Add-ons
Calendar and Date/Time
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Lightning
Requires Restart
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Send Later
Requires Restart
True "Send Later" functionality to schedule the time for sending an email.
TbSync (Provider for Exchange ActiveSync)
Requires Restart
Synchronize Exchange ActiveSync accounts (contacts, tasks and calendars) to Thunderbird, supports Office 365, Outlook.com, Freenet, Strato, Hotmail, Kopano and other EAS compatible servers.
Lightning Calendar Tabs
Requires Restart
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.
Lightning Colors Reminder
Requires Restart
Let's show the calendar color on Lightning reminders!
G-Hub Lite
Requires Restart
Add Google Tabs to Thunderbird! Services supported: Voice, Calendar, Drive, Docs, Sheets, Slides, Hangouts, Plus, Photos, Contacts, News, Maps, & many more. Need Google Apps? Check out G-Hub Pro: http://www.schiffner.com/index.php/software/g-hub-pro
lightningWeather
Requires Restart
LightningWeather shows the weather forecast in the background of the calendar so you can easily coordinate your activities with the weather.
NoiaButtons [Fx45-56][Tb45-58]
The 'NoiaButtons' add-on offers cartoonish toolbar button icons (known from Noia themes) for default theme and lightweight themes. Further more lite silver and dark versions of Noia themes are included.
Lightning Invitation Notifier
Requires Restart
This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.
AdvancedTasks
Requires Restart
Thunderbirds Lightning Extension: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.
EDS Calendar Integration
Requires Restart
Integrates calendars events with Gnome clock applet
IMPORTANT:
Plugin may hang on Fedora.
As a workaround uninstall evolution-ews.
Todo.txt Extension
Requires Restart
Thunderbird extension for the Todo.txt application
Lightning Reminder Left Buttons
Requires Restart
Tired to mistakenly press that "Dismiss All" button? Move the Lightining Reminder "Snooze all for" and "Dismiss All" buttons to the LEFT!
... and from version 2.0 you can keep them on the RIGHT, but swapped!
Show Calendar Week
Requires Restart
Shows the calendar week Thunderbird/Lightning calendar's moth and multi-week view.
Purge Events Plus
Requires Restart
Purge events from Sunbird and Lightning files and thereby cleanes the calendar
ConferenceCall.co.uk templates
This plugin adds our savvy email templates to your Thunderbird toolbar.
NirvanaHQ
MultiBirthdaysReminder
Requires Restart
This addon is now integrated into the new address book CardBook and thus it is no longer maintained
StormCows
Requires Restart
Allows two-way access between Remember The Milk and calendar events or todo items.
To create your own collections, you must have a Mozilla Add-ons account.
