Most Popular Extensions
Equations Requires Restart
Insert inline LaTeX equations into e-mail messages.
MDN Extended Requires Restart
Allows the recipient of a message to send a return receipt (MDN: Message Disposition Notification) on message deletion. This addon is usefull for better experience with Notification Viewer addon.
Notikeys Requires Restart
Send notification to notikeys on new message arrival
One-click reinstall last installed addon, useful when developping restartless addon
BugFlags Requires Restart
Lists the request flags for a specified requestee
Complete master password Requires Restart
The goal is to avoid to have to enter the master password on application startUp.
The extension is not self-sufficient, a script has to extract the master for a secure storage like gnome-keyring, then to transfer it through an environment variable.
RM: EXTERNAL: Requires Restart
Removes 'EXTERNAL: ' from the start of an email subject if it is preceded by 'RE:' or 'FWD:' (case insensitive). The removal is done after the 'Send' button is pressed.
TipsTrade Ticket Buttons Requires Restart
This extension parses emails for TipsTrade Tickets and VRMs and creates a menu that links directly to the vehicle in the Broking Applications. Add the "Ticket" button to the email preview toolbar. Click on the button to generate tipstrade:// links
Show a title header above messages.
Rescue Conflicting Alternatives Requires Restart
Converts a mail with conflicting alternative bodes to regular multipart mail.
PasteIP Requires Restart
Easy pasting of your IP address or User-Agent in a textbox. Comes in handy when posting on forums, etc.
Open Long Url Requires Restart
Adds an option to your File menu to allow you to open long, multi-line...
MessageID-Finder Requires Restart
MessageID-Finder is a addon for the Mozilla mail/news-client and Thunderbird which helps you to find the message to a certain...
Fix Tb Titlebar Extension Requires Restart
You can now modify the Titlebar of TB's main...
TB QuickMove Extension Requires Restart
You can now move (or copy ) messages to common folders quickly...
Easy Get Mail Button (NEW) 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 accounts...
Open all links Requires Restart
Open all http(s) links in an e-mail message with a single click...
xmpp4moz Requires Restart
xmpp4moz integrates the XMPP protocol (also known as Jabber) into Mozilla applications.
ThunderBayes Requires Restart
SpamBayes integration for Thunderbird - a better spam filter.