Privacy and Security

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Mailsleuth

Mailsleuth is a add-on for Thunderbird that provides you a full email header analysis of any email in your Inbox. This add-on is designed to provide a report on the email headers on any email you choose from your inbox. MAJOR updates for Feb 2013!

Rated 3 out of 5 stars (7)
790 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)
710 users

Fetch Text URL (fix version)

Open text URLs from the context menu.

Rated 5 out of 5 stars (5)
568 users

Export All Certificates

Adds an option to export all root certificates.

Rated 5 out of 5 stars (1)
560 users

Conspiracy

Shows flag/country of involved Certification Authorities (CAs) for secured pages.

Rated 5 out of 5 stars (3)
495 users

TheRealURL

Get URL information: expand short URLs, get title and content type information without visiting the site.

UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.

Rated 3 out of 5 stars (7)
454 users

Element Hiding Helper for Pan No Restart

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

Rated 4 out of 5 stars (3)
432 users

SmartWhois Launcher

This extension allows you to launch SmartWhois and perform a Whois query on the current URL. SmartWhois is a useful network information utility that allows you to look up all the available information about an IP address, hostname or domain...

Rated 3 out of 5 stars (6)
426 users

Tahoe Data Manager

Central access point to Cookies, Content Preferences, Permissions, Form Data

Rated 4 out of 5 stars (10)
311 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)
287 users

Hash Password Generator

Generates different passwords for each website using a choice of multiple algorithms.

Rated 3 out of 5 stars (4)
280 users

Advanced Dork:

Advanced Dork: gives quick access to Google's Advanced Operators directly from the context menu...

Rated 5 out of 5 stars (20)
189 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!

Not yet rated
169 users

Expiry Canary

An extension to warn about nearly-expired website SSL certificates.

Rated 5 out of 5 stars (4)
161 users

Link Status

Shows an icon on the status bar when the mouse cursor is over a link to a page you bookmarked or visited before. In Firefox 3.5 and later, the extension also offers an option to disable the visited link styling to reduce the risk to privacy.

Rated 4 out of 5 stars (35)
156 users

Fox Web Security

Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!

Rated 4 out of 5 stars (1)
142 users

Cache Offline Alert Restorer

Restores the alert when a website asks to store data for offline use.

Rated 5 out of 5 stars (1)
106 users

safeSERP

Prevents Google and Yandex from obfuscating and hijacking links in SERP.
Allows to copy/paste *direct* links from Google/Yandex search results instead of redirects.

Rated 5 out of 5 stars (2)
100 users

Netlux Adblocker No Restart

Block unwanted ads.

Not yet rated
96 users

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
91 users