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The best Mozilla Firefox VPN 2020

Even though it significantly trails behind Google Chrome, Mozilla’s browser is still a very popular option amongst millions. 

This is partly due to its security features as it operates a FOSS (free open source software) - and if security is the concern then a VPN is an excellent add-on to choice to the browser. 

However, when researching the add-on choice that is a VPN provider - there is a significantly large amount of options out there. So, with this much choice, how do you go about picking the right one for you?

Luckily for you we've got a VPN guide for you below - just keep reading.

Best Mozilla Firefox VPN

1. ExpressVPN

Best all-round VPN

Number of servers: 3,000+ | Server locations: 160 | IP addresses: N/A | Maximum devices supported: 5

Impressive server support
30-day guarantee
Dedicated Firefox privacy extension
A bit pricey

ExpressVPN offers more than 3,000 servers across 160 locations in 94 countries. In our testing, we found this VPN was a spectacular performer, particularly over long distance connections where it didn’t lose much speed at all.

The Firefox extension is rather simple and basic. There’s not much to do here: you can select a server, see your VPN status, choose to connect on browser startup and Block WebRTC to obscure your IP. The extension is not of the standalone variety so you must install the ExpressVPN app for either Windows or Mac for it to work.

But it's still worth noting that the extension provides WebRTC blocking, location spoofing and HTTPS Everywhere support - so certainly an improvement to privacy when browsing. Staying on the security front, you get 256-bit encryption along with a zero-knowledge DNS solution and a network lock kill switch. ExpressVPN clearly states that it doesn't gather or log traffic data or browsing activity so your privacy will remain intact.

A quick look at the pricing shows that this VPN is a bit more expensive than most other VPNs. However, the provider has a 30-day ‘no-hassle’ money-back guarantee which is very much welcome as there is no free plan or trial. As usual, the 1-year plan (which currently boasts an additional three free months) offers the most for your money. The packages available are:

2. Hotspot Shield

Fastest VPN

Number of servers: 2,500 | Server locations: 70+ | IP addresses: N/A | Maximum devices supported: 5

Fast download speeds
Free offering
Fairly expensive paid subscription
Few server locations

The Hotspot Shield extension for Firefox is completely free with unlimited bandwidth. As is the case with the provider’s Chrome offering, one simple click is all it takes to connect. In terms of configuration options, you’re limited to choosing four server locations, but on the positive side, this extension isn’t ad-supported.

Our performance tests delivered some excellent results, with both upload and download speeds increasing a bit once connected to the VPN (almost by a third in terms of uploads). The company uses 256-bit encryption and privacy-wise there's the standard ‘no logging’ claim meaning the firm doesn’t track your online activities.

As mentioned, there is a location-limited free version, but if you upgrade to the Elite version of Hotspot Shield you get access to all virtual locations along with the benefit of cloud-based malware protection, and more. There’s a 7-day trial you can use to test the full VPN, which is just as well as it’s quite pricey, although the 2-year plan is quite affordable. The packages available are:

3. ZenMate

Best for novice users

Number of servers: 1,500+ | Server locations: 27 | IP addresses: 3,000 | Maximum devices supported: N/A

Highly user-friendly
Very basic
Average performance

Just by browsing the website you can see that ZenMate clearly pitches its offering to VPN novices. So it’s no surprise that the Firefox extension is very easy-to-use, allowing for a simple connect/disconnect, change of location and that’s about it. It’s important to note that the add-on is free but you have only four locations at your disposal, but you can subscribe to a paid plan that offers full access to all servers.

ZenMate yielded average but perfectly acceptable speeds during our performance testing – around 85% of our normal download rates over short hops, and 55% of our normal speeds over long distances.

As a German company, ZenMate is quick to point out it’s bound by strict data privacy laws stipulating that it must not track any IP or connection data.

Premium (paying) users get more server locations as we mentioned, along with automatic switching of locations based on the site being accessed, higher speeds, as well as malware blocking and tracking protection. There are three paid plans offering monthly, 6-monthly or yearly billing. The annual subscription is a fairly good deal. The packages available are:

4. Windscribe

Best free VPN

Number of servers: 400+ | Server locations: 60 | IP addresses: N/A | Maximum devices supported: Unlimited

Free plan with 10GB/month data
Unlimited device connections
Scarce plan selection
Inconsistent long-distance performance

With a rather unusual approach to its VPN, Windscribe offers unlimited device connections (most providers limit you to five devices, or indeed fewer). Our testing revealed good performance levels, with only around a 10% loss on our regular upload and download speeds via local connections. Longer distances were a different story with slower speeds, though. 

Browsing with the Firefox extension allows for some interesting options including different connection modes, a secure link generator, and the ability to remove all social media buttons and block tracking. The extension is also regularly updated, which is good to see.

Windscribe’s privacy policy is perfectly clear and favorable – the firm insists that there is no logging of historical sessions, or records of incoming or outgoing IP addresses or individual activities.

The Canada-based provider’s free plan is one of the best in the business. You get 10GB a month data allowance if you register with an email address (2GB if not). Naturally, there are some restrictions – access to servers is limited to just 10 of them. If you want to subscribe and lift these limits (including getting unlimited data), you have three choices. The packages available are:

invisible browsing VPN

5. Invisible Browsing VPN

Most affordable VPN

Number of servers: 180+ | Server locations: 63 | IP addresses: N/A | Maximum devices supported: 5

24-hour trial
Affordable pricing
Low speeds with some longer distance hops
Cheapest plans support one connection only

This provider has over 60 locations in 49 countries on offer. In our performance tests, Invisible Browsing VPN got mixed results, with short hops seeing speeds well above average, but longer distance connections were slower.

The Firefox add-on is the usual run-of-the-mill affair: there’s one-click connect, location switching and the best server is selected based on your needs. You also get P2P support here, but it’s limited to a small number of servers.

The service supports OpenVPN, PPTP, L2TP, and SSTP security protocols. A kill switch and auto-reconnect feature are included and the provider clearly states that it doesn’t track its users’ online activities.

The price plan selection is rather interesting, and it’s organised according to purpose, with, for example, a plan aimed at torrent users. There is a 24-hour trial to try it out, too. Pricing is affordable but bear in mind there is a one connection limit on all but the Ultimate VPN plan, which is the clear winner as it gives you all the goodies at a relatively palatable yearly rate. The packages available are:

How to choose the best Firefox VPN

Obviously, a big priority is being able to get around censorship on the web and unlock geo-restricted content. And if it’s streaming content you’re unblocking, you’ll obviously want good performance levels from your VPN, and a decent server count can help with that quest.

As Firefox can be a bit resource-heavy, the extension should be light and unobtrusive, with a solid mix of options for both basic and tech-savvy users. And it goes without saying that tight levels of privacy and security are a must.