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Firefox has temporarily removed the 50GB monthly data cap from its free built-in VPN, giving signed-in users unlimited browsing data through January 31, 2027, Mozilla announced on November 10.[1]
The offer covers Firefox on desktop and Android. It could be useful if you want to keep your browsing destinations private on hotel Wi-Fi or make it harder for websites to track you through your IP address.
But Mozilla includes a caveat: “VPN doesn’t make you anonymous online or hide browsing history on your device.”
Websites can still recognize you through cookies and accounts you sign into, and the free feature covers traffic inside Firefox only. Whether it’s worth trying depends on what you want to keep private and which apps you use.
Firefox sends your browsing traffic through a secure proxy server, an intermediary that replaces your IP address with its own before connecting to a website. That makes it harder for sites to use your IP address to estimate your location or connect your visits.
It also helps hide which sites you visit from the operator of a shared Wi-Fi network. If you’re researching a medical condition on a relative’s internet connection, for example, that adds privacy from whoever manages the network.
HTTPS, the encryption already used by most websites, protects information traveling between your browser and a site. The proxy adds protection by concealing your IP address from the destination and your browsing destinations from the local network.
Coverage follows the browser. Reading email in a Firefox tab falls within that coverage; opening a separate email app falls outside it.
Some essential Mozilla services are excluded from VPN routing so sign-in and connectivity features can work, according to the company’s built-in VPN documentation.
Mozilla says the free VPN doesn’t sell browsing data, inject advertising into your traffic or keep a record of the websites you visit.
Its Firefox privacy notice says it processes limited technical information, including connection status, browser version and device type or operating system. It also collects interaction data to understand how people use the feature and guide improvements.
Mozilla says it collects information about how the feature operates while keeping website visits and page contents out of those records.
The protection still has limits. As Mozilla puts it: “VPN doesn’t make you anonymous online or hide browsing history on your device.”
For example, signing into a shopping account lets the retailer recognize you even when your IP address changes. Cookies can also identify returning visitors. Reviewing your Firefox privacy settings can help you manage other ways you're tracked.
You’ll need a Mozilla account and access to the feature. The United States is among the supported regions, but Mozilla says the rollout is gradual. So even if you’re an eligible user, you may still have to wait.
But it is worth getting a VPN, even if you’re unsure how to start.
In an All About Cookies survey of 1,000 U.S. adults, 30% of people who don’t use a VPN said they didn’t know how to set one up. Firefox’s built-in option removes the need to find and install a separate app, though you’ll still need a Mozilla account to activate it.
To get started:
Mozilla’s Android instructions also explain how to check the icon showing that protection is active.
The unlimited allowance applies automatically for signed-in users. Check that the VPN panel displays unlimited usage.
If Firefox is already your main browser, there’s little setup involved in trying the free VPN. Leave it on while you browse and see whether you run into slow pages or repeated requests to prove you’re human.
Mozilla says those problems can happen. Its promotion details suggest switching VPN locations or turning the feature off for a troublesome site, though doing that exposes your IP address to that site again.
The unlimited offer ends at 00:00 UTC on February 1, 2027, when the 50GB monthly cap returns.
Once you use that allowance, VPN protection pauses until the next month. If you expect to keep using it, check your usage before the promotion ends to see how comfortably you’d fit under the cap.
For browsing on shared Wi-Fi, Firefox’s built-in feature could be enough. If you also want your messaging apps, games and other browsers covered, look for a free VPN with device-wide protection. More data won’t close that gap in Firefox’s coverage.
VPN that earned the only Platinum rating in a five-way independent speed and security test by Artifact Security
Historically unlocks Netflix libraries in the US, Canada, UK, and Australia with no errors
Bundles with an ad blocker, dark web monitoring, and encrypted cloud storage for a more complete privacy setup
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