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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.

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With Mozilla's focus on Firefox privacy and keeping user data secure, you'd expect to find lots of security extensions for the Firefox web browser. Privacy and security extensions for Firefox rangemore

With Mozilla's focus on Firefox privacy and keeping user data secure, you'd expect to find lots of security extensions for the Firefox web browser. Privacy and security extensions for Firefox range from ones that can block trackers to those that can throttle how much of your data Facebook can track.

Firefox Add-Ons

With both the desktop and mobile versions of Firefox, you can download and add extensions and themes to customize the browser to match your needs and style. You can add themes and add-ons to monitor your privacy, change the look of the browser, track deals on shopping sites, keep to-do lists, and download files, for example.

Firefox's Built-In Tools Can Help Keep You Secure

Firefox out of the box comes with a handy collection of security tools. Through settings, you can have Firefox block trackers, manage cookies, and wipe private data when you quit the browser. You can use Private Browsing to prevent Firefox from saving information about sites and pages you've visited. And you can enable Tracking Protection to identify and block trackers across sites. If you want to go further, however, you can use add-ons that can give you greater control over trackers and direct you to the encrypted versions of websites.

Firefox Can Help with Basic Password Management

Firefox also offers a simple password manager that can save the usernames and passwords you use for websites and other online services. To take an extra security step, you can set a master password to unlock Firefox's password manager before it fills in your personal data. If you want to manage passwords and other log-in information across multiple devices and services, a Firefox password-manager extension would be up to the task.

(For Firefox reviews and guides, check out our 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.)

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.

Facebook Container

Facebook Container

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From Mozilla, the Facebook Container extension lets you keep your web activity separate from your Facebook activity and prevent the social service from tracking your non-Facebook browsing. Mozilla said the Facebook extension will open a separate blue-colored container tab that is designed to separate your Facebook use from use of other websites. This extension doesn't keep Facebook from accessing everything you do in the service; it limits the access Facebook has to your non-Facebook activities.

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. It's a bit confusing, so check out these Reddit posts for more on how the extension guards 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.