Add-ons
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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.651,434 users -
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.68,910 users -
True "Send Later" functionality to schedule the time for sending an email.56,862 users -
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.43,903 users -
Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)26,810 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync26,643 users
Top Rated See all »
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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.967 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync26,643 users
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Macro Template is to replace mail templates with macros for date formatting.91 users -
True "Send Later" functionality to schedule the time for sending an email.56,862 users
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This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.43,903 users
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TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.68,910 users
Recently Added See all »
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Adds calendars containing the birthdays from your address books.1,369 users -
This add-on adds a new column called "تاریخ" in message list containing Iranian Date to ThunderBird..
It is reimplementation of Iranian date for thunderbird in Thunderbird 78. The source is based on Full address column by Łukasz Kosson.29 users -
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.967 users
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Adds a new Iranian(Persian/Jalali) date column to Thunderbird.1 user -
Adds a button to open Google Calendar in a new Tab8,577 users -
Extension for Lightning: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.516 users
See all 52 extensions in Calendar and Date/Time »
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