Privacy & Security
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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).
Permanently hides the Ads panel on the right side of New Yahoo! Mail, the 'Sponsored' email at the Top, and ads on the Left to give you a full-width Premium email experience for free! The other option, of course is to pay $50 a year to Yahoo! Inc. :)
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.
Hide My IP is number one tool for hiding your IP and unblocking any web site!
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
TinyURL Generator Requires Restart
An extension to silently generate a TinyURL for your current page at the click of a button. Also shows you where TinyURLs on the web will take you.
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
Saved Password Editor Requires Restart
Adds the ability to create and edit entries in the password manager.
Keyword Search Featured
Search in the address bar without changing your search engine.
Watch age restricted YouTube videos without signing in.
Restore "Click to Play" ability of per-element for Firefox 36 and above.
bitwarden is a secure and free password manager for all of your devices.
Policeman gives you precise control over what web requests are allowed. Create rules based on domain name and type of resource being requested. It can also be used to improve privacy or block cross-site scripts.
QuickJava Requires Restart Featured
PrefBar Requires Restart
NoScript Security Suite Requires Restart 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.