Best Firefox VPN Extensions 2021

Paula Novo

Paula Novo Last updated: November 22, 2021

Best Firefox VPN Extensions 2021

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While it’s technically a private browser, Firefox is hardly different from Google Chrome when it comes to online privacy. In most cases, web browsers that are seemingly free to use still track user activity and package it into data bundles for advertisers to capitalize on. Because of this, we recommend using a VPN for guaranteed privacy. If you’re not getting a piece of that marketing pie, we see no reason to let it go unchecked.

The best VPN add-on for Firefox will hide your IP address, unblock geo-restricted content, and prevent your ISP from throttling your internet speeds. There are hundreds of free and cheap VPNs available in the Firefox Browser Add-Ons store. However, like web browsers, be wary of things that are free. We sifted through options to bring you the five Best Firefox VPN Extensions of 2021. Find the VPN that’s right for you and your browsing needs.

Top 5 VPNs for Firefox

1Private Internet Access Private Internet Access
#1 Firefox VPN for users set on privacy and security while browsing the web Read More
2NordVPN NordVPN
Feature-rich VPN with a lightweight browser extension Read More
3Surfshark Surfshark
VPN solution with unlimited connections and a Firefox extension that rivals top competitors Read More
4IPVanish IPVanish
Affordable VPN with trustworthy privacy and security features Read More
5Hotspot Shield Hotspot Shield
Freemium VPN with a dedicated Firefox extension for safe mobile and desktop browsing Read More

1. Private Internet Access

Private Internet Access
Availabile On:

Long-standing provider with robust security features

Visit Private Internet Access
Lowest Price: 2.08/mo.
Avg.DL Speed: 111 Mbps
Logging: No
Countries: 78


  • Affordable premium subscriptions
  • Up to 10 simultaneous connections
  • Secure & customizable encryption


  • Room for interface improvements
  • Limited advanced features
  • Lacking recent no-logs policy audit

Known for its impressive server network and fast connection speeds, Private Internet Access (PIA) is an established VPN making improvements every day to its service. PIA earns itself the #1 spot on our list of the top 5 Firefox VPNs thanks to its user-friendly proxy Firefox extension and US servers that make for fast connection speeds.

PIA server locations list in US

Moreover, PIA incorporates security measures like WebRTC leak prevention, Squid HTTPS, and URL whitelists for additional protection while online. Users can also unblock geo-restricted content on websites like Netflix and BBC iPlayer with the PIA Firefox extension. For the best streaming and browsing experience, PIA even gives users the ability to sort gateways by latency to avoid slow load times. Wherever you go, you can rest assured PIA has your back.

For more in-depth information, read our full Private Internet Access review.

2. NordVPN

Availabile On:

Feature-rich VPN with strong privacy practices

Visit NordVPN
Lowest Price: 3.71/mo.
Avg.DL Speed: 257 Mbps
Logging: No
Countries: 60


  • Sleek app that's easy to use
  • Vast array of security features
  • Fast download speeds


  • Expensive short-term plan
  • Does not accept PayPal
  • Basic browser extensions

Taking the second spot, NordVPN is undeniably one of the best VPNs for Firefox thanks to its lightweight browser extension that doesn’t slow down connection speeds and is very easy to use. Users also enjoy NordVPN’s massive 5,500+ server network worldwide, which uses military-grade AES-256 encryption and prides itself on a verified no-logs policy.

NordVPN’s extension is easy to add to your Firefox browser and has the same clean interface as its Chrome extension, too.

screenshot of NordVPN's Firefox extension

NordVPN’s Firefox add-on also includes a built-in ad-blocker as well as a WebRTC leak blocker that protects you from security breaches while in the Firefox browser. Users should note, though, that this add-on is more of a proxy than a fully functioning VPN app and does not protect your internet traffic outside the browser. For this, you’ll want to activate the NordVPN app. On its cheapest 3-year plan, NordVPN is an excellent choice for users with a Firefox browser.

For more in-depth information, read our NordVPN Review.

3. Surfshark

Availabile On:

Emerging VPN with streaming & P2P support

Visit Surfshark
Lowest Price: 2.49/mo.
Avg.DL Speed: 214 Mbps
Logging: No
Countries: 65


  • Free 7-day trial available
  • Unblocks 30+ Netflix libraries
  • Unlimited device connections


  • Limited P2P servers with poor speeds
  • No IPv6 support can lead to data leaks
  • Pricey 1-month subscription

Relatively young, Surfshark quickly made a name for itself thanks to its growing network and versatile service. Verified by independent auditor Cure53, Surfshark offers a dedicated Firefox extension that rivals older competitors. Surfshark’s Firefox add-on comes with the same capabilities as its main VPN app, including impressive speeds and the ability to bypass geoblocks. It also comes with an anti-malware tool that blocks ads and phishing attacks.

In addition, Surfshark is great for streaming international content from websites like Netflix, Disney+, and Hulu, as well as defeating censorship firewalls. According to Surfshark, its VPN service can successfully unblock 30+ Netflix libraries around the world – the most popular seen below.

icons of Netflix libraries Surfshark unblocks

Users that need a Firefox VPN extension will also like Surfshark for its unlimited connections, adding protection to as many devices as you’d like. If you’re still on the fence, take advantage of Surfshark’s 30-day money-back guarantee on any of their three plans and test it out first. You might just surprise yourself.

