Up & Coming Extensions

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Confirm-Address Requires Restart

Confirm E-mail address before sending mail

Rated 4 out of 5 stars (32)
48,933 users

Auto Address Cleaner Requires Restart

Removes comment, display name automatically from addresses before sending mail.

Rated 4 out of 5 stars (49)
16,168 users

Signal Spam Requires Restart

Cette extension va ajouter dans Mozilla Thunderbird une fonction de signalement qui vous permettra de transmettre d’un seul clic les messages que vous considérez comme spam à Signal Spam, le réseau de confiance pour agir contre le spam.

Rated 3 out of 5 stars (22)
7,874 users

GNotifier

Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.

Rated 5 out of 5 stars (13)
11,180 users

CardBook Requires Restart

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

Rated 4 out of 5 stars (66)
4,839 users

CALDAV - Search/Subscribe Requires Restart

Add CalDAV search & subscribe feature to Lightning

Rated 2 out of 5 stars (8)
1,636 users

TOrPeDO - TOoltip-poweRed Phishing Email DetectiOn Requires Restart

TOrPeDO ist ein Tool zum Erkennen von betrügerischen Links (Phishing). Bewegen Sie die Maus über einen Link in einer Email. TOrPeDO zeigt Ihnen die tatsächliche Webadresse in einem Tooltip an und hilft Ihnen, diese zu untersuchen.

Rated 4 out of 5 stars (4)
1,217 users

Any Confirmation Message before Send Requires Restart

You can set Any Confirmation Message before Send.

Rated 4 out of 5 stars (3)
1,059 users

Blinking Alert Requires Restart

Adds blink feature to the new-mail alert.
You can also disable auto-hiding of the alert.

Rated 4 out of 5 stars (27)
11,640 users

Keyword Highlight Requires Restart

Keywordhighlight changes color/size/weight of your favorite keywords...

Rated 4 out of 5 stars (20)
3,859 users

hubiC for Filelink Requires Restart

Add hubiC support to Thunderbird's Filelink feature.

Rated 4 out of 5 stars (11)
1,567 users

Splash! Requires Restart

Adds a splash screen to most Mozilla and Mozilla Based products. Supports sound, opacity, CSS customization, custom images, and much more. You can add {appVersion}, {buildID} and {userAgent} to the loading text and it will be filled in for you.

Rated 4 out of 5 stars (104)
9,000 users

SmtpSelect Requires Restart

A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.

Rated 4 out of 5 stars (38)
4,777 users

SubSwitch Requires Restart

Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.

Rated 4 out of 5 stars (7)
1,045 users

Address Close Button Requires Restart

Adds a Address Close Button to mail compose window.

Rated 5 out of 5 stars (25)
12,101 users

Too Many Recipients Requires Restart

Contourne la limite du nombre de destinataires/e-mail des serveurs SMTP.
Gets around the limit on the number of recipients/e-mail of SMTP servers.
Evita la limitación de número de destinatarios/e-mail del servidor SMTP.

Rated 3 out of 5 stars (18)
1,384 users

Menu Wizard Requires Restart

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (182)
59,764 users

Check and Send Requires Restart

Check the message contents and addresses before you send the message...

Rated 4 out of 5 stars (31)
20,957 users

TryAgain Requires Restart

TryAgain keeps trying to load a webpage when the server cannot be reached.

Rated 4 out of 5 stars (67)
6,930 users

GProxy Plus Requires Restart

GProxy Plus lets you set and clear Freegate local proxy in Firefox and Thunderbird, and do more.

Not yet rated
1,579 users