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:
Conspiracy Requires Restart
Shows flag/country of involved Certification Authorities (CAs) for secured pages.
CallingID Link Advisor Requires Restart
CallingID Link Advisor verifies the links you see in Firefox and Thunderbird are safe before you follow them. When the mouse is placed over any link a risk assessment and the full details of the site owner are displayed, helping you evaluate the...
Channel Guard Requires Restart
Channelguard disables plugins and protocol handlers to ensure maximum security against side-channel attack.
Advanced Dork: Requires Restart
Advanced Dork: gives quick access to Google's Advanced Operators directly from the context menu...
AdRemind.Me Requires Restart
Want to keep your favourite Web sites alive even when you're using Adblock Plus? AdRemind.Me helps you to supporting your favourite Web sites in deactivating periodically Adblock Plus ad filters only on these sites for 20 seconds.
View Your Certificates Email Address
Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager
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.
Saved Password Editor Requires Restart
Adds the ability to create and edit entries in the password manager.
InfoNotary Configurator for Mozilla Requires Restart
Configures Mozilla for work with certificates issued by InfoNotary Plc.
XingClean
Der Spam-Filter für Xing! Entfernt störenden Spam aus der Xing-Timeline und den Gruppen.
CS Lite Mod Requires Restart
CS Lite allows you to set the permission of the cookie every domain from toolbar.
Disable About Something Requires Restart
Provides ability to disable "about:*" pages by the configuration.
Key Manager Requires Restart
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
Disable about:config Requires Restart
Disable about:config feature of Firefox and Thunderbird.
To create your own collections, you must have a Mozilla Add-ons account.