohide Folders panel
Requires Restart
Extension automatically hides the folders panel. The folder panel can be seen by placing the mouse pointer in the left corner of the window or by Accel-1 shortkey.
LDAP - View Groups Members
Requires Restart
Allow the user to view the members of the LDAP directories in the addressbook
BccBlocker
Requires Restart
A ThunderBird extension to prevent the use of the Bcc field.
Bcc is the worst thing ever.
It kills transparency inside an organization.
If you use the Bcc feature, you should ask yourself why..
Identity Checker
Requires Restart
This add-on checks to sender identity when send a message.
random(signature)
File Bug Report
Requires Restart
For testers and developers who submit bug reports: Adds "File Bug Report" command to Tools menu. Opens browser at the Bugzilla enter-bug page in guided format with product and build identifier.
BorderColors
Requires Restart
Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.
XPCOMViewer
SmtpSwitch
Requires Restart
SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.
Contact DnD
Requires Restart
Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.
To create your own collections, you must have a Mozilla Add-ons account.
