Download Firefox VPN: Browse Without Being Watched

A Firefox VPN extension is a small add-on you install in your browser that helps protect your privacy and security while you browse. It works by encrypting your browser’s internet traffic and hiding your IP address, making it harder for websites, advertisers, and network providers to track you or monitor what you’re doing online.

When you activate a VPN extension in Firefox, it routes your browser traffic through a secure, encrypted tunnel to a VPN server in another location. This changes your visible IP address and hides your online activity from ISPs, trackers, and even people on the same Wi-Fi network. Some VPN extensions, like ExpressVPN’s, also offer features like WebRTC leak protection and geolocation spoofing to further enhance your privacy.

Without a VPN, everything you do in your browser can be monitored—by your internet provider, your employer or school, websites you visit, and advertisers. A Firefox VPN keeps your activity private, hides your real IP, and adds a strong layer of encryption between you and the internet. Whether you're using public Wi-Fi, researching sensitive topics, or just want peace of mind, a VPN extension helps ensure your browsing stays your business.

Yes, the ExpressVPN browser extension works together with the ExpressVPN app on your device. The extension acts like a remote control for the app—it lets you manage your VPN connection from inside Firefox, but it still depends on the app to handle encryption and routing. This setup gives you full-device protection along with extra browser-specific features like location spoofing and WebRTC leak prevention.

No, it’s not recommended that you use a free Firefox proxy. This is because free proxies often lack in crucial areas such as speed, security, encryption, and overall quality of service. This can lead to a suboptimal online experience.

There are also risks associated with some free proxies, including injecting targeted ads and spam, logging your browsing history, stealing bandwidth, and even recording sensitive information like usernames and passwords. Instead, consider investing in a premium Firefox VPN extension like ExpressVPN for optimized connections, advanced security features, and unparalleled reliability.

There are two ways to browse on Firefox with a VPN:

1. Using a standalone VPN app:

Download and install the ExpressVPN app on your device.

Open the app and connect to a server.

Open Firefox and start browsing.

2. Using a VPN browser extension:

After installing the ExpressVPN app to your device, download the ExpressVPN browser extension for Firefox.

Click the ExpressVPN extension icon in the toolbar and click the connect button.

Firefox will now route all of your traffic through your chosen VPN server.

The simplest way to check if your Firefox VPN is working is by searching “What’s my IP” in the search bar with and without a VPN turned on. You should see that your IP address changes when you use a VPN.

No protection is 100% foolproof, even ifFirefox is considered to be one of the most safe and secure browsers available.

The ExpressVPN extension for Firefox works like a remote control for your ExpressVPN app, making it easy for you to connect, disconnect, change locations, and modify other settings right from your toolbar. But that’s not the only benefit.

The extension also offers additional privacy and security features like WebRTC blocking and location spoofing, beyond what any VPN can offer alone. If you are seeing an error while trying to stream video on your browser, for example, using the extension will often fix the problem.

Your browser history is typically stored inside your browser. Using a VPN will not change this, but you can disable such recording in Firefox and delete any history collected so far.

Your browsing history might also be inferred by others monitoring your internet connection, such as your internet service provider or Wi-Fi operator. ExpressVPN encrypts all data between your device and the ExpressVPN servers, making it impossible for an ISP or rogue Wi-Fi to record the sites you visit.

Note that browser history is not the same as search history. If you are logged in to Google and using its search engine, those searches will be recorded even if you are using a VPN. (Learn how to delete your Google search history.)

Security is at the forefront of what we do at ExpressVPN. Not only do we aim to design our apps and systems to offer a high level of privacy and security, but we also routinely engage independent auditors to validate our security claims. It’s one of the best ways for our users to know if they can trust our services to protect them. *See the full list of audits& and read the full reports.

Firefox offers Mozilla VPN, but it’s a separate paid service—not something built into the standard browser. Most users will need to install a third-party VPN extension (like ExpressVPN’s) to add real privacy and security to their Firefox sessions. Firefox’s private browsing mode hides history locally, but it doesn’t encrypt your traffic or hide your IP from the outside world—that’s where a VPN comes in.