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5 Best Mozilla Firefox VPN Add-ons That Actually Work in 2021

With over 300 VPNs to choose from, finding one that’s secure and has an add-on for Mozilla Firefox is tough. Because I needed to find one fast, I decided to look further into it and test a few VPNs to see which one is the best.

The VPN I was looking for needed to have an extensive server network, advanced security features, and a reasonable price. I wanted it to bypass geoblocks, give me access to region-exclusive shows, and keep me safe from ads and malware on the internet.

After testing 30+ VPNs, I can safely recommend ExpressVPN. It has 3,000 servers to unblock any streaming platform, and its advanced security features will keep your identity hidden. Besides, you can test it risk-free before you commit. It’s backed by a 30-day money-back guarantee, so you can ask for a refund if you don’t like it.

Get ExpressVPN Today!

Short on Time? Here Are the 5 Best VPNs for Mozilla Firefox in 2021

  1. ExpressVPN — Ultra-fast speeds to quickly access any website or streaming service.
  2. CyberGhost — 7,190 servers and advanced security features that hide your identity.
  3. Private Internet Access — Comes with a powerful ad blocker that keeps you safe on the internet.
  4. TunnelBear — Speed-optimized servers for a fast connection.
  5. hide.me — Strong leak protection to keep your identity anonymous.

Browse Safely With ExpressVPN Today!

Best VPNs for Mozilla Firefox — Full Analysis (Updated in 2021)

1. ExpressVPN — WebRTC Blocking Keeps You Anonymous Online

  • Superfast speeds to watch any show with zero lag
  • 3,000 servers to unblock geo-restricted websites
  • Integrated WebRTC blocker to keep your identity hidden
  • 5 simultaneous device connections
  • 30-day money-back guarantee
  • Can unblock: Netflix, Disney+, HBO Max, Hulu, BBC iPlayer, Vudu, and more
  • Compatible with: Windows, Mac, iOS, Android, Linux, routers, Apple TV, and more
ExpressVPN’s latest deal September 2021: Get 3 months completely free on your annual subscription with this current offer! It’s not for certain when this deal will end so it’s best to check the deals page to see if it’s still available.

ExpressVPN keeps you safe with its WebRTC blocker. WebRTC leaks can leave your IP address exposed to your ISP and authorities, and they can track your entire online activity. Thanks to its technology, ExpressVPN’s Mozilla Firefox add-on makes sure you’re anonymous at all times, and no one sees who you are or what you do. This way, you’re sure to be protected from threats at all times.

Screenshot of IP Leak test and ExpressVPN's Mozilla Firefox addon

ExpressVPN’s IP and DNS leak protection keeps you anonymous

Its extensive server network makes it incredibly easy to bypass any restricted website or firewall. I tested its servers in the US, UK, Netherlands, and Italy and unblocked every Netflix and Hulu library without any problems. It was just as easy to access social media platforms on my highly restrictive work network. You’ll have no problem finding a reliable server for your needs.

ExpressVPN has lightning-fast speeds that make streaming a smooth experience. During my tests on 10 of its servers, the speed never dropped under 50 Mbps. With such a fast connection, I could load any webpage in less than a second — streaming was bufferless. You won’t have to deal with a slow connection ever again.

One slight downside is the price — ExpressVPN is not the cheapest out there. However, you can take this excellent deal and save up to 49% on your subscription.

You can give it a test risk-free before you commit. If you don’t like it, you can ask for your money back within 30 days. I wanted to test its promise, so I reached out through its 24/7 live chat support and asked for a refund. The customer support rep only wanted to know why I was canceling and then approved my request. I had my money back in 3 days.

Get ExpressVPN Now!

2. CyberGhost – Advanced Encryption Built into its Mozilla Firefox Addon

  • Fast speeds for browsing and streaming
  • 7,190 servers in 91 countries to unblock geo-restricted content
  • Advanced encryption system to keep you protected online
  • 7 simultaneous device connections
  • 45-day money-back guarantee
  • Can unblock: Netflix, Disney+, HBO Max, Hulu, BBC iPlayer, Vudu, and more
  • Compatible with: Windows, Mac, iOS, Android, Linux, routers, Apple TV, and more
September 2021 Deal: CyberGhost is currently offering 83% off its most popular plan! Take advantage of this offer now and save more on your CyberGhost subscription.

