Up & Coming Extensions

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Close Proxy Authentication Requires Restart

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (5)
1,809 users

Theme Font & Size Changer (fixed)

Fixed version (no 90 day timer till silent failure) of the popular "Theme Font & Size Changer for Thunderbird" addon

Rated 4 out of 5 stars (20)
5,873 users

DKIM Verifier Requires Restart

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (17)
6,118 users

LDAP Contact Photo Requires Restart

Show contact photo stored in LDAP directory

Rated 5 out of 5 stars (6)
1,462 users

CustomizeMyBird

This add-on offers ui tweaks to improve Thunderbirds appearance (squared tabs, custom tab height, alternative Add-on Manager appearance, compact main toolbars and more). v2.3+ for Tb52-63+

Rated 5 out of 5 stars (8)
1,434 users

Duplicate Contacts Manager Requires Restart

This add-on searches the given address book(s) for matching contact entries.
It can automatically delete entries that have equivalent or less information than some other one.
Any remaining matches are presented to the user for manual treatment.

Rated 5 out of 5 stars (4)
986 users

Dorando keyconfig Requires Restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Rated 5 out of 5 stars (37)
6,460 users

Auto Compress File Requires Restart

Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).

Rated 5 out of 5 stars (18)
4,681 users

NewScrollbars [Tb 10-56] (discontinued) Requires Restart

The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".
[ not compatible with Firefox / Thunderbird 57+ ]

Rated 5 out of 5 stars (103)
10,245 users

Autohide Tabbar Requires Restart

This extension auto-hides the tab bar.

Rated 4 out of 5 stars (32)
1,540 users

ReplyWithHeader Requires Restart

Outlook style headers and few goodies for Thunderbird & Postbox.

Rated 4 out of 5 stars (14)
1,980 users

Purge! Requires Restart

Add toolbar icons to purge (compact folders) and/or delete junk messages to your toolbar and thread context...

Rated 4 out of 5 stars (17)
13 users

SendWithoutSubject Requires Restart

Send without subject and without confirmation alert

Rated 3 out of 5 stars (10)
176 users

Shedule Filters Requires Restart

Sheduled run message filters

Запуск фильтров сообщений по расписанию

Rated 4 out of 5 stars (2)
153 users

my site 1.0

it allow to browse facebook - youtube and gmail in secured way...

Rated 1 out of 5 stars (1)
0 users

Bulk List Filter Requires Restart

The Bulk List filter addon provides a set of preconfigured search folders for popular services such as Facebook, eBay, Amazon and more.

Rated 1 out of 5 stars (1)
0 users

Smilie Inserter Requires Restart

Insert smilies in messages...

Rated 4 out of 5 stars (34)
55 users

Mailing List Manager Requires Restart

Clean up your Inbox and Organize your Mailing Lists

Rated 2 out of 5 stars (15)
2 users

Customizable LDAP AddressBook Auto Complete Requires Restart

Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.

Rated 5 out of 5 stars (2)
361 users

Mia CRM Requires Restart

Import mail to MIA CRM

Not yet rated
46 users