Search Results for tag "security"

BetterPrivacy-signed Requires Restart Featured

Control a new, trickier kind of cookie, better known as an LSO or Flash cookie. The BetterPrivacy safeguard offers various ways to handle Flash-cookies created by webpages with the help of your Flash plug-in...

Rated 5 out of 5 stars (448)
478,903 users

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.

Rated 5 out of 5 stars (1,584)
2,164,843 users

Mason Requires Restart

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.

Rated 5 out of 5 stars (67)
4,921 users

QuickJava Requires Restart Featured

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.

Rated 5 out of 5 stars (208)
263,504 users

Ghostery Featured

Increase your browsing privacy, protection, and speed.

Rated 5 out of 5 stars (1,311)
1,408,913 users

Disable WebRTC

WebRTC leaks your actual IP addresses from behind your VPN, by default.

Rated 5 out of 5 stars (33)
47,040 users

Behind The *Asterisks* (EladKarako Mod) Requires Restart

Mouse-Over Shows Whats *Behind* The *Asterisks*
Video Review:

Rated 5 out of 5 stars (8)
85 users

HackBar Requires Restart

Simple security audit / Penetration test tool.

Rated 4 out of 5 stars (45)
33,767 users

Locationbar² Requires Restart

More than a textbox.

Rated 4 out of 5 stars (270)
8,865 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)
89,306 users

Groundspeed Requires Restart

Groundspeed is an add-on that allows security testers to manipulate the application user interface to eliminate annoying limitations and client-side controls that interfere with the web application penetration tests.

Rated 5 out of 5 stars (7)
1,652 users


Checks the websites you are visiting whether they are affected by the Heartbleed vulnerability.

Rated 5 out of 5 stars (7)
3,221 users

Disconnect Requires Restart Featured

Make the web faster, more private, and more secure.

Rated 4 out of 5 stars (197)
286,480 users

Masking Agent

Masking Agent protects you from showing platform information (OS and CPU) on the internet.
[This add-on is no longer supported by the developer.]

Rated 4 out of 5 stars (15)
2,635 users

View Cookies Requires Restart

It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.

Rated 4 out of 5 stars (45)
26,313 users

One Click Proxy IP

The easiest way ever to change IP and browse anonymously! Just activate it with one click and it's done, you're browsing the web with a random HTTP or Socks proxy list from several countries in the world. No ads. 100% free to prevent web censorship.

Rated 4 out of 5 stars (37)
27,743 users

refspoof Requires Restart

Easy spoofing of the URL referer (referrer) featuring a toolbar

Rated 4 out of 5 stars (21)
915 users

Website City + Country Info Requires Restart

Shows the city (!) and the countryflag of the website you are browsing to. See IP, provider, Oranisation name, GEO coordinates and further useful infos for security, fun and SEO reasons.

Rated 4 out of 5 stars (24)
2,247 users

Ad Hacker Requires Restart

Ad Hacker shows you which advertisers and publishers are following you around the Internet. Developers can see details about Javascripts, beacons, and other web bugs. Write your own rules for finding bugs in XML, or visit

Rated 4 out of 5 stars (12)
120 users

SSLPasswdWarning Requires Restart

A simple add-on to provide a modal dialog when the user clicks on a password input field that will transmit insecurely over a non-HTTPS connection. Designed to offer some protection against Man-In-The-Middle attacks like SSL Strip.

Rated 4 out of 5 stars (15)
11 users