For more in-depth information, read our Surfshark Review.

4. IPVanish

Availabile On:

A fast VPN with robust security features

Visit IPVanish
Lowest Price: 2.92/mo.
Avg.DL Speed: 145 Mbps
Logging: No
Countries: 52


  • Supports torrenting & P2P
  • Zero data leaks detected
  • Unlimited device connections


  • Cluttered interface
  • Under 5 Eyes surveillance
  • Doesn’t work in China

IPVanish is another excellent VPN for Firefox that’s both reliable and affordable. It doesn’t have a dedicated Firefox browser extension, however, its desktop and mobile apps more than cover you as far as privacy and security are concerned. In fact, IPVanish provides dozens of setup guides to help you download the right app version for your device or operating system.

IPVanish features list

Supporting torrenting and streaming across a network of 1,600+ servers, IPVanish has both tight security and blazing fast speeds. Even more, IPVanish gives clients the ability to configure settings including OpenVPN scrambling, port selection, and split tunneling, so users always feel safe while browsing on Firefox.

The one catch for IPVanish might be its information-rich app that’s better suited for advanced users. But is that really a drawback? We think not. IPVanish also offers up to 10 simultaneous connections and promotes a strong no-logs policy, which is essential for heavy users. If you’re interested in getting your hands on this service, take advantage of IPVanish’s risk-free 30-day money-back guarantee today.

For more in-depth information, read our IPVanish Review.

5. Hotspot Shield

Hotspot Shield
Availabile On:

Ultra-fast VPN great for streaming

Visit Hotspot Shield
Lowest Price: 7.99/mo.
Avg.DL Speed: 102 Mbps
Logging: No
Countries: 80+


  • Unblocks multiple Netflix libraries
  • Free trial available for premium version
  • Large server network


  • Expensive premium version
  • Limited free tier
  • Based in the US (5 Eyes jurisdiction)

While we rarely recommend using a free VPN if you can help it, Hotspot Shield is one provider we see value in. Hotspot Shield secures a spot on the list of top 5 Firefox VPNs for a few key reasons. Spanning 82 countries, Hotspot Shield produces some of the fastest connection speeds on the market thanks to its proprietary encryption protocol, Catapult Hydra. This makes activities like streaming and torrenting noticeably faster for its customers, which users can enjoy on all major devices and platforms.

Hotspot Shield device list

Users have the option between Hotspot Shield’s free and paid Firefox extensions. However, most users find the free Firefox add-on to be more than sufficient. It comes with an ad-blocker, cookies blocker, malware blocker, and unlimited bandwidth so your browsing is never interrupted. The one downside of this free version is that you don’t get to choose your server unless you upgrade your plan. Overall, Hotspot Shield still packs a lot into its simple Firefox extension.

For more in-depth information, read our Hotspot Shield Review.

VPN FAQs for Firefox

1. How do I turn on my Firefox VPN?

You can turn your Firefox VPN on within your browser by signing into your Firefox account, navigating to your browser settings, and toggling your VPN to “Running” or “On.”

2. How do I use a VPN on Mozilla Firefox?

Similar to Microsoft Edge or Google Chrome, Mozilla Firefox allows both VPN browser extensions and VPN apps to be used on its program. Once your VPN of choice is set up in Firefox, all you need to do is make sure it’s turned on or running in the background. If that is done, you can start browsing the web with confidence knowing your data is encrypted.

3. Can I use a free VPN with Firefox?

Yes. There are hundreds of free or cheap VPNs for Firefox to choose from in the Firefox Browser Add-Ons store. However, like most things, be wary of VPNs that are free. More times than not, free VPNs don’t actually encrypt data at all, expose users via DNS, WebRTC, or IP leaks, and cause greater speed throttling than even your ISP would enforce.

If you want to avoid these potential downsides, Mozilla itself offers a Firefox VPN for just $4.99/mo. that can be used on up to 5 devices, has zero bandwidth restrictions, runs device-level encryption, and operates 280+ servers in over 30 countries.

4. How do I select the right VPN for Firefox?

When shopping for a VPN service, it’s important to look for a VPN that will hide your IP address while browsing and provide a legal workaround for accessing geo-restricted content from around the world. Additionally, you want to ensure that the VPN you use does not significantly slow down your internet speeds. Check out our top recommendations for the best VPNs for Firefox in 2021 above.

5. What is a browser extension?

A browser extension is an add-on service for your web browser that routes your browser traffic through a particular VPN server. This means that rather than using the internet unprotected, your browsing history is encrypted and your real-time location and IP address are hidden from others. 

Depending on which VPN extension you go with, your data may be subject to tracking anyway, so it’s a good idea to check where your VPN’s servers are physically located and what laws that country places on user data before downloading the software.

6. When do I use a browser add-on instead of a full VPN?

Generally speaking, both VPN browser extensions and full VPN apps serve the same purpose: encrypt individual data for added protection and security while using the internet. While a full VPN app is more robust than a browser extension, a simple add-on VPN is enough for users who want basic anonymity online without paying for privacy. VPN browser extensions are usually free or cheaper than VPN apps and are easier to install and use.

You can download a browser VPN add-on (i.e. extension) from your browser’s application storefront, depending on which web browser you use. Simply search for built-in VPN options in the Firefox Browser Add-Ons store, and select the VPN that best suits your browsing needs.