Search

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 3 out of 5 stars (1,649)
200,587 users

Download Now

Enigmail

Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.

Rated 4 out of 5 stars (260)
4,838 users

Download Now

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (443)
72,855 users

Download Now

Manually sort folders

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Rated 4 out of 5 stars (618)
16,341 users

Download Now

gContactSync Requires Restart

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Rated 4 out of 5 stars (416)
16,636 users

Download Now

ExQuilla for Exchange

Thunderbird email accounts connecting to Microsoft Exchange Web Services.

Rated 4 out of 5 stars (131)
5,361 users

Download Now

Mail Merge

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (226)
70,876 users

Download Now

LookOut (fix version)

LookOut decodes winmail.dat (TNEF encoded) files that may come from a misconfigured Microsoft Exchange server or Outlook user allowing access to the original attachments
Support: Thunderbird

Rated 4 out of 5 stars (95)
182,397 users

Download Now

DKIM Verifier Featured

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (45)
18,687 users

Download Now

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (265)
108,691 users

Download Now

Quicktext

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 4 out of 5 stars (463)
135,971 users

Download Now

Remove Duplicate Messages

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Rated 4 out of 5 stars (290)
100,188 users

Download Now

TbSync

TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Rated 5 out of 5 stars (252)
78,607 users

Download Now

Mail Redirect Requires Restart

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (144)
3,272 users

Download Now

Thunderbird Conversations Featured

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Rated 4 out of 5 stars (553)
28,753 users

Download Now

Signature Switch

Switch the signature on/off or choose a new one from your predefined set.

Rated 4 out of 5 stars (272)
51,177 users

Download Now

CompactHeader Requires Restart

Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.

Rated 5 out of 5 stars (191)
17,227 users

Download Now

Lightning Calendar Tabs

Zobrazí záložky, pomocí kterých je možné rychle přepínat aktuální období v kalendáři Lightning. Všechny pohledy kalendáře jsou podporovány. Je možné upravit barvu textů záložek.

Rated 4 out of 5 stars (24)
30,591 users

Download Now

QuickFolders (Tabbed Folders)

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!

Rated 5 out of 5 stars (187)
15,629 users

Download Now

ReminderFox Requires Restart

ReminderFox zeigt und verwaltet Listen von Erinnerungen und Aufgaben. ReminderFox nutzt einfach zu verwendende Listen mit Warnungen/Alarmen, um Sie an alle Ihre wichtigen Termine zu erinnern.
Reminderfox synchronisiert auch mit anderen Kalendern

Rated 4 out of 5 stars (550)
3,187 users

Download Now