Datenschutz und Sicherheit


Extensor Kein Neustart

A toolbar panel with large icons to quickly perform common actions for all add-on types: activate, uninstall, restart application, show options, show details, show home/review/donation pages. Also useful to easily toggle themes and plugins.

Bewertet mit 5 von 5 Sternen (4)
291 Benutzer

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."

Bewertet mit 4 von 5 Sternen (30)
270 Benutzer


Forwards all emails marked Junk (as attachments) to (note: they collect email reports on the domain). KnujOn is an organization that works to shut down junk mailers by contacting law enforcement, web hosts, etc..

Bewertet mit 4 von 5 Sternen (12)
222 Benutzer


*This extension was formerly known as Okopipi*

Please be sure to visit the homepage and forums to provide your input for the future of Habu.

Support can be found at

Bewertet mit 4 von 5 Sternen (18)
198 Benutzer

Purge Events

Purge events from Sunbird and Lightning calendars

Bewertet mit 2 von 5 Sternen (6)
185 Benutzer


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.

Noch nicht bewertet
170 Benutzer

Identity Select

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...

Bewertet mit 4 von 5 Sternen (9)
156 Benutzer

POW -- Plain Old Webserver

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

Bewertet mit 5 von 5 Sternen (17)
155 Benutzer

Element Hiding Helper for Pan Kein Neustart

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

Bewertet mit 5 von 5 Sternen (1)
134 Benutzer

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.

Bewertet mit 4 von 5 Sternen (6)
126 Benutzer


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.

Bewertet mit 5 von 5 Sternen (1)
106 Benutzer

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.

Bewertet mit 4 von 5 Sternen (1)
99 Benutzer


This extension displays a warning if you send a message from your private emailID to an address/ mailing list which is not found in your Personal Address Book...

Bewertet mit 3 von 5 Sternen (6)
94 Benutzer

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.

Bewertet mit 4 von 5 Sternen (1)
85 Benutzer

Spoof Detector

Extension for Email Spoofing Detection

Bewertet mit 2 von 5 Sternen (1)
82 Benutzer

Flex Confirm Mail

Confirm mail address and attachments based on flexible rules.

Noch nicht bewertet
78 Benutzer

Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Noch nicht bewertet
77 Benutzer


Caps Killer is a protection against newbies using caps in their mails.

Bewertet mit 5 von 5 Sternen (2)
70 Benutzer

S/MIME Sicherheit für weitere Identitäten

Erweitert die Konfiguration von weiteren Identitäten um S/MIME Sicherheit.
Dieses Feature wurde inzwischen in Thunderbird 3 integriert.

Bewertet mit 5 von 5 Sternen (7)
68 Benutzer

Identity Reminder

How many times have you sent out an email and forgotten to set the appropriate email identity? Over and over I send out an email from the wrong address and promise myself I'll never forget again and from now on, I will make sure to set the...

Bewertet mit 4 von 5 Sternen (15)
62 Benutzer