Miscellaneous
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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.
SendTools Requires Restart
Add SendAt option to the compose window to allow sending a message on a particular date and...
SendVia Requires Restart
Sometimes you need to select a specific SMTP server for sending the current message? Then SendVia is for you.
SendVia provides the `Send' button of message composition windows with a drop-down menu from which you can select or create the SMTP server...
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.
Shift-Delete Controller Requires Restart
Controls shift-delete button behavior. Confirmation dialog is optionally displayed in user defined...
Skiff Mail
Integrates a Skiff Mail button into the Spaces toolbar. It opens the Skiff Mail website in a new tab.
Skiff Mail - Quick Access
Quick Access to Skiff Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Slack - Quick Access
Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
SmartTemplate Requires Restart
This Add-on provides the smart and simple templates and abilities to customize the quote header flexibly.
Templates can be inserted automatically at the new/repling/forwarding message. A different template can be used respectively per account.
SMTP Control Requires Restart
SMTP Control is a Thunderbird Add-ons offering dynamic selection of outbond SMTP server while sending a message.
By default thunderbird offer the ability to define a list of SMTP servers. With one global default server for all email accounts or one ...
SmtpSelect Requires Restart
A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.
SmtpSwitch Requires Restart
SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.
Snakes by Bluemods
Classic Snakes game at your fingertips.
Snakes by Bluemods is a free-to-play single-player classics arcade game designed and developed by Justin Gates at Bluemods.com. The game allows the players to maneuver a snake made up of tiny squares.
SortRecipients Requires Restart
SortRecipients lets you alphabetically sort the recipients lists (To/Cc) when composing a message, simply by clicking the Sort button, which it adds to the Compose window toolbar.
Spacebar Clicker
With Spacebar Clicker, gamers can now test their spacebar speed within the browser. Every gamer can install the extension and practice to increase how many times they press the spacebar.
To create your own collections, you must have a Mozilla Add-ons account.