Add-ons
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.97,195 users -
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.74,302 users -
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.47,899 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.31,482 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync31,380 users -
Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)24,490 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.1,610 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.90 users -
Macro Template is to replace mail templates with macros for date formatting.389 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync31,380 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.47,899 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.74,302 users
Recently Added See all »
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Copies the timestamp of the current email to the clipboard in various formats. Useful when you need the time in ISO format, other country's format or you want to refer to it like a mail received AT and FROM "2023-05-14 23:59:59 sender@example.com".2 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.352 users -
Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/4,542 users -
Adds calendars containing the birthdays from your address books.3,566 users -
Turn the dates and time references in your email (e.g. "tomorrow", "in 2 hour") into clickable links. Clicking them will create an event at the corresponding date.34 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.90 users
See all 55 extensions in Calendar and Date/Time »
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