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TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Rated 5 out of 5 stars (262)

69,227 users

Upload large attachments to your Cloud and send the link by email

Rated 5 out of 5 stars (50)

35,425 users

This extension is no longer needed. Thunderbird has native CalDAV and CardDAV support.

Rated 5 out of 5 stars (54)

28,298 users

Add-ons