The free VPN add-on for Firefox
A lightweight add-on that encrypts your browser traffic and lets you switch country instantly — without touching your system settings.
- Store
- Firefox Add-ons
- Price
- Free
- Locations
- 50+
youtube.com
Privacy that fits Firefox
Browser-only tunnel
Only Firefox traffic goes through the VPN, so your other apps keep their normal connection and full speed.
WebRTC leak blocking
Firefox exposes local IPs through WebRTC by default. The add-on shuts that channel down.
Anonymous mode
Clear cookies and browsing history for the current session in one click, without touching your saved logins.
Install in under a minute
- 01
Open the SandVPN page on addons.mozilla.org and click "Add to Firefox".
- 02
Confirm the permissions, then pin the icon to your toolbar.
- 03
Pick a country in the popup and you're protected — no signup needed.
Extension or full app?
Browser extension
This pageEncrypts what happens inside the browser. It installs in seconds, needs no system driver, and leaves the rest of your machine on its normal connection.
- Ready in under a minute, no reboot
- Your other apps keep full local speed
- Switch country per browsing session
Desktop & mobile apps
Protects the whole device. Every program - other browsers, games, download clients, background services - travels through the tunnel.
- Covers every app on the device
- Kill switch guards the whole system
- Stays connected in the background
What people actually use Firefox for
Public Wi-Fi
Hotels, airports and cafes run open networks where anyone on the same access point can watch unencrypted traffic. The tunnel closes that window.
Catalogues abroad
Streaming libraries change from one country to the next. Connect where the content lives and watch it in the browser you already have open.
Prices without profiling
Fares and quotes often shift with the region they think you are in. Comparing from a neutral country tells you what a page really costs.
Firefox - frequently asked questions
Is SandVPN for Firefox really free?
Yes. The free tier has no time limit, no data cap and no account requirement - install it and connect. Premium adds every location, top speeds and the rest of the privacy suite.
Will it slow down my connection?
Every VPN adds some latency, since traffic takes a longer path. We keep it small by picking the closest fast server for you; on a normal home line HD streaming stays smooth.
Do I need an account to use it on Firefox?
No. You can install and connect without signing up. An account only becomes useful when you go Premium or want your settings to follow you across devices.
How do I remove it?
Uninstall it like any other software from your browser or system, and the tunnel disappears with it - no leftover configuration and no system settings to undo.
Get SandVPN for Firefox
Free to start, no account needed. Premium unlocks every location and the full privacy suite.
Add to Firefox — free