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Best VPN for Firefox

Rebecca Duff
Rebecca DuffUpdated

Firefox is becoming an increasingly popular browser choice for those looking to switch from Google Chrome, however other than a few extra features it doesn’t actually protect your privacy any more than Chrome does. This is why it’s essential to use a VPN to keep your ISP from viewing everything you do online, as well as protecting your confidential data from potential snoopers and hackers. The quality of Firefox extensions offered by providers varies massively, so we test them all thoroughly to save you a job, and write up the results in our comprehensive VPN reviews.

Our top picks for Firefox offer a smooth, lightweight experience for heavy browser users and allow you to access all of your favorite sites (including Netflix and BBC iPlayer) while hiding your true IP address. Our proprietary speed testing technology monitors VPN performance across several popular locations worldwide, meaning we can give you the most accurate VPN speed data in the current market.

The 5 Best VPN Services for Firefox
  1. ExpressVPN
  2. NordVPN
  3. HideMyAss!
  4. Private Internet Access
  5. KeepSolid VPN Unlimited
Read on for our detailed analysis of each VPN.
Our pick for Firefox
ExpressVPN

Incredibly fast and ultra secure. Full-featured Firefox extension. 24/7 live chat support.

Best price
$6.67 per month
Special deal
49% off 15-month plan
Money-back guarantee
30 Days
Customer Support
24/7 live chat support
No. of Server Locations
94 Countries
Simultaneous Connections
3
Pros
  1. Excellent speeds - 65Mbps global average
  2. Speeds of up to 224Mbps on local servers
  3. Works with Netflix, iPlayer and more
  4. Full-featured Firefox extension
  5. Protection against DNS, IPv6 and WebRTC leaks
  6. Connect securely to 94 countries
Cons
  1. Limit of three simultaneous connections
  2. Single month plan is expensive
Bottom Line

ExpressVPN is by far the best all-round performer on the current market. Performance is consistently good on local connections, peaking at 224Mbps in some locations, and equally as reliable across longer distances. These speeds are more than good enough for buffer-free HD streaming across multiple devices, so the fact that ExpressVPN is currently working with Netflix, BBC iPlayer and other popular services will be an added bonus for streaming fans.

ExpressVPN stands out for offering a full-featured Firefox extension rather than just a proxy, meaning that it encrypts all of your browser traffic and offers the same level of security as the desktop app. It also offers some advanced security features including protection against WebRTC leaks, which is a browser fault that can expose your true IP address, meaning your real location won’t be exposed if the VPN connection drops. A minimal logging policy is another selling point.

The customer support on offer is excellent, with 24/7 live chat manned by friendly, helpful support agents. One minor downside is the three device connection limit, which is pretty low compared to other providers, however this is unlikely to affect too many people. As a premium product it isn’t cheap, but you can reduce the monthly cost by almost 50% if you opt for the annual plan, bringing it down to a very reasonable $6.67.


Read our full ExpressVPN review

2
NordVPN

Very fast zero-logs VPN. HD streaming & handy Firefox proxy.

Best price
$2.99 per month
Special deal
75% off with 3-year plan
Money-back guarantee
30 Days
Customer Support
24/7 live chat support
No. of Server Locations
62 Countries
Simultaneous Connections
6
Pros
  1. Great speeds - average of 71Mbps globally
  2. Peak speeds of 296Mbps on local connections
  3. Consistent access to Netflix and BBC iPlayer
  4. Proxy extension for Firefox browsers
  5. Connect securely to 62 countries
  6. Strict zero-logs policy
Cons
  1. Slow responses to email and live chat
  2. Additional VPN protocols require manual config
Bottom Line

NordVPN is a good choice for Firefox if your monthly budget doesn’t quite stretch to ExpressVPN. Speeds on local servers are some of the quickest we’ve seen so far in our tests, peaking at 296Mbps in some locations, making it ideal for streamers and torrenters. Performance on international connections is just as impressive, and NordVPN is also one of a handful of providers that still works reliably with both Netflix and BBC iPlayer.

