To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
ClosePrivacy & Security
Sort by:
RequestPolicy v0.5 Legacy
Requires Restart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
fairBlock
Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.
IsAdmin
Requires Restart
Shows whether the application is running with admin privileges, using an icon in the status bar; useful if logged in as an administrator and you use privilege limitation tools such as DropMyRights, RunAs or Windows User Account Control.
Bitdefender QuickScan
Requires Restart
The quickest way to find out if your computer is infected!
Bitdefender QuickScan is a very fast antivirus scanner, able to determine in a matter of seconds if a system is infected with malware.
More on http://quickscan.bitdefender.com/faq
WebPG for Mozilla
Requires Restart
An extension which provides GnuPG/GPG/PGP related functions to Moizilla Firefox, Thunderbird and Seamonkey
Bork Bork Bork!
Requires Restart
The Swedish Chef travesty filter and URL blocker. View web pages or mail as spoken by the Swedish Chef like this...
"Zee Svedeesh Cheff trefesty feelter und URL blucker. Feeoo veb peges oor meeel es spukee by zee Svedeesh Cheff leeke-a thees."
Controle de Scripts
Requires Restart
Controle de Scripts is an extension that allows you to control what JavaScripts do on your browser.
View Dependencies
Requires Restart
View Dependencies adds a tab to the Page Info window, in which it lists all the files which were loaded to show the current page.
CipherFox
Requires Restart
Displays the current SSL/TLS cipher, protocol and certificate chain in the Add-on bar and Site ID dialog
Y U no validate
Requires Restart
In the "Add Security Exception" dialog makes "Permanently store this exception" checkbox unchecked by default.
Previously known as XULernia. New name seems to be less misleading.
InfoNotary Configurator for Mozilla
Requires Restart
Configures Mozilla for work with certificates issued by InfoNotary Plc.
Hash Password Generator
Requires Restart
Generates different passwords for each website using a choice of multiple algorithms.
To create your own collections, you must have a Mozilla Add-ons account.