Most Popular Extensions
Chat RTL Requires Restart
Fixing the Chat so it would support RTL languages (i.e. Hebrew, Arabic) better.
Options Toolbar Button Requires Restart
Easy Get Mail Button Requires Restart
Makes the 'Get new messages' button context-sensitive. Select an account root folder to get messages for that account, any other folder to get messages for all...
Channel Guard Requires Restart
Channelguard disables plugins and protocol handlers to ensure maximum security against side-channel attack.
IO.Translator Requires Restart
即时在线汉英互译 - Instant Online Translator (Chinese-English)
Custom Alarms Requires Restart
Customize the reminder dropdown in Sunbird and Lightning's event and task dialog.
To configure this extension, open the addon preferences from the addons manager.
SanRockstar Requires Restart
Hide Clear List Button Requires Restart
Hide the "Clear List" Button in the Download Manager.
Color Source Requires Restart
Add syntax highlighting of code in various languages to email messages via context menu.
Copy Link Name for Thunderbird Requires Restart
It's like Copy Link Name for Firefox but for Thunderbird!
gTimer Requires Restart
gTimer предназначен для подсчёта времени, проводимого за работой в Firefox.
rmIncomingDups Requires Restart
rmIncomingDups is a Thunderbird extension that checks if there are duplicate messages across accounts.
When a new mail arrives rmIncomingDups checks according to the rules configured if it finds some duplicates and removes them.
xultray for gecko 1.9.2 Requires Restart
Show xul application (gecko 1.9.2 based) in system tray. supports Firefox 3.6 / 3.7 , Thunderbird 3.1
Indian Language Transliterator Requires Restart
Indian Language Transliterator (developed at IIIT Hyderabad, India) is a Mozilla Thunderbird Add-on, developed to enable Thunderbird users to compose and send messages in 10 Regional Indian Languages, using their regular QWERTY keyboard!!!
manoderecha Requires Restart
Assists to setup a chat account for manoderecha
Thunderled Requires Restart
For ASUS laptop owners, each time a new email is in your inbox, the email led will switch on...
Lowercase Email Addresses in Message Headers Requires Restart
Shows lowercase email addresses in message headers and their tooltips.
Ethical signature Requires Restart
Add a button to the email composition toolbar, which lets you insert an ethical signature.
nowebsearch Requires Restart
Removes web search feature
Reject Button 1.0 Requires Restart
Annoyed by receiving mails with missing or wrong subjects or meaningless message bodies? Simply reject them with the Reject Button Add-On and enforce proper e-mail etiquette at the cost of just a few friendships.