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Confirm-Address2 Requires Restart

Confirm E-mail addresses before sending mail.
This is forked from https://github.com/Meatian/confirm-address and works with Thunderbird 68.

Rated 5 out of 5 stars (2)
125 users

Check Domain Requires Restart

This extension is to display the warning dialog when you send mail for multiple domains.

Rated 4 out of 5 stars (4)
113 users

Logout

This extension adds "Logout" to the folders/accounts context menu.

After you "Logout" you will be asked again for passwords for this account (incoming and outgoing) without the need to restart thunderbird.

Rated 5 out of 5 stars (1)
108 users

Automatic Export Requires Restart

exports by an intervall or after pressing the button selected calendars in a defined folder in two modes - normal and backup...

On my homepage is the current version.
Here on this site it takes a long time after i publish a new version.

Rated 4 out of 5 stars (48)
99 users

Remote Content By Folder

Decide whether to allow or block remote content in messages by comparing the names of the folders in which they are located to configured regular expressions.

Rated 4 out of 5 stars (3)
96 users

CookieKeeper

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (80)
83 users

Safelink removal

Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.

Not yet rated
82 users

Sensitivity Header Requires Restart

Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.

Rated 5 out of 5 stars (2)
82 users

TorBirdy Requires Restart

This extension configures Thunderbird to make connections over the Tor anonymity network.

Rated 4 out of 5 stars (14)
70 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 5 out of 5 stars (8)
68 users

confirm-mail Requires Restart

メール送信前に宛先メールアドレスと添付ファイル名を確認することができるアドオンです。

Rated 3 out of 5 stars (4)
66 users

SpoofDetection

Diese Erweiterung überprüft ungelesene E-Mails auf Spoofingversuche. Die E-Mails werden mithilfe von fünf unterschiedlichen Tests untersucht um deren Legitimität festzustellen. Die Tests werden einzeln erklärt auf der Einstellungsseite.

Rated 3 out of 5 stars (2)
55 users

Security Settings from Address Book Requires Restart

Sets message security (sign/encrypt) when sending or saving messages based on recipients' address book entry's field "Custom1".

Rated 5 out of 5 stars (2)
52 users

Thunderbird-DontRestoreTabs Requires Restart

Allows the user not to restore tabs at startup in Thundertbird

Rated 4 out of 5 stars (3)
51 users

Clear IMAP Local Cache Requires Restart

Clears IMAP local cache on startup.

Rated 5 out of 5 stars (1)
47 users

Autocrypt Requires Restart

E-Mail encryption that gets out of your way. Compatible with Autocrypt and OpenPGP.

EARLY ACCESS, MAY CONTAIN BUGS!

Caution: This extension can not be used together with Enigmail. Please remove Enigmail before installing.

Rated 4 out of 5 stars (10)
47 users

clamdrib LIN Requires Restart

"clamdrib LIN" ist wie der Name schon sagt die Weiterentwicklung des Add-on clamdrib, allerdings nur noch für Linux. Sämtliche E-Mails, Feeds und News werden auf Viren und anderes Ungeziefer geprüft und gemeldet. Gelöscht wird hierbei jedoch nichts!

Rated 4 out of 5 stars (6)
32 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 4 out of 5 stars (18)
32 users

DSN Settings 2 Requires Restart

Adds user interface settings for Delivery Status Notification (DSN) requests. This addon is useful for settings for Delivery Notification request and better experience with Notification Viewer addon.

Rated 3 out of 5 stars (2)
32 users

Certificate Patrol Requires Restart

Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.

Rated 4 out of 5 stars (68)
30 users