Is Windscribe - Free VPN and Ad Blocker safe?

Low risk

Windscribe routes browser traffic through its VPN proxy and injects content scripts on all pages to block ads, trackers, and spoof geolocation.

The extension intercepts all network requests via the browser proxy API and tunnels them through Windscribe's servers when the VPN is active. Content scripts run on every page to suppress ads and trackers and to override geolocation and language signals. A hardcoded client authentication secret in the bundle allows any reader of the source to generate valid API credentials for Windscribe's REST endpoints.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Windscribev3.4.14.4Firefox Add-ons
21Risk
Who publishes it

Windscribe - no other listings under this identity

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Windscribe

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.4.14.4. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • Route all of your browsing through a server of its choosing

    proxy

  • See, disable and uninstall your other extensions, including your security ones

    management

  • See the address and title of every tab you have open

    tabs

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

  • Act on the current tab, but only after you click the extension

    activeTab

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Add items to the right-click menu

    contextMenus

  • Change your browser's privacy and security settings

    privacy

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Show you desktop notifications

    notifications

  • Read and change cookies, including the ones that keep you signed in

    cookies

browserSettings

Where it sends data

Destinations our analysis observed Windscribe - Free VPN and Ad Blocker contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • api.windscribe.com

    Windscribe - Free VPN and Ad Blocker sends data to api.windscribe.com. No other extension we have analyzed sends data here.

Updated 2 November 2026amo-697223