Extensions by Name
Extremely thin tabs optimized for the squared variants of Classic Theme Restorer.
Please see description for updates!
ThreadBubble Requires Restart
Make Thunderbird resort threads by date when a new message arrives. *** This add-on is no longer required for new versions of Thunderbird! ***
ThreadKey Requires Restart
Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view
ThreadVis Requires Restart
Displays a small graphic visualising the context (thread) of the currently selected email.
THUNDER!Box Requires Restart
Thunder!Box allows transferring contacts from your Thunderbird-Addressbook to the phonebook of a connected AVM FRITZ!Box FON router and back. You may also use your addressbook to initiate calls.
ThunderBayes Requires Restart
SpamBayes integration for Thunderbird - a better spam filter.
Thunderbird Are Go Requires Restart
This plays audio to boost emotion when Mozilla Thunderbird start up.
Mozilla Thunderbird Are Go!
Thunderbird Biff Requires Restart
This add-on provides a visual indicator of new Thunderbird mail availability in supported clients (Firefox, Sunbird) and Thunderbird itself. Note: you MUST install this add-on in BOTH Thunderbird and supported clients as there are both client AND ser...
Thunderbird Chat Notification Requires Restart
Chat notification for Mozilla Thunderbird. Notification with alert (click on alert open conversation) and sound.
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.
Thunderbird Integration for JIRA Requires Restart
This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.
Thunderbird Message Filter Import/Export Requires Restart
Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.
Thunderbird Message Filter Import/Export Enhanced Requires Restart
Thunderbird Message Filter Import/Export Enhanced is a compatibility port of Wind Li's add on.
Original add on here: https://addons.mozilla.org/en-US/thunderbird/addon/thunderbird-message-filter-imp/
Thunderbird Pedophile Reporter Requires Restart
This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.
ThunderBird Ticker Requires Restart
Extension for creating support tickets based on mail.
Thunderbird-DontRestoreTabs Requires Restart
Allows the user not to restore tabs at startup in Thundertbird
ThunderBirthDay Requires Restart
Display birthdays from the Thunderbird addressbooks as events in Lightning.
Thunderbook Requires Restart
Export messages (including RSS items) as e-books.
ThunderBridge Requires Restart
P2P e-mail delivery.
ThunderBrowse Requires Restart
Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!