Privacy and Security

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pass-manager

Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)

Rated 3 out of 5 stars (1)
48 users

Native AdBlocker No Restart

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (4)
343 users

Blend In

Blends in 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 being used the most in the world. Thunderbird can also be blended in as Firefox.

Rated 4 out of 5 stars (10)
1,089 users

Change Referer Button

Button in the toolbar/status bar to change referer value.

Rated 5 out of 5 stars (20)
2,414 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)
3,483 users

Unsubscribe from Mailing List

Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.

Rated 4 out of 5 stars (13)
1,270 users

Too Many Recipients

Contourne la limite du nombre de destinataires/e-mail des serveurs SMTP.
Gets around the limit on the number of recipients/e-mail of SMTP servers.
Evita la limitación de número de destinatarios/e-mail del servidor SMTP.

Rated 3 out of 5 stars (16)
1,720 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)
1,481 users

CryptoData

Easily and quickly to encrypt / decrypt:
Private messages via e-mail, blogs, social networks, forums, websites, images, etc
Support: Firefox, Thunderbird and SeaMonkey

New feature: CryptoPad (crypto-notepad)

Rated 5 out of 5 stars (6)
1,593 users

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 (270)
133,738 users

Encrypt if possible

Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.

Rated 5 out of 5 stars (14)
1,893 users

TorBirdy

This extension configures Thunderbird to make connections over the Tor anonymity network.

Rated 5 out of 5 stars (6)
2,857 users

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (55)
15,758 users

Website Blocker

All the bugs have been fixed!
Everyone needs this add-on!
Block websites you don't want the browser to get into.
Block by a whole domain name or a specific address.
Block until further notice or until a certain date.

Rated 2 out of 5 stars (8)
9,591 users

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 SSO change (multi-domain pw) and Backup + Restore.

Rated 5 out of 5 stars (48)
6,509 users

Show Password On Input

Gives an option to show the master password on input

Rated 4 out of 5 stars (11)
1,068 users

Silent Block No Restart

Minimum and fast URL blocker.

Rated 5 out of 5 stars (16)
8,571 users

DKIM Verifier

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (12)
3,571 users

Password Exporter No Restart

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Rated 4 out of 5 stars (336)
195,843 users

KeePass Helper

Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.

Rated 4 out of 5 stars (34)
4,563 users