CyberGhost has advanced IP leak protection, which allows you to freely browse the internet while staying anonymous. To test this feature, I connected to one of CyberGhost’s servers and ran an IP and DNS leak test. I noticed that my connection was secure, and no one could see my actual IP address and location. You’ll stay fully protected with this VPN.

Screenshot of IP and DNS test and CyberGhost Firefox addon UI

Your identity is completely hidden with CyberGhost

It comes with an extensive server network that has no problem unblocking most websites or streaming platforms. I tested its servers in Canada, Belgium, and the US, and I had no problems unblocking Hulu, Netflix, and Amazon Prime. It was just as easy to unblock country-specific websites that are usually geoblocked so you can stream content from anywhere.

This VPN’s only weakness is that it can’t bypass the Great Firewall of China. However, it does a fantastic job at keeping you safe and unblocking geo-restricted content from anywhere else in the world. You can also use its 83% off discount and save some money.

If you don’t want to commit just yet, you can try it out with its 45-day money-back guarantee. After using it for 45 days, I sent an email to its support and requested a cancellation. The agents approved my refund after 12 hours, and I had my money back in 7 days.

Get CyberGhost Now!

3. Private Internet Access — Large Server Network to Easily Unblock Your Favorite Websites

  • 29,650 servers in 70 countries to unblock the most popular websites
  • WebRTC blocking to keep you anonymous
  • Ad and tracker blocker for maximum privacy
  • 10 simultaneous device connections
  • 30-day money-back guarantee
  • Can unblock: Netflix, Disney+, HBO Max, Hulu, BBC iPlayer, Vudu, and more
  • Compatible with: Windows, Mac, iOS, Android, Linux, routers, Apple TV, and more
September 2021 Update: PIA doesn't usually have deals or discounts (it's already so affordable), but right now you can get a new subscription for a crazy 83% off!

It has a vast server network, with 29,650 servers around the world. This makes it incredibly easy to access geo-restricted content from anywhere. I tested its servers in the US, UK, and the Netherlands and quickly unblocked Netflix and Disney+.

Screenshot of Disney Plus player and Private Internet Access UI

You can bypass any geo-restrictions with PIA’s large server network

Private Internet Access has a strong WebRTC blocker, so your identity will remain hidden at all times. WebRTC leaks can occur anytime when using a VPN, and if it doesn’t have protection, you can get exposed in front of your ISP and authorities. I ran a few DNS and IP leak tests on its servers, and I didn’t notice anything unusual. Private Internet Access will keep your identity safe at all times.

The only problem with Private Internet Access is that it’s based in the US, which is the heart of the 5-Eyes Alliance. The good part is that its zero-logs policy doesn’t keep any information about you, so it wouldn’t have anything to share with the government. Remember to take advantage of its 83% discount when you start your subscription.

If you want to give it a test before you commit, use its 30-day money-back guarantee. When I decided to cancel my subscription, I opened a ticket through its website. After a few hours, I received an answer, and my request was approved. I had the money back in less than a week.

Get Private Internet Access Now!

4. TunnelBear — Speed-Optimized Servers for Fast Connections

  • Fast speeds to browse without interruptions
  • 2,600+ servers to connect to access geo-restricted content
  • 5 simultaneous device connections
  • 500 Mb of traffic to test it out
  • Can unblock: Netflix, Disney+, HBO Max, Hulu, Amazon Prime Video, Vudu, and more
  • Compatible with: Windows, Mac, iOS, Android, Linux, routers, Apple TV, and more

TunnelBear provides fast connections so that you can stream and browse without issues. I tested its servers in the US, UK, and Australia and recorded an average speed of 35 Mbps. Considering that you don’t need more than 2 Mbps to load a website and 5 Mbps to stream in HD, these results are excellent. You won’t have to deal with long waiting times as you browse.

It has an extensive server network that can bypass most geoblocks. I wanted to see if I can access Netflix US and Hulu with it, so I quickly chose a US server from the list and connected to it. It only took me a couple of seconds to load the platforms and start watching my favorite show. You won’t have any problem unblocking the most popular websites and services with it.

Screenshot of TunnelBear unblocking Netflix US

TunnelBear can unblock the most popular streaming services

The only downside of TunnelBear is that it doesn’t offer a money-back guarantee. However, you get 500 Mb of traffic to test the service, which is enough for one episode of Shadow and Bone.

When you’re ready to subscribe, take a look at its latest discount. You can get up to 67% off when you set up a new account. The signup process is simple, so it’s easy to test it out and see if you like it.

