To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
- All Add-ons
- Search Tools
- Any Firefox
- Firefox 46.0
- Firefox 45.0
- Firefox 44.0
- Firefox 43.0
- Firefox 30.0
- Firefox 27.0
- Firefox 26.0
- Firefox 19.0
- Firefox 3.6
242 matching results
Search Results for tag "security"
Click to Play per-element No Restart
Restore "Click to Play" ability of per-element for Firefox 36 and above.
This extension can simplify the rule to just specify the URI and Content type and can enable/disable each rule separately.
What's more, it can customize the web pages by user scripts which is similar to Grease Monkey.
NoScript Security Suite Featured
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Simple and secure password management. Login automatically, never forget another password, stay in control of your passwords and improve their security. Powered by the world-renowned KeePass Password Safe.
Privacy Settings No Restart Featured
Alter Firefox's built-in privacy settings easily with a toolbar panel.
Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...
SSleuth No Restart
How strong is your HTTPS connection? SSleuth ranks an established SSL/TLS connection and gives a brief summary of the cipher suite, certificate and other SSL/TLS parameters.
DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!
Mouse-Over Shows Whats *Behind* The *Asterisks*
Video Review: http://www.youtube.com/watch?v=hifCmVpBflU
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.
Set cookie permissions for the site you are viewing.
Ghostery No Restart Featured
Enjoy a faster, safer and cleaner browsing experience.
The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...
Disable WebRTC No Restart
WebRTC leaks your actual IP addresses from behind your VPN, by default.
CS Lite allows you to set the permission of the cookie every domain from toolbar.
HTTPS Everywhere Featured
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Tamper Data Featured
Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...
More than a textbox.
Piigeon checks whether Web sites protect your passwords and other personal information as you browse the Web. Piigeon indicates this information to you as an icon so that you can decide whether you would like to use a site on your current network.