Nord missed out on first place purely because the Firefox extension is a proxy rather than a full VPN extension, unlike the one offered by rival ExpressVPN. It’s a great lightweight solution for heavy browser users but doesn’t offer the same level of encryption as the desktop and mobile apps, therefore we’d advise caution when using it. Nord operates a strict zero-logs policy, which is great, and there are loads of advanced privacy features on offer too, including servers optimized for Double VPN.

There are loads of useful setup and troubleshooting resources on the website, however Nord loses points when it comes to email response times, which were pretty slow in most cases. Changing the VPN protocol isn’t as simple as our top pick, requiring some manual configuration, but at the ridiculously low price of just $2.99 per month on the three-year plan, we’re willing to overlook this.


Read our full NordVPN review

3
HideMyAss!

Extremely fast VPN. Quick, easy HD streaming & Firefox proxy extension.

Best price
$2.99 per month
Special deal
75% off with 3-year plan
Money-back guarantee
30 Days
Customer Support
24/7 live chat support
No. of Server Locations
190 Countries
Simultaneous Connections
5
Pros
  1. Great speeds - global average of 62Mbps
  2. Speeds of up to 333Mbps on local connections
  3. Servers optimized for P2P/torrent use
  4. Dedicated servers for Netflix and iPlayer
  5. Useful proxy extension for Firefox
  6. Connect securely to over 190 countries
Cons
  1. Based under UK jurisdiction
  2. Collects detailed connection logs
  3. Limited to OpenVPN on desktop
Bottom Line

HideMyAss! offers the biggest choice of server locations of all the VPN providers currently on our site. You can choose from over 190 different countries, and with speeds of up to 333Mbps on local connections, you can enjoy a seamless browsing experience no matter where in the world you’re connecting from. There are also servers optimized for popular streaming sites, such as Netflix and BBC iPlayer, making watching your favorite shows quick and easy.

Like most other providers, HMA!’s Firefox extension is a proxy rather than a full VPN extension, so although your real IP address is hidden, your web traffic is not encrypted in the same way that it is with the desktop app. For this reason, we’d recommend it to heavy browser users but not really to anyone else. Also be aware of HMA!’s fairly intrusive logging policy, in which detailed connection metadata (including your originating IP address) is collected and stored for up to three months.

Customer support is pretty good, if somewhat poorly organized, but there is a live chat feature available 24/7. HMA! isn’t a budget provider, but you can save yourself 75% by signing up to the three-year plan, bringing the monthly cost down to just $2.99. A good choice if you’re looking for a huge server network and sleek, modern apps.


Read our full HideMyAss! review

4
Private Internet Access

Super fast, private VPN. Firefox proxy extension. Easy access to streaming sites.

Best price
$2.91 per month
Special deal
58% off with 2-year plan
Money-back guarantee
7 Days
Customer Support
24/7 Email Support
No. of Server Locations
33 Countries
Simultaneous Connections
5
Pros
  1. Brilliant speeds, averaging 89Mbps globally
  2. Works with Netflix and BBC iPlayer
  3. Sleek proxy extension for Firefox
  4. Unrestricted P2P and torrent use
  5. Connect securely to 33 countries
  6. Strict zero-logs policy
Cons
  1. Very small server network
  2. Based under US jurisdiction
  3. Desktop app is old-fashioned and clunky
  4. Slow responses to email
Bottom Line

Private Internet Access will appeal to users looking for raw power and a ton of manually configurable options. It’s seriously fast on both local and international connections, peaking at an incredible 427Mbps down and 233Mbps up – this kind of performance is some of the best we’ve ever seen. It’s currently working with both Netflix and BBC iPlayer too, however a lack of dedicated streaming servers means access isn’t as hassle-free as it could be.

