blaubird, baby!

by Melchior Blausand

15 Add-ons in this Collection

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 192 reviews

136,641 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Master Password+ by V@no

Rated 4 out of 5 stars 136 reviews

20,280 users

Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows

Contact Tabs by speedball2001

Rated 4 out of 5 stars 53 reviews

16,640 users

Contact Tabs enhances Thunderbird to give you quick access to all your contacts directly from Thunderbird's main window: Use the powerful search field to find your contacts and open them in a new tab for viewing and editing.

XNote++ by Lorenz Froihofer

Rated 5 out of 5 stars 66 reviews

20,547 users

Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.

Display Mail User Agent by Jürgen Ernst

Displays icon for user agent of received mails.

ThunderBirthDay by ingomueller.net

Rated 4 out of 5 stars 85 reviews

16,210 users

Display birthdays from the Thunderbird addressbooks as events in Lightning.

AddressBookTab by pastisman

Rated 4 out of 5 stars 61 reviews

16,527 users

It adds a button that can be put in toolbars and that open the addressbook in a new tab

MinimizeToTray Plus by Michael B.

Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.

Minimize applications to the system tray.

Lightning QR Code Add-on by Harald Judt

Rated 5 out of 5 stars 8 reviews

3,053 users

Integrate QR codes for calendar events into tooltips for easy transfer to mobile devices.

QuoteCollapse by Michael J Gruber

Rated 4 out of 5 stars 26 reviews

6,477 users

Collapse and expand quotes. Please see the extension homepage for further information.
Note that MozDev has shut down long ago (mailing list etc). Add-On homepage, source code and issue tracker are on GitHub, as linked on this page.

FolderFlags by Ryan Lee

Rated 5 out of 5 stars 8 reviews

3,820 users

Allows users to edit the flags Thunderbird sets on folders.

sipgateFFX for Firefox and Thunderbird by sipgate

Rated 3 out of 5 stars 19 reviews

2,572 users

The sipgate extension enables a practical overview for your account, direct call list notifcations, a speed access to several parts of sipgate's website, initiaiting click2dial calls, sending messages and faxes directly from your browser.

THUNDER!Box by Honolulu Henk

Rated 4 out of 5 stars 28 reviews

1,327 users

Thunder!Box allows transferring contacts from your Thunderbird-Addressbook to the phonebook of a connected AVM FRITZ!Box FON router and back. You may also use your addressbook to initiate calls.

MR Tech Toolkit by mrtech

Rated 4 out of 5 stars 143 reviews

1,795 users

(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.

Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...

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