Privacy and Security
Adblock Plus 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).
Saved Password Editor Requires Restart
Adds the ability to create and edit entries in the password manager.
Identity Chooser Requires Restart
Identity Chooser helps you to always use the correct identity when composing a new email.
Block ads and manage proxy.
Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.
**This addon has been discontinued**
Mail Merge Requires Restart Featured
Mass Mail and Personal Mail
Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.
QuickPasswords Requires Restart
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.
TrayHotKey Requires Restart
Password Tags Requires Restart
Adds metadata and sortable tags to the password manager.
한국 웹의 광고를 효율적으로 차단합니다.
Minimum and fast URL blocker.
S/MIME Security for Multiple Identities Requires Restart
Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3
POW -- Plain Old Webserver Requires Restart
Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.
Encrypt if possible Requires Restart
Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.
Secure Addressing Requires Restart
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.
Confirm-Address Requires Restart
Confirm E-mail address before sending mail
Change Referer Button Requires Restart
Button in the toolbar/status bar to change referer value.
Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246