Privacy and Security

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Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Not yet rated
18 weekly downloads

Bitmask Thunderbird Extension

This extension includes:

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

Not yet rated
17 weekly downloads

Soapy

Bypasses DNS-based censorship

NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.

Not yet rated
17 weekly downloads

ThunderBayes

SpamBayes integration for Thunderbird - a better spam filter.

Rated 3 out of 5 stars (15)
16 weekly downloads

External Email Alert

Alerts user to confirm that it is ok to send an external email.

Rated 3 out of 5 stars (6)
12 weekly downloads

Sender Address Columns

Adds optional columns to the Thread Pane to allow sorting email messages by:
* Sender address -- e.g. "someone@example.com"
* Sender address domain -- e.g. "example.com"
* Sender address local part -- e.g. "someone"

Rated 5 out of 5 stars (1)
12 weekly downloads

CallingID Link Advisor

CallingID Link Advisor verifies the links you see in Firefox and Thunderbird are safe before you follow them. When the mouse is placed over any link a risk assessment and the full details of the site owner are displayed, helping you evaluate the...

Rated 2 out of 5 stars (10)
12 weekly downloads

Get before Send

Get messages for the account which is bound to the identity then send the message when you click the toolbar button or the menu item. If your SMTP sever authenticates using POP(IMAP) before SMTP, the extension is useful.

Rated 5 out of 5 stars (2)
9 weekly downloads

pass-manager

Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)

Not yet rated
10 weekly downloads

CookieFast

Fast toolbar button access to cookie management in a very small package.

Rated 4 out of 5 stars (9)
10 weekly downloads

Message Level Authentication

Authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank. Registration is FREE but not required...

Rated 2 out of 5 stars (13)
10 weekly downloads

Bork Bork Bork!

The Swedish Chef travesty filter and URL blocker. View web pages or mail as spoken by the Swedish Chef like this...

"Zee Svedeesh Cheff trefesty feelter und URL blucker. Feeoo veb peges oor meeel es spukee by zee Svedeesh Cheff leeke-a thees."

Rated 4 out of 5 stars (30)
9 weekly downloads

Enigma-code

Proste i szybkie szyfrowanie korespondencji e-mail, jak i dowolnego tekstu. Algorytm szyfrowania oparty na sposobie szyfrowania maszyny Enigma.

Not yet rated
9 weekly downloads

Notification Viewer

Identifies and displays the status of pending and received notifications (DSN, MDN) for messages sent with notification requests. To get full experience with this addon, don't forget to use DSN settings and MDN extended addons too.

Rated 4 out of 5 stars (6)
8 weekly downloads

Spamato4Thunderbird

A multi-faceted, collaborative approach against spam.

Rated 2 out of 5 stars (31)
8 weekly downloads

Cert Importer

Imports certs automatically.

Not yet rated
9 weekly downloads

CRL over LDAP

Allows importing CRL from LDAP directories.

Not yet rated
6 weekly downloads

POW -- Plain Old Webserver

Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.

Rated 5 out of 5 stars (17)
6 weekly downloads

Do Not Save Password

Prevents to save passwords.

Not yet rated
5 weekly downloads

Highlight External Addresses

This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.

Rated 4 out of 5 stars (1)
5 weekly downloads