Firefox VPN Extension for Extra Browsing Privacy
Browse with added privacy and security using the best VPN extension for Firefox
- Get advanced in-browser privacy controls for extra protection
- Mask your IP address from global server locations
- See fewer ads with our built-in blocker, PIA MACE
- 30-day money-back guarantee for new subscribers
Compatible with: Firefox v57+

Protection For All Your Devices
Extend Your Privacy with PIA’s Firefox VPN Extension

Avoid Network Prediction
Keep your browsing more private by preventing Firefox from contacting suggested websites before you actually visit them.

Advanced Anti-Tracking
Disable link auditing, UTM blocking, and social media tracking with advanced obfuscation features.

Fingerprint Protection
Scramble your device fingerprint to help prevent websites from tracking your device configuration.

PIA MACE
Block known ads, malware, and tracker domains before they reach your device with PIA’s powerful blocker.

WebRTC Protection
Patch WebRTC vulnerabilities to keep your IP address more private and help prevent leaks.

Force HTTPS Encryption
Add extra data security to your browsing by forcing sites to serve up HTTPS versions if they exist.
Protection for More Than Just Your Browser
Increase protection for every app on your device, not just Firefox. PIA’s full VPN app encrypts traffic across your entire device and gives you access to 148 server locations globally. You can install PIA VPN on your Android, iOS, Windows, Mac, and Linux devices, or set it up on a compatible router to cover the entire household. One subscription gets you unlimited device connections.


Firefox’s Built-In VPN vs. PIA VPN
Some newer versions of Firefox include a free VPN feature. While on the surface, this appears to be the same as PIA’s VPN browser extension, it’s actually a lot more limited. It limits your monthly usage and available servers, and only works in your browser. If you want device-wide protection, you need to pay for an upgrade.
By contrast, PIA offers unlimited usage, global server options, and a choice of in-browser or device-wide coverage. A single subscription is all you need to cover all your devices simultaneously, with no upgrades required. PIA also offers split tunneling, streaming support, P2P support, and 24/7 support.
How PIA’s Firefox VPN Compares to Free Extensions
Free Firefox VPN extensions may seem appealing at first glance, but they can put your security at risk. Before you get a VPN extension, make sure it offers strong security features, as well as a strict and verified no-logs policy.
Let’s take a look at a few reasons why PIA VPN for Firefox is a better option.
PIA VPN for Firefox
- No Logs policy
- Server locations worldwide
- Blocks many ads
- Blocks known trackers and malware
- WebRTC protection
- Optimized for fast connections
- Includes access to the full VPN app
- Unlimited bandwidth and data
- 24/7 customer support
Free Firefox VPN Extensions
- May sell your data
- Limited server locations
- Ad-supported
- May contain malware
- Your real IP address may be exposed
- Slow, unreliable connections
- Only works in your browser
- Limited data transfer
- Little or no support
Why Choose PIA VPN for Firefox?

Trusted Privacy
Keep your Firefox browsing habits to yourself. PIA never monitors, stores, shares, or sells your browsing data.

100% Transparency
Check out our source code on GitHub anytime – our apps are 100% open-source, and we have nothing to hide.

Fast Servers
Browse, stream, and game with fast VPN speeds thanks to our 10-Gbps NextGen server network.

Unlimited Connections
Boost protection for your Firefox browsing and all your devices at once with a single PIA subscription.

Advanced Controls
Use Bypass List to exclude specific domains from the VPN tunnel, and Smart Location to always use the same server for certain domains.

24/7 Customer Support
Contact us anytime using 24/7 live chat or email, or visit our extensive knowledge base to learn more about our features.
When Should I Use the Firefox VPN Extension vs. the PIA VPN App?
Use the Firefox VPN extension when you only need a layer of protection inside your browser. It only applies to Firefox traffic, so everything outside the browser stays unaffected.
If you want full-device coverage, you need a VPN app. It encrypts all internet traffic, including apps, downloads, and background activity, making it the better choice for public Wi-Fi, gaming, and safer browsing across your whole device.

Firefox VPN: Frequently Asked Questions
PIA’s Firefox browser extension is a VPN add-on that only covers Firefox. You’d need to install the relevant extension for other browsers, like Chrome, if you want to enhance security for them too. PIA’s VPN app boosts protection for your data across your entire device, including your browsers, apps, and operating system.
Firefox is more private than most mainstream browsers, but it doesn’t provide extended data protection. PIA’s Firefox VPN extension helps prevent online tracking, masks your IP address the moment you connect to our servers, and offers advanced features designed to help you browse with more privacy.
When you add the PIA VPN extension to Firefox, it reroutes your connection through a remote server, which masks your real IP address for more privacy. The extension also includes a range of privacy and security features designed to help keep you safer online.
If you want to add a layer of protection for your entire device, you need the full VPN app. The Firefox VPN extension is excellent if you simply want more privacy and security while browsing Firefox, but that’s all it covers. PIA’s full VPN app can cover all the browsers, apps, and devices you use.
A WebRTC leak happens when your browser’s WebRTC functionality exposes your real IP address to websites, typically during VOIP calls or P2P activity. This can reduce your online privacy by revealing identifying network information. PIA VPN offers built-in WebRTC leak protection to help prevent your true IP address from being exposed.
PIA also offers a VPN extension for Chrome, which also works in Microsoft Edge. There isn’t an extension for Safari yet, but we offer dedicated apps for iOS and macOS, so you can boost privacy on all your Apple devices by installing our full VPN app.
Most VPN extensions can introduce a small speed drop since your traffic is being routed through a remote server. However, a well-optimized extension is designed to keep that impact minimal. PIA’s Firefox VPN extension is built to stay lightweight while connecting you to our high-speed 10-Gbps network. In most cases, speed loss is barely noticeable, so you can browse, stream, and search as usual, but with added privacy.
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