Add-ons
Most Popular See all »
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True "Send Later" functionality to schedule the time for sending an email.114,801 users -
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.44,746 users -
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync23,704 users -
Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)20,944 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.18,703 users -
This extension is no longer needed. Thunderbird has native CalDAV and CardDAV support.11,774 users
Top Rated See all »
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Macro Template is to replace mail templates with macros for date formatting.531 users -
True "Send Later" functionality to schedule the time for sending an email.114,801 users
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Integrates calendars events with Gnome clock applet683 users
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Extension for Lightning: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.34 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.44,746 users
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This extension is no longer needed. Thunderbird has native CalDAV and CardDAV support.11,774 users
Recently Added See all »
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Automatically assigns categories to calendar events based on keywords in the title. Supports custom colors and configurable time ranges.0 users
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Extracts events from emails using local AI (Ollama) and registers them to CalDAV.0 users
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Summarize your emails with AI, then know what should i do.0 users -
Shows time city/state and 24-hour local time for NANPA & international codes. Area Code locator6 users -
Provides the 'Show in Mail' URL to be added in an iOS/macOS Calendar event referering to the message ID. Can also be customized for gmail URLs using the custom URL format in the extension preferences.17 users
See all 74 extensions in Calendar and Date/Time »
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