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Screenshot of the Surfshark VPN user interface with the text Connected and safe and buttons labeled Disconnect and Pause.

Get a Firefox VPN extension and protect your privacy

Get Surfshark proxy for Mozilla Firefox:

Encrypt your traffic and surf securely with no speed drops

Block ads, trackers, and malware, and enjoy a cleaner browsing experience

Connect to servers in 100 countries for a stable connection wherever you are

Get Surfshark Download the extension

30-day money-back guarantee

How to get a VPN extension for Firefox in 3 easy steps

Setting up a proxy VPN (Virtual Private Network) extension for Firefox is super easy:

1. Get Surfshark

Pick a pricing plan and subscribe to Surfshark.

2. Add the extension

Get the Surfshark VPN proxy add-on for Firefox.

3. Connect to a server

Hit Quick connect and enjoy private and safe browsing.

For more in-depth instructions, visit our support page.

Try a Firefox VPN extension risk-free for 30 days

Try Surfshark VPN for Firefox with zero risk. Not fully convinced that our VPN browser extension is the best for you within the first 30 days? Get your money back — no questions asked.

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Install Surfshark on your favorite devices

Surfshark VPN doesn’t limit secure connections and offers protection for all your compatible devices. Select an icon to visit the dedicated VPN download page.

Windows macOS Linux Android iOS Chrome Firefox Edge Apple TV FireTV

From our Firefox browser extension to a desktop VPN, mobile app, smart TVs, and even gaming — we’ve got you covered.

Privacy, security, and other benefits of a VPN proxy for Firefox

Prevent activity tracking

Connecting to a Firefox VPN proxy helps keep you safe online. Surfshark encrypts your traffic and hides your IP address, ensuring that neither we nor anyone else can see what you do online.

Auto connect to the fastest server

Surfshark has thousands of servers — but you won’t need to look for the fastest one yourself. The auto connect feature automatically picks the fastest connection for your location.

Secure all your devices at once

Surfshark VPN offers unlimited simultaneous connections. With no device limits or data caps to worry about, you can stay protected on Firefox and across all other supported devices.

Stop ads with Clean Web

Surfshark’s built-in Clean Web feature for Firefox blocks banners, video ads, trackers, and cookie consent pop-ups, providing you with a cleaner, faster browsing experience.

Personalize your security with Bypasser

Surfshark’s Bypasser (split tunneling) on extensions lets you exclude specific websites from the VPN connection. This can improve performance and make accessing trusted services more convenient.

Tap into an expansive server network

Surfshark offers more than 3,200 dedicated servers in 100 countries. If you ever experience a slowdown, finding a less crowded server is as simple as can be.

Install with ease

Getting started with a VPN doesn’t have to feel like a chore. Surfshark’s easy-to-install extension boosts your online security in just a few clicks.

Stay safe with a kill switch

Surfshark’s kill switch instantly cuts you off from the internet if your VPN connection drops. This prevents accidental data exposure, keeping your Firefox browsing secure at all times.

Stay informed with real-time breach alerts

Our Firefox extension notifies you of malware risks or past data leaks on websites you visit in real time, adding extra security and peace of mind.

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Disclaimer: Please note that using Surfshark services for any illegal activities is strictly forbidden and violates our Terms of Service. Make sure that any use of Surfshark services for your particular activities conforms to all relevant laws and regulations, including those of any service providers and websites you access using Surfshark.

3,200+ servers, 100 countries, 6 continents

All servers

Surfshark vs. free Firefox VPN extensions

Free extensions can come with privacy and performance trade-offs. For a more secure and reliable browsing experience, Surfshark’s VPN for Firefox offers a trusted alternative.

	Free VPN extensions	Surfshark for Firefox
Data collection risk	High: free options often track your activity and share data with third parties	Low: Surfshark’s strict no-logs policy is independently verified*
Speed and bandwidth	Restricted: speed throttling and bandwidth limits are common	Unlimited: no bandwidth or speed caps are in place
Ads and trackers	Common: free tools may inject ads or allow trackers	Blocked: CleanWeb offers built-in ad and tracker blocking
Customer support	Limited: often no live help and slow response times	24/7: live chat and email support are available
VPN servers and locations	Few: frequently have overloaded servers that slow your connection	Thousands: lets you connect to 3,200+ high-speed servers in 100 countries
Encryption	Unreliable: may lack strong encryption standards	Strong: robust encryption for increased data and privacy protection

*Most paid VPN apps don’t track what you do online, but the Firefox browser itself can still gather user data.

