Featured Extensions

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Enigmail Featured

Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.

Rated 4 out of 5 stars (260)
65,260 users

CompactHeader Requires Restart Featured

Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.

Rated 5 out of 5 stars (190)
11,856 users

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (358)
71,905 users

Mail Merge Featured

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (195)
69,615 users

Mail Redirect Requires Restart Featured

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (143)
5,625 users