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 (143)
70,068 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 (1,964)
359,417 users

Ageless for YouTube Compatible with Firefox 57+

Watch age restricted YouTube videos without signing in.

Rated 5 out of 5 stars (58)
9,927 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 (13)
3,516 users

Content Farm Blocker Compatible with Firefox 57+

Preventing to open content farm by mistake

Rated 5 out of 5 stars (12)
1,116 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)
85,481 users

uBlock Origin Featured

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

Rated 5 out of 5 stars (1,947)
3,816,521 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 (2,662)
188,008 users

Cookie AutoDelete Compatible with Firefox 57+

Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs (Firefox 53+).

Rated 5 out of 5 stars (27)
2,467 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 (61)
2,420 users

I don't care about cookies

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

Rated 5 out of 5 stars (151)
58,929 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 (417)
71,602 users

Native AdBlocker

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (7)
362 users

Don't track me Google Compatible with Firefox 57+

Removes the annoying link-conversion at Google Search / maps / ...

Rated 5 out of 5 stars (16)
4,422 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 (23)
2,319 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 (72)
5,918 users

Pan

Block ads and manage proxy.

Rated 4 out of 5 stars (80)
4,408 users

Ignore X-Frame-Options

Allows all sites to be loaded in iframes, despite X-Frame-Options header settings.

Rated 5 out of 5 stars (17)
2,583 users

Extension source viewer Compatible with Firefox 57+

View source code of Firefox addons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere.

Rated 5 out of 5 stars (8)
516 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)
177 users