Get TunnelBear Now!

5. hide.me — Auto-Connect Finds You the Best Server in No Time

  • Lightning-fast speeds assure smooth browsing
  • 1,900 servers in 75 countries to easily bypass geoblocks
  • 10 simultaneous device connections
  • 30-day money-back guarantee
  • Can unblock: Netflix, Disney+, HBO Max, Hulu, BBC iPlayer, Vudu, and more
  • Compatible with: Windows, Mac, iOS, Android, Linux, routers, Apple TV, and more

hide.me’s Mozilla Firefox extension has a built-in auto-connect feature that keeps you protected at all times. I ran a few tests by activating the Auto Enable Proxy feature. Whenever I opened Firefox, I was connected to the closest server to my location. You can browse and stream as much as you like, knowing that you’re always protected online.

It keeps you anonymous with solid IP, DNS, and WebRTC protection. To test its effectiveness, I ran a full leak test on its Canada server. It successfully covered my actual location and IP address and also blocked WebRTC requests. You won’t have to worry about your identity being exposed online.

I didn’t encounter any IP, DNS, or WebRTC leaks with hideme

The only problem I had with hide.me is that its free plan doesn’t support streaming. On the bright side, you can take advantage of its 59% discount when you sign up and get all the features it has for a small price.

You can also use its 30-day money-back guarantee if you want to test it out. To see how the process works, I sent out an email to its support team a couple of days before my subscription ended. I explained that I didn’t need the VPN anymore and I wanted a refund. In 12 hours, I got an answer, and the support team approved my request. I had my money back in 13 working days.

Get hide.me Now!

How to Install a VPN Add-on on Mozilla Firefox?

Installing a VPN add-on on Mozilla Firefox is the easiest thing, and you can do it by following these steps:

  1. Get a VPN. My top recommendation is ExpressVPN because its extensive server network makes it easy to unblock any website.
  2. Access Mozilla’s add-ons store. You can find it in your browser’s settings under “Add-ons.”
  3. Search for ExpressVPN. Use the search box and look for ExpressVPN.
    Screenshot of Mozilla Firefox add-on store
  4. Add the add-on to Firefox. Just click the button, give the necessary permissions, and it will install shortly.
    Screenshot of ExpressVPN in Firefox Add-On Store
  5. Log into your account. Click on the extension, then log in, and it will take you to the form.
  6. Connect to a server. Choose any server on the list and click “connect.”
  7. Browse safely from Mozilla Firefox!

Try ExpressVPN Risk-Free Now!

VPN Features Quick Comparison Table

VPN Money-Back Guarantee Simultaneous Connections Compatible Streaming Services
ExpressVPN 30 5 Netflix, Hulu, BBC iPlayer, DAZN, HBO Max, Amazon Prime Video, Showtime, SlingTV
CyberGhost 45 7 Netflix, Hulu, HBO Max, BBC iPlayer
Private Internet Access 30 10 Hulu, Disney+, Amazon Prime Video, and BBC iPlayer
TunnelBear 5 Netflix, Hulu, HBO Max, Amazon Prime Video, Kodi
hide.me 30 10 Hulu, Disney+, Amazon Prime Video, DAZN, and BBC iPlayer

Try ExpressVPN Risk-Free Now!

How I Tested and Ranked The Best 5 VPNs

When I chose these 5 best Mozilla Firefox VPN add-ons, I analyzed the most important metrics:

  • Speed — the VPN’s speed is crucial because a slow connection can turn any activity into a frustrating experience. Even though it’s normal for the speed to drop when you connect to a VPN, you shouldn’t experience a decrease larger than 20%. All the VPNs on my list assure fantastic connections, so your browsing is flawless.
  • Server Number — a large server number means that you have thousands of IP addresses to browse from. If a streaming platform or website blocks one of them, you’ll still have plenty of other options to go with.
  • No-logs Policy — a zero logs policy means that the VPN doesn’t store information about your real IP or location. If an authority asks the company for information about its users, they’ll only provide them with generic data that don’t affect you in any way.
  • Encryptionevery VPN I chose offers IP and WebRTC leak protection, as well as military-grade encryption. You can browse without worrying that your sensitive information is out there for everyone to see. The websites you visit and the ISP and authorities will only see the VPN data, and you’ll stay anonymous.
  • Compatibility — just because you need a VPN for Mozilla Firefox, it doesn’t mean that you shouldn’t be able to use it on other devices. All the VPNs on my list offer multiple device connections and have clients for all the mainstream operating systems. This means that you can keep all your devices protected with just one subscription.
  • Bypassing Geoblocks — to fully enjoy the benefits of a VPN, I made sure that every single one on my list unblocks the most popular streaming platforms, such as Netflix, Hulu, Disney+, etc. You can enjoy Netflix’s US library from any corner of the world.