PIA’s proxy extension for Firefox is great for heavy browser users who want to mask their IP address but aren’t too fussed about encrypting their browser traffic. It does offer WebRTC leak protection, which is a useful feature that prevents your true IP address from being exposed, however it lacks some of the settings found on the desktop app, such as a VPN kill switch. A strict zero-logs policy makes up for the fact it’s based in the privacy-unfriendly USA.

The standard of customer support on offer is good enough but we really missed a live chat feature, and slow email responses meant that we were often left waiting for a really simple question to be answered. The old-fashioned software is perhaps aimed more at experienced users than VPN newbies, however the incredibly low price of $2.91 per month on the two-year plan means that most people will probably be able to overlook this.


Read our full Private Internet Access review

5
KeepSolid VPN Unlimited

Solid VPN with strong privacy features. Access to Netflix. Firefox proxy extension.

Best price
$1.66 per month
Special deal
83% off with 5-year plan
Money-back guarantee
7 Days
Customer Support
24/7 Email Support
No. of Server Locations
54 Countries
Simultaneous Connections
5
Pros
  1. Speeds of up to 102Mbps on local connections
  2. Easy access to Netflix and BBC iPlayer
  3. Optimized servers for P2P/torrent user
  4. Proxy extension for Firefox browser
  5. Connect securely to 54 countries
Cons
  1. No live chat support
  2. Inconsistent global speeds
  3. Very vague logging policy
Bottom Line

KeepSolid VPN Unlimited is a solid, well-rounded VPN with user-friendly software that’ll appeal to VPN newbies. Speeds are good enough on local connections but international performance is inconsistent, and high latency and P2P restrictions mean keen gamers and torrenters should probably look elsewhere. Optimized servers for popular services such as Netflix and BBC iPlayer make streaming a breeze.

The proxy extension for Firefox is a great added bonus if you don’t need to encrypt your browser traffic and simply want to spoof your IP address in order to access blocked content. It also protects you against WebRTC leaks which is pretty useful. The other custom apps on offer by VPN Unlimited are sleek and modern but we really missed the VPN kill switch feature. Its logging policy is also pretty questionable, so steer clear if privacy is your top priority.

We were quite impressed with the customer support on offer, with super fast responses to email and loads of comprehensive, well-organized online resources – we’d love to see a live chat feature in the future though. The lifetime subscription is excellent value costing just a one-off payment of $199.99, so VPN Unlimited is well worth considering if you’re willing to continue using the service for the considerable future.


Read our full KeepSolid VPN Unlimited review

How we picked the best VPN for Firefox

Our top picks for Firefox all provide sleek, user-friendly apps for a range of devices, meaning they’re great choices for VPN newbies as well as more experienced VPN users. They offer top-class performance, particularly on same-country connections, and work to access popular streaming sites including Netflix and BBC iPlayer. They pack in a decent amount of advanced security features and have privacy-friendly logging policies so that none of your online activity can be traced back to you.

We are constantly running tests on all of the VPNs featured on our site to make sure we can give you the freshest, most accurate reviews and recommendations we possibly can. Our proprietary speed test tool monitors performance in loads of popular countries across the globe, meaning we can provide you with some of the most accurate data in the world. We even put customer support to the test to make sure that any potential problems you have will be solved quickly and efficiently.

How to use a VPN for Firefox

Before you begin using a VPN on Firefox, you’ll have to decide whether you’re going to opt for a paid subscription or use a free service. Free Firefox extensions are always proxies, meaning they’ll mask your IP and allow you to access blocked content, however they won’t encrypt your web traffic, so the owner of the server you connect to will still be able to view your browsing history. Most of them are also subject to very restrictive data caps (around 500MB) so you’ll be very limited to what you can actually do online. If you pay for a subscription you’ll be able to use it on other apps as well as Firefox, and also won’t have to put up with running out of data at any point.

