Privacy & Security

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Toggle JS

A simple toolbar button to quickly toggle javascript between enabled or disabled.
A green shield is shown when javascript is enabled and a red shield is shown when it is disabled

Rated 5 out of 5 stars (18)
9,112 users

Adguard AdBlocker

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

Rated 5 out of 5 stars (383)
232,166 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 (1,577)
1,744,611 users

Form History Control Requires Restart

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Rated 5 out of 5 stars (95)
18,355 users

KeeFox Requires Restart

Simple and secure password management. Login automatically, never forget another password, stay in control of your passwords and improve their security. Powered by the world-renowned KeePass Password Safe.

Rated 5 out of 5 stars (1,116)
50,099 users

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (33)
11,108 users

Privacy Settings Featured

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (64)
18,941 users

FlashDisable

Toolbar button that lets you disable and re-enable Flash with just one click.

Rated 5 out of 5 stars (50)
16,584 users

WorldIP - Geo Add-on with Security Features Requires Restart

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Rated 5 out of 5 stars (117)
21,552 users

uMatrix Featured

Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.

Rated 5 out of 5 stars (126)
35,368 users

Trusted Shops extension for Firefox Compatible with Firefox 57+

Find secure shops in your Google search: install the official Trusted Shops extension

Rated 5 out of 5 stars (56)
68,010 users

Password Tags Requires Restart

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (12)
1,453 users

Content Farm Blocker Compatible with Firefox 57+

Preventing to open content farm by mistake

Rated 5 out of 5 stars (12)
1,099 users

bitwarden - Free Password Manager Compatible with Firefox 57+

bitwarden is a secure and free password manager for all of your devices.

Rated 5 out of 5 stars (35)
1,845 users

Cookies Exterminator

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

Rated 5 out of 5 stars (12)
1,210 users

CanvasBlocker

Blocks the JS-API for modifying <canvas> to prevent Canvas-Fingerprinting.</canvas>

Rated 5 out of 5 stars (40)
17,740 users

SearchReset

This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page.

Rated 5 out of 5 stars (159)
302 users

Malware Search Requires Restart

Mainly for use with HijackThis logs, this plugin will search various malware related databases for selected (highlighted) text.

Rated 5 out of 5 stars (33)
2,808 users

gooreplacer

一个用于替换网页中Google Fonts/API/themes等的Firefox插件,让你快速打开引用这些资源的页面。需要说明的是,如果要想使用本插件,需要在本插件选项中开启重定向功能。具体可参考:https://github.com/jiacai2050/gooreplacer#install

Rated 5 out of 5 stars (9)
1,021 users

Clickjacking Reveal

This extension tries to warn you if it found clickjacking technique on the page you are viewing.

Rated 5 out of 5 stars (9)
1,556 users