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Stay Private and Protected with the Best Firefox Security Extensions

Keep watch over your security and privacy with the Firefox extensions designed to guard your data.

Apps in this Guide

With Mozilla's focus on Firefox privacy and keeping user data secure, you'd expect to find lots of Firefox security extensions. Privacy and security extensions range from one that can block trackersmore

With Mozilla's focus on Firefox privacy and keeping user data secure, you'd expect to find lots of Firefox security extensions. Privacy and security extensions range from one that can block trackers and help to keep your traffic secure to password managers.

For what's new in Firefox, check out our updated browser reviews for Windows, Mac, and Android. And to discover the best Firefox add-ons, explore our new guides on productivity; shopping; themes; and how to add, disable, and remove extensions.

Here are a few of the best security add-ons for Firefox.

Best Firefox Privacy and Security Extensions

Firefox privacy extensions range from easy-to-use tracker blockers to sophisticated add-ons that can block remote server scripts.

Privacy Badger

Privacy Badger

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Privacy Badger from the Electronic Frontier Foundation, or EFF, watches for third-party trackers that monitor your browsing across websites and blocks their ability to track your activity without your permission. Privacy Badger works much like Ghostery or Adblock Plus but is intended to be simpler to use.

Ghostery

Ghostery

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Another tracker-blocker, the Ghostery extension shows trackers used on a webpage. The extension gives you quite a bit of control over what you see and what you want blocked.

HTTPS Everywhere

HTTPS Everywhere

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Another extension from the EFF, HTTPS Everywhere works to encrypt your web communications by automatically redirecting your traffic to the HTTPS version of a website if the encrypted version is available.


Decentraleyes

Decentraleyes

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A complement to tracker-blockers, Decentraleyes keeps an eye on content delivery networks, or CDNs, to guard your privacy.


NoScript Security Suite

NoScript Security Suite

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NoScript lets you block execution of remote server scripts such as JavaScript that you don't want running in your local browser. You can, of course, enable plugins for sites you trust.

Disconnect

Disconnect

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Like Privacy Badger, Disconnect identifies and blocks trackers. In fact, Firefox uses for its own privacy settings a list provided by Disconnect to identify and block trackers. The extension is easy to set up and monitor.

Best Firefox Password Managers

The built-in Firefox password manager can save passwords and other login information to help autofill forms. If want something sturdier, a few Firefox password manager add-ons are up to the task.

LastPass

LastPass

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The LastPass password manager lets you can generate, save, and fill in passwords in Firefox for free. With a $2 monthly subscription, you can share passwords with family members and use multifactor authentication.


Bitwarden

Bitwarden

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Bitwarden is a free, open-source password manager that lets you create, store, and sync passwords across the popular browsers and platforms. If you already use another manager, you can import your data from LastPass, 1Password, and Chrome for example.