Most Popular Extensions
Find Preferences Requires Restart
Stores find service data in preferences so that it persists across restarts.
Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.
forcebutton Requires Restart
This add-on can resend mails, so you "force" the other side to answer. It could be useful at corporate environment.
TB Change From and Fcc on Compose Extension Requires Restart
You can now temporarily change the from and fcc on...
Get An Account Requires Restart
Get An Account is a Mozilla Messaging addon that will allow you to create a secure, private account at a major email provider.
Toggles Development Profile Preferences On When Enabled And Off When Disabled.
To fastest your browser to surfing internet without extension gif.
Muestra una notificación cuando se recibe un mensaje de chat.
Tategaki Requires Restart
Tategaki allows vertical writing-mode on mail compose window.
xultray for gecko 1.9.1 Requires Restart
Show xul application (gecko 1.9.1 based) in system tray. supports Firefox 3.5, Thunderbird 3.0.
Kukkuniiaat Requires Restart
A Greenlandic spell checker for Mozilla products.
This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.
AlexPro for Thunderbird Requires Restart
AlexPro add-on per ThunderBird è un componente per l'archiviazione dei messaggi ricevuto o inviati nelle Pratiche AlexPro.
MR Tech - Gant Icon Pack Requires Restart
This icon pack is specifically designed to replace the menu icons supplied by MR Tech Local Install (should work with my MR Tech About:About 2.x & Toggle Preview Pane extensions too). As a request from Frackounet (French locale translator) I...
BrowsrBounce Requires Restart
Do links not load in the correct browser? Are they not loading at all? BrowsrBounce will fix that for you.
ltnPlus Requires Restart
Support printing of tasks for Lightning 0.8/0.9.
Up to version 0.2:
Enhancements to Lightning that are known from Sunbird: Unifinder (for events and todos) and moving MiniMonth to Tabpanel
about:support Requires Restart
A Mozilla Messaging addon to assist in product support.
Archived Link Requires Restart
Archived Link displays the URL of the Archived-At email message header field (RFC-5064) as a hyperlink.
Archived-At Requires Restart
Add menu items for copying Archived-At (RFC 5064) URLs from emails