Browse Safely With ExpressVPN Now!

What are WebRTC Leaks and How To Prevent Them?

WebRTC stands for Web Real-Time Communication, and it’s a tool used by browsers to facilitate P2P connections. It’s the technology that allows you to send files over the internet without downloading any third-party software.

To do this, WebRTC creates a special communication channel between the browser and the website you visit. At that moment, the website can send a request to see your real IP address and location, which is what VPNs are trying to avoid.

Unfortunately, browsers can’t function without WebRTC. If you want to use any browser and not worry about having your data exposed, you have 2 options:

  1. Block WebRTC access from your browser — this method is complicated and may return errors from your browser. Browsers can’t function properly without WebRTC, so disabling it is not a long-term option.
  2. Use a VPN with WebRTC blocking — this is the easiest and fastest way to block IP requests and keep your identity safe. You can use ExpressVPN to block WebRTC requests without changing your browser’s configuration.

Try ExpressVPN Risk-Free Now!

FAQs on VPN Add-Ons for Mozilla Firefox

Can I use a free VPN with Mozilla Firefox?

Technically yes, but I don’t recommend it. Free VPNs usually have limited bandwidth, so you could only browse for a few hours before being locked out. The IP addresses get blocked quite often and are not refreshed, so you may not be able to unblock many streaming platforms. On top of that, there’s a chance you won’t get proper IP and WebRTC leak protection, so your sensitive data will be visible to your ISP and authorities.

It’s best to stick with the tried-and-tested VPNs and use the current special offers to save some money.

What’s the difference between a VPN add-on and a VPN app?

VPN add-ons are lightweight and allow you to browse the internet safely. They are very easy to use and protect you from IP and DNS leaks while also unblocking your favorite streaming platforms. However, they lack some of the features from the apps, such as the kill switch and split tunneling.

A VPN add-on will only tunnel your browser traffic, whereas a standalone app allows you to choose which apps and websites to route through the VPN. The VPNs on this list are compatible with the most popular operating systems, so you can choose one and test it yourself.

Can I use a VPN for Firefox on Android?

Unfortunately, no. Mobile browsers don’t support add-ons or extensions, so you’ll have to use the Android app for the VPN you choose. I made sure to only shortlist VPNs that are compatible with most mobile and desktop devices for your convenience.

What VPN can I use on Chrome, Opera, and Firefox?

All the VPNs on this list are compatible with Chrome and Firefox, but only Private Internet Access has one for Opera. However, there’s a small trick that allows you to install any Chrome extension on Opera. In its add-on store, you can find an app called “Install Chrome Extensions,” which you can use to install any of the VPNs here on your Opera browser.

Browse Safely With ExpressVPN Now!

Get the Best VPN for Mozilla Firefox Today

A VPN add-on for Mozilla Firefox is the easiest way to keep your online activity private using a lightweight and easy-to-use app. Besides, you’ll be able to unblock the most popular streaming platforms and access all the geo-restricted movies.

My recommendation is ExpressVPN. It has a large server network, allowing you to unblock all the websites you can think of, and its speeds will never leave you waiting. You can give it a test risk-free before you commit. If you don’t like it, you have a 30 day window to request a refund.

Try ExpressVPN Risk-Free Now!

To summarize, here are the best VPNs for Mozilla Firefox

Privacy Alert!

Your data is exposed to the websites you visit!

Your IP Address:

Your Location:

Your Internet Provider:

The information above can be used to track you, target you for ads, and monitor what you do online.

VPNs can help you hide this information from websites so that you are protected at all times. We recommend ExpressVPN — the #1 VPN out of over 350 providers we've tested. It has military-grade encryption and privacy features that will ensure your digital security, plus — it's currently offering 49% off.

Visit ExpressVPN

About the Author

Ariel Hochstadt, Formerly Gmail Marketing Manager globally for Google, and today web entrepreneur. Ariel is a successful international speaker and author of 3 published books on computers and internet. He is the co-founder of vpnMentor and an advocate of online privacy.

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