Testimonials proving excellence

At Surfshark, we strive to offer a hassle-free experience for all our users. But don’t just take our word for it — here’s what the world has to say about us.

All the VPNs you mentioned are good. But Surfshark is the one I recommend in person for the best overall.

— Teshir Jennifer (@Aikojenny_) July 28, 2024

I’ve had SurfShark for years. It’s amazing.

— Morgan Leggett (@YouBettaLeggett) August 13, 2024

Trialling out @surfshark‘s IP rotation. It is doing it pretty well. Seamless in the background.

— Eakan (@eakangk) October 26, 2024

The reviews highlighted in this section were selected from publicly available posts on social media platforms. They reflect the opinions of individual users at the time of posting and may not represent the full range of our product features and qualities.

“Surfshark is a highly polished and powerful VPN that competes with the very best premium providers, all while offering a seriously tempting price point.”

“Surfshark is one of the best VPN services, comes crammed with features, runs on almost anything, and has some of the best download speeds around.”

“Surfshark is an excellent, well-rounded virtual private network that consistently ranks as one of CNET’s best VPNs.”

The reviews quoted on this page have been published by media outlets associated with Surfshark through affiliate partnerships. Their recommendations are based on their own independent research and insights to ensure value for the readers.

I have been using Surfshark since I got it and I love it!

MRWHOSETHEBOSS 20.2M subscribers

When I am traveling, I use Surfshark to access the internet quickly and securely, works like a treat in China.

SAM CHUI 3.61M subscribers

We love Surfshark because it is an easy-to-use app that you can download on all your devices.

MAX & OCCY 265K subscribers

“This is my first year and I absolutely love it. The fact I can have a good antivirus, great VPN, and incognito for like $120 a year is great.”

Open in Reddit

“I’ve been using Surfshark for 4 years on Android and ChromeOS with zero issues, it’s an absolute bargain”

Open in Reddit

“I’ve had it for 3 years and just renewed it for the next 2 years. I never have any issues with it and get my full internet speed..”

Open in Reddit

FT 1000: Europe’s Fastest Growing Companies 2024

Tech Advisor Editors’ Choice 2024

TechRadar Recommended 2024

Surfshark Antivirus AV-TEST Top Product 2024

Independent’s Editor’s Choice Best Value VPN 2023

Frequently asked questions

What is a Firefox VPN proxy extension?

The Surfshark Firefox proxy extension routes your browser’s online traffic through Surfshark’s servers, masking your IP (Internet Protocol) address for enhanced privacy. While the extension helps conceal your location, it does not fully encrypt all traffic like a VPN; instead, it’s the secure websites (HTTPS) that provide encryption between your browser and the destination site.

Note: Unlike most proxy extensions, Surfshark also masks your IP address.

Are VPNs safe?

Yes, reputable VPNs are generally safe and provide additional privacy by encrypting your internet connection and hiding your IP address. However, it’s important to choose a trustworthy VPN provider to ensure that your data is secure and not logged — for example, Surfshark has undergone an independent infrastructure audit to assure users that their data remains in good hands.

How do I enable a VPN on Firefox?

To enable a VPN on Firefox, install a VPN extension from a reputable provider in the Firefox Add-ons store, then log in and activate it through the extension’s interface. This will route your browser’s traffic through the VPN.

How do I know if my Firefox VPN extension is working?

To check if your VPN extension is working, run a VPN test. The results should display the location of your VPN server rather than your actual location. Most VPN extensions also indicate active connections within dedicated icons.

How do I browse on Firefox with a VPN?

Once you enable the VPN in your Firefox browser, it will encrypt and route your traffic through its servers, allowing you to browse securely and access familiar content when traveling abroad. Simply browse as you normally would for added privacy.

Does Firefox have a built-in VPN?

No, Firefox does not come with a built-in VPN, but it offers VPN services through Firefox Private Network and Firefox Relay as optional add-ons. These services, however, require separate installation.

Is Firefox VPN free?

Firefox offers some free privacy tools, but its main VPN service, Mozilla VPN, requires a paid subscription for full access. Some limited privacy extensions may be available for free, but full VPN services typically come with a cost.

Is there a completely free VPN extension for Firefox?

Yes, there are free VPN extensions for Firefox, but their privacy practices and performance may vary. Be cautious with free options, as some may collect data or limit your browsing speed and server choices.

Get a Firefox VPN extension and protect your privacy