Add-ons
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.97,305 users -
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.78,818 users -
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.51,418 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.33,412 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync31,841 users -
Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)26,435 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.1,591 users -
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.85 users -
Macro Template is to replace mail templates with macros for date formatting.374 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync31,841 users
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Adds a Proton Calender button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.239 users -
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.51,418 users
Recently Added See all »
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Adds a Proton Calender button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.239 users
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Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/4,351 users -
Adds calendars containing the birthdays from your address books.3,704 users -
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.85 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.1,591 users
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Adds a new Iranian(Persian/Jalali) date column to Thunderbird.2 users
See all 53 extensions in Calendar and Date/Time »
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