Privacy & Security

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Saved Password Editor Requires Restart Featured

Adds the ability to create and edit entries in the password manager.

Rated 5 out of 5 stars (230)
87,132 users

User Agent Overrider

Override browser user agent string

Rated 5 out of 5 stars (56)
86,400 users

Privacy Badger

Protects your privacy by blocking spying ads and invisible trackers. Warning: This add-on is in alpha, so you may find some bugs! Read more: https://www.eff.org/privacybadger

Rated 4 out of 5 stars (112)
82,841 users

Random Agent Spoofer

Rotates complete browser profiles ( from real browsers / devices ) at a user defined time interval. It includes many extra privacy enhancing options

Rated 5 out of 5 stars (129)
82,632 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 (230)
81,485 users

AdBlocker Lite

block ads seamlessly on popular websites

Rated 4 out of 5 stars (30)
81,188 users

Click&Clean Requires Restart

The quick and easy way to delete your browsing history, erase all temporary internet files, remove downloaded files history, cookies, Flash LSO, typed URLs. Allows to delete private data when Firefox closes. Supported ext. tools like CCleaner.

Rated 5 out of 5 stars (99)
80,522 users

YouTube™ AdBlocker

YouTube™ AdBlock removes all sorts of advertisement from YouTube

Rated 4 out of 5 stars (11)
79,992 users

Ad-Aware Ad Block

Ad-Aware Ad Block improves your browser’s speed and protects your privacy by blocking ads and trackers. It also improves online security by blocking malicious URLs and establishing the most secure connection available.

Rated 4 out of 5 stars (7)
78,022 users

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

Rated 4 out of 5 stars (60)
77,468 users

RefControl Requires Restart

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

Rated 4 out of 5 stars (185)
75,121 users

YesScript Requires Restart

A JavaScript blacklist

Rated 4 out of 5 stars (210)
73,105 users

Multifox Featured

An extension that allows Firefox to connect to websites using different user names. Simultaneously.

*** Multifox 2 users: try the "Window Mode" (Addons - Multifox - Options) ***

Rated 4 out of 5 stars (99)
70,820 users

Google search link fix Featured

This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.

Rated 5 out of 5 stars (131)
67,641 users

Private Tab Featured

Adds private tabs.

Rated 5 out of 5 stars (221)
66,212 users

Stealthy

Does your country/organization block you from facebook, youtube or others?
Is the service you want unavailable in your country?
Stealthy is the solution for you.
Unlike other extensions we do the work of look for fast proxies for you.

Rated 3 out of 5 stars (67)
60,485 users

Autofill Forms Requires Restart

Autofill Forms enables you to fill out web forms with one click.

Rated 3 out of 5 stars (412)
59,699 users

Fasterfox Lite Requires Restart

Fasterfox Lite: Performance and network tweaks for Firefox, without the Enhanced Prefetching. This is a fork from the original "Fasterfox".

Rated 4 out of 5 stars (251)
59,521 users

Link Alert Requires Restart

Displays an icon in the tooltip or next to the cursor indicating the target of a link.

Rated 4 out of 5 stars (122)
58,744 users

Flash Control

Controls as and when to display the Flash player and the HTML5 player.

Rated 4 out of 5 stars (65)
58,210 users