Security & Privacy

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Decentraleyes Featured

Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

Rated 5 out of 5 stars (117)
78,755 users

AdBlocker Ultimate

Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!

Rated 5 out of 5 stars (1,588)
407,264 users

Ageless for YouTube Compatible with Firefox 57+

Watch age restricted YouTube videos without signing in.

Rated 5 out of 5 stars (53)
11,654 users

Toggle Mixed Active Content

An icon that toggles the preference of blocking mixed active content.
Preference Name: security.mixed_content.block_active_content

Rated 5 out of 5 stars (12)
4,561 users

IP Geolocator Compatible with Firefox 57+

Shows detailed information about your IP and location.

Rated 5 out of 5 stars (11)
636 users

Porn Blocker

Blocks access to websites with adult content. The easiest way to protect your children and your family against porn.

Rated 5 out of 5 stars (57)
6,278 users

Parental Control: Porn Blocker

Parental control app that denies access to porn sites. It uses a semantic parser that scans and blocks all kind of adult content.

Rated 5 out of 5 stars (57)
3,559 users

Remote XUL Manager

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Rated 5 out of 5 stars (37)
81,744 users

Hoxx VPN Proxy

Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.

Rated 5 out of 5 stars (2,008)
182,858 users

uBlock Origin Featured

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (1,503)
3,919,238 users

Simple Popup Blocker

Simply toggle between three different popup blocking modes: allow all, allow requested or block all. Now with tracking protection.

Rated 5 out of 5 stars (25)
19,657 users

Content Farm Blocker Compatible with Firefox 57+

Preventing to open content farm by mistake

Rated 5 out of 5 stars (8)
1,007 users

Bluhell Firewall Featured

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (359)
90,491 users

I don't care about cookies

Get rid of annoying cookie warnings from almost all 'infected' websites!

Rated 5 out of 5 stars (122)
65,473 users

Native AdBlocker

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (7)
484 users

YouTube no Buffer (no autoplay) Compatible with Firefox 57+

Prevents YouTube HTML5 and Flash players from auto-buffering (auto-playing) videos

Rated 5 out of 5 stars (18)
2,287 users

AdStopEnforcer Compatible with Firefox 57+

Prevent boring messages like "disable your ad-blocker and refresh page to continue"

Rated 5 out of 5 stars (17)
3,184 users

Pan

Block ads and manage proxy.

Rated 4 out of 5 stars (79)
5,427 users

Save / Load Prefs

Load preferences from a file into Firefox. Useful for mobile devices that don't allow access to the Firefox profile directory.

Rated 5 out of 5 stars (6)
232 users

AdBlocker for Gmail™ Compatible with Firefox 57+

Removes all annoying Ads and Banners from Gmail

Rated 5 out of 5 stars (11)
18,658 users