Privacy & Security

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AccessURL Compatible with Firefox 57+

Share access to websites without giving away your username and password. Share access with an Access URL instead.

Rated 4 out of 5 stars (66)
8,717 users

Acryptork Requires Restart

Acryptork,privacy factor for orkut

only for orkut users.

This is a data encryption program , which is a boon to those who wish to protect the privacy of some selected scraps , without shutting down their scrapbooks to everyone.

This addon is devel...

Rated 5 out of 5 stars (7)
1 user

Active Whois & Flags extension Compatible with Firefox 57+

Displays the flags, IP address and Whois data of websites. It requires a Windows system with installed Active Whois 5.2++.
Active Whois is an easy-to-use network tool for the retrieving of all information such as country, email and postal address.

Not yet rated
40 users

Active Whois plugin for Firefox Requires Restart

Starting Active Whois to get details about any Web site owner and its host server...

Rated 2 out of 5 stars (12)
263 users

Ad blocker Requires Restart

Note from Mozilla: This add-on has been discontinued. Try Updated Ad Blocker instead.

It blocks ads on the web pages you visit.

Rated 4 out of 5 stars (100)
1,910 users

Ad Blocker for Facebook™ Compatible with Firefox 57+

Remove unwanted contents on the Facebook website, including sponsored posts and recommended pages/groups. Supports both desktop and mobile Firefox.

Rated 4 out of 5 stars (9)
2,485 users

Ad Blockerr

Block unwanted Popups

Not yet rated
247 users

Ad Blocking FiltersetP Requires Restart

This is FiltersetP without the need for the AdBlock extension.

Rated 3 out of 5 stars (6)
1,631 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 http://rules.adhacker.com/

Rated 4 out of 5 stars (12)
86 users

Ad Killer Requires Restart

An easy-to-use tool to permanently ban specific annoying ads from your web experience. No typing required - just point and click.

Rated 3 out of 5 stars (74)
27,991 users

Ad Killer Compatible with Firefox 57+

Ad Killer is the cross platform extension to block banner ads in websites like YouTube, ESPN, MSN and many more.

Rated 1 out of 5 stars (1)
130 users

Ad Limiter

Search spam blocker. Tells you about the company behind each search result. Limits search ads to one ad per page.

New! - now available on Android

Rated 1 out of 5 stars (1)
1,793 users

Ad-Blocker

Ad Blocker lets you block all ads, tracking & malware from the web world. It is an effective solution to browse the web without offensive and annoying ads you hate to see.

Rated 4 out of 5 stars (99)
49,382 users

Ad-blocker for Gmail

Hide ads in Gmail, and more cool stuff, simply with CSS.

Rated 4 out of 5 stars (15)
8,445 users

Adaptive Referer Remover Requires Restart

Adaptive Referer Remover is a firefox extension that prevent leaking specified urls by HTTP Referer header. Blocking urls can be specified by regular expressions, like "^http://127.0.0.1" or "^http://localhost&quo...

Rated 3 out of 5 stars (8)
50 users

adaware ad block

By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.

Rated 4 out of 5 stars (43)
85,906 users

AdBlock for Firefox Compatible with Firefox 57+

The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.

Rated 4 out of 5 stars (71)
269,797 users

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).

Rated 5 out of 5 stars (5,101)
17,725,537 users

AdBlocker for Facebook™ Compatible with Firefox 57+

Block Ads Seamlessly on Facebook.com

Rated 3 out of 5 stars (22)
31,956 users

AdBlocker for Gmail™ Compatible with Firefox 57+

Removes all annoying Ads and Banners from Gmail

Rated 5 out of 5 stars (9)
18,613 users