Once you’ve chosen your provider, installing the Firefox extension onto your browser is simple and takes just minutes to setup- you can check out our setup guide for Firefox here. After that, using a VPN on Firefox is pretty much the same as using it on any other platform. All you have to do is choose a location and you’ll appear to be connecting out from that location – this means that anyone trying to track you won’t be able to see where you really are. For the quickest possible speeds you’ll want to choose a server as close as you can to your physical location. Most providers have an automatic setting that’ll do this for you, but if not, just choose one that’s in the same country and you shouldn’t have any issues.

Once you’re connected to the VPN, simply carry on using Firefox as you normally would. Some of our top choices offer protection against DNS/IPv6/WebRTC leaks, so make sure you turn these on before you start browsing. It’s important to remember that if you’re just using the Firefox extension and no other form of VPN app (i.e. desktop or mobile) you’re only masking the IP of your browser traffic. This means that any apps you use outside of your browser (such as Spotify) aren’t protected and are visible to your ISP and potentially other third parties. In most cases we’d suggest using the extension on top of the desktop app for the highest level of privacy.

How to choose a VPN for Firefox: 8 Tips

  • Does it offer a Firefox extension?

    All top-tier VPN providers offer custom apps for desktop and mobile, however only a handful offer decent extensions for Firefox browsers. Our top picks all boast sleek, user-friendly Firefox extensions, but look out for the difference between full VPN and proxy extensions – proxies will spoof your IP address but won’t encrypt your web traffic.

  • Does it offer fast, consistent speeds?

    There’s not much point choosing a VPN with a great Firefox extension if sub-standard performance is going to limit what you’re able to do online. As a general rule, the faster speeds, the better, and you should also look for low latency on local servers for a seamless browsing experience.

  • Does it have servers in the locations you need?

    In order to get the best possible performance, you need to choose a VPN server close to your physical location. A higher number of individual servers tends to mean less congestion and improved speeds but unfortunately this isn’t always the case. Take a look at our speed test results to get the best idea, especially if you’re looking to connect to a specific country.

  • Will it work with your favorite websites and apps?

    Do you enjoy using streaming sites such as Netflix or BBC iPlayer? Not all VPNs will work with these websites. We are continuously testing whether each VPN is working with Netflix and other popular sites, and share these results in our VPN reviews.

  • What is their logging policy?

    Most VPNs will claim to be completely zero logs but this is almost never the case. In order to deliver a decent level of server performance across a worldwide network, most providers will need to monitor at least some user connection details to ensure servers arent becoming overcrowded. We summarize providers privacy policies in plain English in the logging policy section of our reviews, meaning you dont have to spend your time reading through them all. Ideally you want to choose a provider that doesnt log any details that could be used to personally identify you, or even better, one that doesnt collect any logs whatsoever.

  • Are their client apps and software easy to use?

    Most of you aren’t only going to be using a VPN with Firefox, so you need to choose a provider that offers a good range of custom apps designed for both desktop and mobile. Look for a VPN with software that’s well-designed, user-friendly and powerful and you will be much more likely to use it on a regular basis. We share the results of our hands-on testing of each VPN app in the the Ease of Use part of its review. We spend all day testing VPN apps, so hopefully we know a thing or two!

  • Check connection, encryption and security features

    The sheer amount of VPN jargon can be overwhelming, even if youre really tech-savvy. Look out for OpenVPN, as this VPN protocol offers the best balance of speed and security. Don’t get lost in talk of military or bank-grade encryption and just look for AES-256, as that’s the best you can get. Unless you know your DNS from your IPv6, a VPN killswitch is the main thing to look out for among security features as it will protect you from exposing your real IP address should your connection drop unexpectedly.

  • Finally, check the price and money-back guarantee

    Even the most expensive VPN plans are very affordable but you will likely have a budget in mind. 12-month plans typically offer the best value and you can reduce the risk of buyer’s remorse by choosing a VPN with a long refund period, preferably 30 days and with no questions asked. These guarantees are much more common than traditional free trials but are essentially the same thing.