Privacy and Security

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No Resource URI Leak No Restart

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 5 out of 5 stars (11)
3,132 users

Yet Another Remove It Permanently

Remove elements and block content on Web pages.

Rated 4 out of 5 stars (42)
2,135 users

Pan No Restart

Block ads and manage proxy.

Rated 5 out of 5 stars (89)
3,982 users

Close Proxy Authentication

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (3)
4,506 users

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)
37 users

IsAdmin

Shows whether the application is running with admin privileges, using an icon in the status bar; useful if logged in as an administrator and you use privilege limitation tools such as DropMyRights, RunAs or Windows User Account Control.

Rated 5 out of 5 stars (10)
649 users

DSN Settings

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

Rated 4 out of 5 stars (1)
96 users

CookieFast

A small ergonomic 1-click cookie manager.

Rated 4 out of 5 stars (10)
355 users

Security Settings from Address Book

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)
438 users

ThunderSec

ThunderSec is a security extension that provides several pieces of additional security functionality, including DNS-based Blackhole List (DNSBL), Realtime Blackhole Lists (RBL), DomainKeys Identified Mail (DKIM) and Sender Policy Framework (SPF).

Rated 5 out of 5 stars (4)
467 users

Native AdBlocker No Restart

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (6)
445 users

Key Manager

KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation

Rated 3 out of 5 stars (21)
958 users

MDN Extended

Allows the recipient of a message to send a return receipt (MDN: Message Disposition Notification) on message deletion. This addon is usefull for better experience with Notification Viewer addon.

Rated 5 out of 5 stars (1)
26 users

AlertSwitch

Turn on/off the alert shown when new message arrives.

Rated 4 out of 5 stars (3)
826 users

clamdrib LIN

"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 1 out of 5 stars (1)
462 users

DSN Settings 2

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.

Not yet rated
121 users

External Email Alert

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

Rated 3 out of 5 stars (6)
383 users

XML Digital Signature Tool

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 4 out of 5 stars (3)
200 users

CRL over LDAP

Allows importing CRL from LDAP directories.

Not yet rated
7 users

Sensitive Attachment Guard

A Thunderbird add-on censor sensitive attachments (currently Microsoft Office documents) from being sent to unintended recipients.

Not yet rated
1 user