Add-ons
Most Popular See all »
-
True "Send Later" functionality to schedule the time for sending an email.111,157 users -
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.50,095 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync26,243 users -
Displays tabs which allows quick navigation between time periods in Lightning calendar. All views of calendar are supported. Color of tab texts can be adjusted.24,768 users -
Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)21,000 users -
This extension is no longer needed. Thunderbird has native CalDAV and CardDAV support.15,601 users
Top Rated See all »
-
Macro Template is to replace mail templates with macros for date formatting.572 users -
True "Send Later" functionality to schedule the time for sending an email.111,157 users
-
Integrates calendars events with Gnome clock applet630 users
-
This add allow to customize the snooze delay when snooze popup appears (lightning required).723 users -
Extension for Lightning: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.40 users
-
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.50,095 users
Recently Added See all »
-
This plugin offers to create new events based on the email subject and content144 users -
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Outlook Calendar.618 users -
*Display Gantt View and Year View
*Task Time Planning: daily, distribute your open tasks into open time slots.
*Show parent/child relationships for tasks238 users -
Allows to use links to messages in the description field of events and task81 users -
Thunderbird lacks the ability to create and manage allday tasks. This add-on adds these capabilities.381 users
See all 67 extensions in Calendar and Date/Time »
To create your own collections, you must have a Mozilla Add-ons account.
