Privacy and Security

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Flex Confirm Mail

Confirm mail address and attachments based on flexible rules.

Not yet rated
78 users
Updated March 4, 2014

Disable Addons

Disable Addons.

Not yet rated
2 users
Updated February 27, 2014

Do Not Save Password

Prevents to save passwords.

Not yet rated
7 users
Updated February 27, 2014

Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Not yet rated
77 users
Updated February 24, 2014

Clear IMAP Local Cache

Clears IMAP local cache on startup.

Not yet rated
58 users
Updated February 24, 2014

Cert Importer

Imports certs automatically.

Not yet rated
13 users
Updated February 18, 2014

Hostname in Titlebar

Adds a hostname, URL, or email account ID to the titlebar to make it recognizable to password manager utilities like KeePass.

Rated 5 out of 5 stars (23)
3,673 users
Updated February 16, 2014

ToggleFullHeaders

Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.

Not yet rated
39 users
Updated February 13, 2014

ChiaraMail

Enhances Thunderbird with Envelope-Content Splitting (ECS) technology to provide you with a superior e-mail experience, including:

1. Preventing eavesdroppers from reading your mail
2. Protect against e-mail address "spoofing"

and much more.

Rated 5 out of 5 stars (1)
106 users
Updated February 13, 2014

FoxyProxy Basic

FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.

Rated 4 out of 5 stars (23)
32,550 users
Updated February 3, 2014

Saved Password Editor

Adds the ability to create and edit entries in the password manager.

Rated 5 out of 5 stars (167)
90,304 users
Updated January 25, 2014

GNOME keyring password integration

Extension that allows Firefox and Thunderbird to store passwords in Keyring, Gnome's default password store.

Rated 3 out of 5 stars (9)
419 users
Updated January 17, 2014

Paranoia

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

Rated 4 out of 5 stars (5)
683 users
Updated January 13, 2014

StartupMaster No Restart

Asks for the master password at startup (fixes multiple password prompt)

Rated 4 out of 5 stars (188)
13,357 users
Updated January 4, 2014

Bitmask Thunderbird Extension

This extension includes:

* A wizard for creating Bitmask email accounts on Thunderbird.
* Cache prevention for Bitmask accounts.

Not yet rated
39 users
Updated December 23, 2013

TBTracer

Shows all of Thunderbird's human-readable network traffic.

Rated 4 out of 5 stars (9)
812 users
Updated December 4, 2013

BorderColors GT

How many time you sent an email from your wrong email address?
This add-ons allows you assign a different color to the compose window border for each of your email addresses. So you can immediately view from what account are you writing.

Rated 4 out of 5 stars (5)
3,231 users
Updated December 4, 2013

Yet Another Remove It Permanently

Remove elements and block content on Web pages.

Rated 5 out of 5 stars (15)
1,693 users
Updated November 25, 2013

Confirm-Address

Confirm E-mail address before sending mail

Rated 4 out of 5 stars (25)
42,867 users
Updated November 18, 2013

Check Domain

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

Rated 4 out of 5 stars (3)
1,442 users
Updated November 14, 2013