Search

Send Later

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

Rated 5 out of 5 stars (263)
102,656 users

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 (251)
73,277 users

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)
29,219 users

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)
3,135 users

Lightning Colors Reminder Requires Restart

Let's show the calendar color on Lightning reminders!

Rated 4 out of 5 stars (4)
258 users

G-Hub Lite

Google Tabs for Thunderbird! G-Hub Lite supports Calendar, Contacts, Drive, Docs, Sheets, Slides, Maps, Search, & Voice. Need Google Workspace support (formerly G Suite)? Check out G-Hub Pro: https://www.schiffner.com/index.php/software/g-hub-pro

Rated 4 out of 5 stars (22)
3,984 users

Lightning Invitation Notifier | LIN

This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.

Rated 4 out of 5 stars (2)
2,102 users

Todo.txt Requires Restart

Thunderbird extension for the Todo.txt application

Rated 4 out of 5 stars (15)
122 users

EDS Calendar Integration

Integrates calendars events with Gnome clock applet

Rated 5 out of 5 stars (23)
761 users

mailmindr

Follow up for Thunderbird E-Mails.

Web: https://mailmindr.net/
Twitter: @mailmindr

Rated 4 out of 5 stars (76)
3,158 users

Purge Events Plus Requires Restart

Purge events from Sunbird and Lightning files and thereby cleanes the calendar

Rated 4 out of 5 stars (9)
75 users

More Snooze

This add allow to customize the snooze delay when snooze popup appears (lightning required).

Rated 5 out of 5 stars (10)
700 users

Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Rated 5 out of 5 stars (9)
484 users

G Suite in tab

Now you can open G Suite App in Thunderbird tabs. (Calendar, Contacts, Keep, Task and Drive)

Rated 5 out of 5 stars (7)
1,548 users

Dropbox Paper

How Does It Work?
Once you install the add-on, a new icon will appear in the Thunderbird toolbar. Simply click on the icon, and it will open the Dropbox Paper tab.

Will the Dropbox Paper Add-on Collect My Data?
Never.

Not yet rated
47 users

Open Google Calendar

Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)

Rated 4 out of 5 stars (77)
22,982 users

GCalTab

GCalTab is a Thunderbird add-on that opens Google Calendar website in a Thunderbird tab. It features a beautiful dark mode thanks to the DarkReader algorithm.

Rated 5 out of 5 stars (11)
1,780 users

Proton Calendar Toolbar Button

Adds a Proton Calendar button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.

Rated 5 out of 5 stars (7)
608 users

Google Calendar Tab

Adds a button to open Google Calendar in a new Tab

Rated 4 out of 5 stars (15)
9,120 users

Mahour-Iranian-Date

This add-on adds a new column called "تاریخ" ("Date (Persian)" since V1.1.3) in message list containing Iranian Date.

It is reimplementation of Iranian date for Thunderbird 78. The source is based on Full address column by Łukasz Kosson.

Rated 5 out of 5 stars (5)
11 users