Mozilla is lifting the data cap on Firefox’s free built-in VPN starting today, with unlimited data scheduled through January 31, 2027. Users need to sign in with a Mozilla account to use the service, which covers web browsing inside Firefox. The offer applies to everyone using the free built-in VPN, with desktop and Android currently supported.
The free option has a narrower scope than Mozilla VPN, the company’s separate paid service: it protects Firefox browsing, while the subscription service extends protection to other apps on the device. Mozilla says support for the built-in VPN on iOS is coming soon. Regional availability can be checked through Mozilla’s Help Center, which also provides setup instructions for desktop and Android.
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On desktop, users can begin setup through the VPN icon in Firefox’s toolbar after creating or signing into a Mozilla account. Android users reach the VPN settings through the browser’s three-dot menu. Both routes guide users through setup before they switch the VPN on and begin browsing with it enabled.
Mozilla says the VPN obscures the IP address websites could otherwise use to estimate a visitor’s location or link their browsing between sites. It also lets users alter the location their connection appears to originate from. The company gives checking news from home during an overseas trip as one use for that location feature.
For people using shared Wi-Fi, Mozilla says enabling the VPN helps conceal which websites they visit from the network’s operator. The company also says Firefox neither sells browsing data nor serves ads in exchange for VPN protection. It says the service does not retain a log of visited websites.
The VPN does not provide online anonymity, and websites can still identify visitors through account logins or cookies. It also leaves browsing history on the device visible. Mozilla points users to Private Window when they want Firefox to avoid adding the sites they visit to their browser history.
Mozilla has separately expanded Firefox’s AI features through a partnership with Mistral, whose technology powers the Smart Window beta. That beta launched in France and North America, with features for complex searches, retrieving previously viewed material and drawing on sources in open tabs.
