Most Popular Extensions
Account Manager Toolbar Button Requires Restart
about:support Requires Restart
A Mozilla Messaging addon to assist in product support.
Zendesk Widget Requires Restart
Provides a simple integration with Zendesk by displaying some information about the ticket when you open the notification mail for the ticket
This extension is not affiliated with Zendesk in any way. The Zendesk logo is (c) by Zendesk.
PassToScript extension Requires Restart
Extension to pass e-mail in eml (raw) format directly to the script specified
Don't Send Linked Files Requires Restart
Prevents sending of linked files if they are file: URLs.
Contact DnD Requires Restart
Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.
This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.
InfoQube Firefox extension Requires Restart
Extension to import html into InfoQube
Submit Word (Romanian) Requires Restart
An extention that allows users to submit words for inclusion in the Romanian dictionary.
CorrectLink Requires Restart
Do you have a trouble that Thunderbird have made a link with non-ASCII characters after URL in text/plain message ?
CorrectLink solve this issue.
Date on Thunderbird Requires Restart
Hidden Archive Prefs Requires Restart
Exposes hidden archiving preferences that allow the user to choose whether or not they want to keep the current directory structure when archiving and if they want to create folders yearly or monthly (or just keep it in one folder).
Search in all your search engines at the same time
Mukparasi Korean-English Dictionary File Requires Restart
A Korean-English dictionary file for Mukparasi.
Live in harmony with ads.
AdSidebar is an alternative to traditional ad blocker extensions that benefits both the user and content creators. Ads are displayed in a sidebar on the right side of the screen.
JIRA Integration Plugin (Beta) Requires Restart
Create Jira Tickets directly from within Mozilla Thunderbird (based on E-Mails). This Addons saves your Username and Password in clear text. Use on your own risk. (Also, you might need to disable the CSRF Filter in your JIRA Instance.)
Force Authentication at Startup. Requires Restart
Always ask password and hide UI at the startup.
Mukparasi Requires Restart
A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.
This plugin adds our savvy email templates to your Thunderbird toolbar.