Firefox Built-In VPN Offers Unlimited Data Through January 2027: What It Covers

Mozilla says everyone using the free built-in VPN gets unlimited data starting November 10 and running through January 31, 2027. Mozilla's own sources disagree by a day on the start. A Mozilla Connect post by a Mozilla employee says November 9. The blog post says November 10. This article uses the blog's date.

What actually changed​

The VPN is not new, and neither is a promotion like this one. The built-in VPN arrived in Firefox 149 in March 2026. It is free with a 50 GB monthly limit, and it masks only traffic that originates in Firefox. Mozilla ran a similar unlimited-data period from mid-June through the end of August, according to heise.

So this is a temporary removal of a cap on an existing feature. It is not a new product. Mozilla's Connect post says the usual cap is 50 GB, and that the cap returns at 00:00 UTC on February 1, 2027. Mozilla says Firefox will remind users before the offer ends. One outlet, gHacks, noted that Mozilla hadn't said what the limit would be after the offer ends. The Connect post does say the 50 GB limit returns, so treat that as Mozilla's stated plan.

Who qualifies​

• Platforms: Firefox on desktop and Android. iOS is described as coming soon.
• Account: You must be signed in to Firefox with a Mozilla account. Mozilla Connect says nothing else needs turning on. If you're signed in, the unlimited allowance applies automatically and the VPN panel shows usage as unlimited.
• Region: Availability depends on where you are. Mozilla points users to its Help Center for the regions that currently support the feature.

How to turn it on​

• Sign up for a Mozilla account if you don't have one.
• On desktop, select the VPN icon in Firefox's toolbar. On Android, open the three-dot menu and go to Settings > VPN.
• Follow the setup prompts, turn the VPN on, and browse.

If it doesn't work​

A Mozilla Connect thread offers some practical checks. These come from a community member there, not from Mozilla's announcement, so treat them as unofficial.

• Confirm your country is on the Help Center's list of supported regions.
• Open about:preferences#permissionsData and make sure the option that lets Firefox improve features between updates is enabled.
• Confirm you're signed in with a Mozilla account.
• Open about:policies and look for anything that disables the VPN. This matters on company-managed PCs, where administrators may have locked the feature down.

For individual sites that misbehave, Mozilla's own advice is to try another VPN location, refresh the page, or turn the VPN off for that site. Mozilla says websites may load slowly, show errors or ask for extra verification with a VPN on, as they do with any VPN.

One more gripe from the same thread: a user noted that the VPN panel doesn't visibly announce the unlimited status. If you're hunting for a data counter, that may be why you can't find one.

What it does and doesn't do​

Mozilla's claims, which it hasn't backed with an independent audit:

• It makes it harder for websites to use your IP address to work out where you are or to link your visits.
• Mozilla says Firefox doesn't sell your browsing data, interrupt you with ads, or keep a record of the sites you visit.
• On shared Wi-Fi, it helps hide the sites you visit from whoever runs the network.

The limits matter more for IT readers:

• It doesn't make you anonymous or hide browsing history on your device. Websites can still recognize you through cookies or account sign-ins.
• It covers only browsing within Firefox. For other apps, Mozilla points to Mozilla VPN, a separate paid service.
• Mozilla's Connect post describes it as a proxy for Firefox traffic. It adds an IP-privacy layer on top of the HTTPS encryption most browsing already has.
• Mozilla's Connect post lists essential Mozilla services as excluded from VPN routing. These support sign-in, reconnection and public Wi-Fi login screens. So "everything in Firefox" is not strictly literal.

For Windows users, this means Edge, Teams, Outlook, Windows Update and everything else on the machine stay outside the tunnel. In an enterprise, it is also not a substitute for a managed VPN or zero-trust access.

Is it "too late" against Chrome and Edge?​

The headline asks that question. The evidence doesn't answer it. Statcounter's October 2026 worldwide figures put Chrome at 68.79%, Safari at 16.59%, Edge at 5.36% and Firefox at 2.57%. Those numbers show the size of the gap. They don't show why people choose a browser, or whether a promotion changes that choice.

TechRadar presents the offer as Mozilla fighting back. Mozilla's own announcement frames it as a holiday gift for travel and shopping. Both can be partly true, but no source I found shows people switching.

Two factors cut against the "too late" framing:

• The offer is time-limited and reverts to a 50 GB cap. That is generous for casual browsing, but heavy streaming could hit it.
• Browser choice usually follows sync, extensions, work-managed profiles and defaults. A VPN toggle is one factor among many.

A fair read is that the offer is a useful, low-cost privacy feature for existing and curious Firefox users. It is a weak bet to move market share on its own.

Practical takeaways​

• Casual users: It's worth enabling on hotel or airport Wi-Fi. It is browser-only protection.
• Admins: Check about:policies on managed devices if users report the VPN is missing. Decide whether a consumer-grade browser proxy fits your policy at all.
• Anyone relying on it long term: Plan for February 1, when the cap returns.

Correction (November 12, 2026): The image caption originally said the unlimited-data offer runs until March 31, 2027. Mozilla's announcement puts the end of the offer at January 31, 2027, with the usual 50 GB monthly limit returning at 00:00 UTC on February 1, 2027. The caption has been corrected.