Privacy and Security

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Silent Block

Minimum and fast URL blocker.

Rated 5 out of 5 stars (18)
6,728 users

Fox Web Security Requires Restart

Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!

Rated 5 out of 5 stars (27)
21,611 users

CS Lite Mod Requires Restart

CS Lite allows you to set the permission of the cookie every domain from toolbar.

Rated 5 out of 5 stars (45)
3,585 users

Google Privacy Requires Restart

Make some popular websites respect your privacy settings.
Please see the known issues below!

Rated 5 out of 5 stars (34)
25,608 users

RequestPolicy 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.

Rated 4 out of 5 stars (227)
80,988 users

Expiry Canary Requires Restart

An extension to warn about nearly-expired website SSL certificates.

This simple addon probably needs updating for the upcoming changes in Firefox; however, I'm afraid I don't have time to learn the new stuff. If you can maintain it, contact me!

Rated 5 out of 5 stars (5)
163 users

Fetch Text URL (fix version) Requires Restart

Open text URLs from the context menu.

Rated 5 out of 5 stars (5)
607 users

AutoProxy Requires Restart

Are you concerned about your privacy? Or, are you blocked from some websites by a firewall? And, are you arming yourself with a proxy? In that case, AutoProxy is designed for you! A tool to help you use your proxy automatically & efficiently.

Rated 4 out of 5 stars (418)
37,812 users

CryptoData Requires Restart

Easily and quickly to encrypt / decrypt:
Private messages via e-mail, blogs, social networks, forums, websites, images, etc
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (7)
1,625 users

PasswordMaker Requires Restart

One Password To Rule Them All!

Rated 4 out of 5 stars (55)
2,555 users

KeePass Helper Requires Restart

Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.

Rated 4 out of 5 stars (35)
4,947 users

AdNauseam

Fight back against advertising surveillance

Rated 4 out of 5 stars (24)
17,888 users

Cookies Exterminator

Auto delete cookies and localStorage objects as soon as they become unused

Rated 5 out of 5 stars (4)
1,073 users

Gmail Mail Sidebar

Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.

Rated 5 out of 5 stars (4)
6,450 users

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.

Rated 5 out of 5 stars (10)
564 users

Link Status Requires Restart

Shows an icon on the status bar when the mouse cursor is over a link to a page you bookmarked or visited before. In Firefox 3.5 and later, the extension also offers an option to disable the visited link styling to reduce the risk to privacy.

Rated 4 out of 5 stars (35)
88 users

RefControl Requires Restart

Control what gets sent as the HTTP Referer on a per-site basis.

Rated 4 out of 5 stars (188)
85,705 users

MM3 Proxy Switch Requires Restart

In the Firefox Browser (and other Mozilla programs) you can per default configure only the setting for one internet connection. With this Proxy Switch you can manage different configurations and simply switch over between these.

Rated 4 out of 5 stars (39)
5,209 users

Click-to-Play Manager

Manages the Click-to-Play domain whitelist.

Rated 4 out of 5 stars (11)
2,657 users

No Resource URI Leak

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

Rated 4 out of 5 stars (18)
5,975 users