Privacy and Security

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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 (3)
134 users

Native AdBlocker No Restart

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (4)
362 users

Automatic Export

exports by an intervall or after pressing the button selected calendars in a defined folder in two modes - normal and backup...

On my homepage is the current version.
Here on this site it takes a long time after i publish a new version.

Rated 4 out of 5 stars (45)
3,583 users

Trueblock Plus

Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.

Rated 4 out of 5 stars (45)
1,473 users

Enigmail Featured

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Rated 4 out of 5 stars (188)
156,038 users

GProxy Tool

GProxy lets you set and clear GPass local proxy in Firefox and Thunderbird, and do more.

Rated 4 out of 5 stars (8)
4,582 users

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...

Rated 4 out of 5 stars (9)
104 users

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 (94)
6,609 users

Show Password On Input

Gives an option to show the master password on input

Rated 4 out of 5 stars (11)
1,069 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)
426 users

MailSentry IronPort Spam Reporter

Report spam and ham to IronPort - originally written for our MailSentry hosted IronPort customers, it can be used by anyone who has their email filtered by an IronPort appliance.

Rated 5 out of 5 stars (2)
559 users

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)
1,247 users

InfoNotary Configurator for Mozilla

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
10,766 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)
424 users

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 (4)
348 users

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 (32)
1,472 users

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.

Rated 5 out of 5 stars (3)
29 users

Paranoia

Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)

Rated 4 out of 5 stars (6)
953 users

GuifiProxy

Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement

Rated 4 out of 5 stars (23)
3,362 users

CookieSafe - Control cookie permissions

Control cookie permissions.

Rated 4 out of 5 stars (22)
1,492 users