Privacy and Security

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Secure Addressing

This add-on provides features to avoid sending emails to wrong addresses. Key features are a confirmation window of recipient's addresses upon sending, name and affiliation look up at mail composition and main windows, and safe auto completion.

Rated 4 out of 5 stars (2)
345 users
Updated June 26, 2014

Identity Chooser

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (75)
8,351 users
Updated June 23, 2014

Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

Rated 5 out of 5 stars (190)
630,184 users
Updated June 22, 2014

Mail Merge Featured

Mass Mail and Personal Mail

Rated 5 out of 5 stars (114)
41,682 users
Updated June 19, 2014

Element Hiding Helper for Pan No Restart

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

Rated 5 out of 5 stars (1)
134 users
Updated June 16, 2014

Pan No Restart

Block ads and manage proxy.

Rated 5 out of 5 stars (6)
435 users
Updated June 16, 2014

Blend In

Blends OS-related values in User-Agent HTTP request header & a number of JS properties, so that Firefox (Thunderbird) appears to sites visited as running on the OS used the most in the world. Since 18.0t17.0.2 Windows is blended by default as well.

Rated 5 out of 5 stars (4)
618 users
Updated June 11, 2014

Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,299)
18,672,986 users
Updated June 4, 2014

View Your Certificates Email Address

Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager

Rated 5 out of 5 stars (4)
345 users
Updated June 3, 2014

Bluhell Firewall No Restart

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 5 out of 5 stars (127)
121,628 users
Updated May 28, 2014

InfoNotary Configurator for Mozilla

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
9,002 users
Updated May 12, 2014

DKIM Verifier

Verifies the DKIM-Signature of an e-mail.

Rated 5 out of 5 stars (7)
948 users
Updated May 10, 2014

Correct Identity

Ever sent mail from the wrong email address because you forgot to select the correct identity in the compose window?

Rated 4 out of 5 stars (65)
6,656 users
Updated May 10, 2014

ShowIP

Show the IP address(es) of the current page in the status bar. It also allows querying custom information services by IP (right click) and hostname (left click), like whois, netcraft, etc. Additionally you can copy the IP address to the clipboard.

Rated 3 out of 5 stars (213)
84,074 users
Updated May 3, 2014

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (14)
8,714 users
Updated May 1, 2014

HabuL

Reports spam to the SpamCop, the FTC, FDA, SEC, ACMA and/or Knujon.com. It also allows you to put in your own custom addresses to report spam to such as your ISP or corporate abuse address.

Rated 4 out of 5 stars (26)
1,583 users
Updated April 30, 2014

Extensor No Restart

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.

Rated 5 out of 5 stars (4)
291 users
Updated April 25, 2014

QuickPasswords

Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.

Now also includes single sign on change!

Rated 5 out of 5 stars (33)
11,326 users
Updated April 25, 2014

PennyPost

This extension makes it very easy to generate and attach stamps to outgoing mail. It also automatically detects and verifies stamps on incoming emails. The MBound algorithm requires a 16MB fixed table to work, HashCash is more CPU intense.

Not yet rated
9 users
Updated March 13, 2014

Silent Block

Minimum and fast URL blocking by regular expressions.

Rated 5 out of 5 stars (15)
5,373 users
Updated March 11, 2014