Mozilla announced on November 10 that it is temporarily lifting the monthly data cap on the VPN feature built into its Firefox web browser. The offer runs from that day through January 31, 2027. Normally, usage stops once the 50GB monthly limit is reached until the cap resets at the start of the following month, but during this period the service can be used without limit.
A VPN (Virtual Private Network) is a technology that builds a virtual private line over the internet, routing traffic through an encrypted path to mask the originating IP address and make it harder to infer location or track behavior across sites. Firefox’s built-in VPN was introduced with “Firefox 149,” released in March 2026, initially rolling out in the United States, the United Kingdom, Germany, and France, and is now available in Japan as well.
The feature is available on the desktop and Android versions of Firefox, with the iOS version slated for support soon. Use requires signing in with a Mozilla account; on desktop, users select “VPN” from settings or the toolbar, while on Android they enable it from “VPN” within the menu’s settings. It cannot be used in environments where enterprise policies are applied.
Mozilla said the aim of the measure is to let users enjoy the year-end and New Year holidays, trips home to see family, and the shopping season with peace of mind. According to the company’s announcement, “Whether you’re heading home to see family this winter or taking a well-earned break before the year ends, we want you to be able to use the internet with confidence,” explaining that simply signing in with a Mozilla account strengthens privacy across shopping, travel planning, everyday browsing, and other situations.
| Item | Details |
|---|---|
| Announcement date | November 10, 2026 (local time) |
| Unlimited period | November 10, 2026 – January 31, 2027 |
| Normal cap | 50GB per month (service stops until the start of the next month once exceeded) |
| Supported environments | Desktop version, Android version (iOS version planned soon) |
| Conditions for use | Sign-in with a Mozilla account |
| Exclusions | Environments with enterprise policies applied |
Note: The normal cap and supported environments are based on Mozilla’s support information and announcement details.
In terms of functionality, using the VPN makes it harder for network administrators to see which sites a user accesses when on shared Wi-Fi, keeping browsing history private. Because the originating region can be switched, it can also be used to access news sites aimed at one’s home country while traveling abroad.
On the other hand, even with the VPN enabled, browsing history remains on the device, and websites can still identify users through cookies or account logins, so it does not guarantee fully anonymous access. In addition, the built-in VPN protects only traffic within Firefox; protecting traffic from other apps on the device as well requires subscribing to the paid service “Mozilla VPN.”
Firefox has long been offered as an open-source browser, and amid continued competition with Chrome and Safari, it is strengthening a strategy of positioning privacy protection as a point of differentiation. The move to build VPNs into browsers is spreading among other companies as well, and this measure—free and with unlimited data—can be seen as a limited-time promotional push aimed at winning users during the year-end shopping season.
The impact on the market is expected to be limited, but for providers that sell VPN services, the free availability of a browser-standard feature could change the competitive landscape. For users, it expands the options available when using public Wi-Fi or connecting while traveling. Because the 50GB monthly cap returns after the period ends, it should be noted that this is not a permanent free unlimited offering.