Recently Updated Extensions
Lightning Requires Restart
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
CardBook Requires Restart
A new Thunderbird address book based on the CardDAV and vCard standards.
ExQuilla for Exchange Requires Restart Featured
Thunderbird email accounts connecting to Microsoft Exchange Web Services.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Mail Redirect Requires Restart
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
Toggle Word Wrap Requires Restart
Toggle word wrapping and <PRE> element wrapping in the message composition and HTML display windows, respectively. Based on original version by Kaspar Brand.
Provider for CalDAV & CardDAV Requires Restart
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync".
Paranoia Requires Restart
Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)
BiDi Mail UI Requires Restart
Direction control and BiDi-related charset misdetection correction
Signal Spam Requires Restart
Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).
ThreadVis Requires Restart
Displays a small graphic visualising the context (thread) of the currently selected email.
Lightning Invitation Notifier Requires Restart
This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.
TbSync Requires Restart Featured
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.
Provider for Exchange ActiveSync Requires Restart
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync
Security Settings from Address Book Requires Restart
Sets message security (sign/encrypt) when sending or saving messages based on recipients' address book entry's field "Custom1".
Duplicate Contacts Manager Requires Restart
This Thunderbird add-on searches address book(s) for pairs of matching contact entries.
It can automatically delete entries that have equivalent or less information than the other one.
Any remaining matches are presented for manual treatment.
Encrypt if possible Requires Restart
Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.
CategoryManager Requires Restart
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Shrunked Image Resizer Requires Restart
Make your photos smaller, so they don't take forever to email.
Add Microsoft Office 365 Tabs to Thunderbird! Services supported by M-Hub Lite: Calendar, People, OneDrive, Word, Excel, PowerPoint, & Bing. Need business or enterprise support? Get M-Hub Pro: https://www.schiffner.com/index.php/software/m-hub-pro