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TMS Bulk SMS Requires Restart
Send SMS text messages directly from Thunderbird, without using a tethered phone! Integrates with Thunderbird's Address Book and allows SMS mailing lists for quick and easy bulk or individual messaging. Uses Flash Media Group's SMS service.
Mukparasi Requires Restart
A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.
replyTo Requires Restart
Adds a menuitem to the Mail context Menu to Reply to a different Mailadress
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.
Trueblock Plus Requires Restart
Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.
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.
QuickFilter Unreplied Requires Restart
Battered with Emails? Need to sort them out? This extension adds a button to the Quick Filter toolbar that shows only unreplied emails. The extension works instantly, just install and look at your Quick Filter toolbar.
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
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.
To create your own collections, you must have a Mozilla Add-ons account.