Recently Updated Extensions
MEGAbird Requires Restart
Add MEGA support to Thunderbird's Filelink feature.
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
ThunderHTMLedit Requires Restart
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
Secure Addressing Requires Restart
This add-on provides features to avoid sending emails to wrong addresses. Key features are a confirmation window of recipient's addresses upon sending, name and affiliation look up at mail composition and main windows, and safe auto completion.
filemail Requires Restart
Move mails to the same folder where previously mails have been moved from this author by hitting a single key
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync
ThunderLink Requires Restart
Creates links to specific messages inside Thunderbird.
Mark All Read Button Requires Restart
Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.
ConfirmFolderMove Requires Restart
Introduces a preference that allows users to be prompted before moving folders.
ResetRec Requires Restart
ResetRec allows you to reset the recipient list.
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).
NoComposeAccount Requires Restart
Have the option of Thunderbird always using the default sender account or a blank account when composing or replying to messages
CardBook Requires Restart Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
Confirm-Address Requires Restart
Confirm E-mail address before sending mail
Tidybird Requires Restart
Organize email into folders quickly and easily.
Adds two columns to the list of mails. One shows an indicator wether a mail is incoming or outgoing, the other shows the sender or the recipient of the mail respectively...
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
QuickFolders (Tabbed Folders) Requires Restart
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Emoji Requires Restart
Add emojis to your e-mails.