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KeeBird Requires Restart

Use KeePass Password Safe to manage your login credentials.

This is the replacement for the KeeFox extension for Thunderbird.

Rated 4 out of 5 stars (5)
562 users

Correct Identity Requires Restart

Ever sent mail from the wrong email address because you forgot to select the correct identity?

Rated 4 out of 5 stars (105)
1,710 users

Keychain Services Integration Requires Restart

Store usernames and passwords in your Mac OS X Keychain.

Rated 4 out of 5 stars (92)
25 users

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)
48 users

WarnAttachment Requires Restart

WarnAttachment shows an additional dialog to confirm potentially dangerous attachments. Some attachments like executables etc. are completely blocked. This reduces the risk of malware especially for inexperienced users.

Rated 5 out of 5 stars (3)
782 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)
152 users

Trueblock Plus Requires Restart

Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.

Rated 4 out of 5 stars (44)
18 users

Identity Select Requires Restart

This extension allows you to choose the identity of your new email from a popup menu directly from the Write button. This feature behaves in a similar manner as the Get Mail pulldown menu. In addition, the default behavior of the Write button is...

Rated 4 out of 5 stars (10)
0 users

Thunderbird-DontRestoreTabs Requires Restart

Allows the user not to restore tabs at startup in Thundertbird

Rated 5 out of 5 stars (1)
81 users

Paranoia Requires Restart

Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)

Rated 4 out of 5 stars (9)
1,367 users

Password Exporter

This add-on allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Note: This add-on won't work in Firefox 57. It may eventually if the APIs to access passwords are implemented.

Rated 4 out of 5 stars (550)
1,264 users

GProxy Tool Requires Restart

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

Rated 4 out of 5 stars (8)
1 user

Enigmail Featured

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Rated 4 out of 5 stars (222)
128,767 users

Element Hiding Helper for Pan

Help you create element hiding rules for Pan to fight the text ads.

Rated 4 out of 5 stars (8)
1 user

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 (5)
100 users

TorBirdy Requires Restart

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

Rated 4 out of 5 stars (8)
773 users

XML Digital Signature Tool Requires Restart

XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)

Rated 5 out of 5 stars (4)
0 users

KDE5 Wallet password integration Requires Restart

This extension enable passwords and form logins to be stored in KDE5 Wallet

Rated 4 out of 5 stars (29)
10 users

Show Password On Input Requires Restart

Gives an option to show the master password on input

Rated 4 out of 5 stars (11)
71 users

Fingerfox (SE) Requires Restart

Use MS Fingerprint Reader with Firefox and Thunderbird...

Rated 4 out of 5 stars (12)
4 users