Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
Recently Updated Extensions
Send text and images to Microsoft Office OneNote from firefox. With section dialog, we can select an OneNote section to store page with title.
Allows URI texts written in webpages to be loaded by double clicks.
RemindIt No Restart
Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.
This addon adds awesome statistics to your beloved Thunderbird!
Mail Redirect Featured
Allow to redirect (a.k.a. "bounce") mail messages to other recipients.
S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.
New Feature: Language learning!
Squared Australis Tabs (Tb) No Restart
A small and simple extension, which replaces the curved tabs of the Australis design with squared ones, similar to Thunderbird v14 and prior.
VCard Addressbook : a new addressbook for Thunderbird based on the VCARD standards
True "Send Later" functionality to schedule the time for sending an email.
Follow up for Thunderbird E-Mails. Lightning or other AddOns are not required. Set a reminder by adding a label or by context menu and let mailmindr remind you.
Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).
Closing the window closes the active tab instead of the window.
This extension implements a convenient way to check and upload attachments against VirusTotal.com
Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).
Feedly Synchronizer No Restart
Synchronize your favorite RSS sources with Thundebird and Feedly
Hitsteps Analytics is a powerful real time website visitor manager, it allow you to view and interact with your visitors in real time.
Assists to setup a chat account for manoderecha
Lists the request flags for a specified requestee
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.