WebRTC IP leak protection
What it does
Stops sites from seeing this device’s local IP address during a call.
What it doesn’t
It does not hide the public IP address your provider assigns you. Some video calls fail until you turn it off. A VPN is still what hides the public address.
Clean tracking links
What it does
Strips a fixed list of tracking parameters, such as utm_source, fbclid, gclid and msclkid, from pages you open. The page still loads. On YouTube and Spotify, a share link also loses si.
What it doesn’t
It does not change other requests. Ordinary parameters such as ref and id stay. Turn it off for a site when a link breaks. That choice covers the site’s subdomains.
Fingerprinting protection
What it does
Blends in. Canvas, WebGL, offline audio, processor count, device memory and font checks are nudged toward common values, per site. A font the page provides itself is left alone. Local Font Access behaves as if you never granted it.
What it doesn’t
It does not invent a random fingerprint, and it does not make you anonymous. Live audio, very large canvases and text measurement stay as they are, so a site can still guess some fonts. It can also break a site. Turn it off for that site only. www.example.com and example.com are different sites.
Browser fingerprinting, explained
Block third-party cookies
What it does
Blocks cookies set by other sites. The site you are visiting can still set its own.
What it doesn’t
The browser may already block these, or a policy may lock the setting. After you interact with an embedded site, the Storage Access API can still grant it cookie access.
Global Privacy Control
What it does
Tells sites you don’t want them to sell or share your activity. It sends the Sec-GPC header and sets the flag pages can read.
What it doesn’t
Sites and ad networks can ignore it. A worker started by a page may not see the JavaScript flag. This is a request, not a block.
Ad topics and measurement
What it does
Turns off Topics, Protected Audience and ad measurement where this browser has them.
What it doesn’t
An extension can turn them off. The browser rejects turning them back on. Switching Frame’s toggle off clears Frame’s choice and leaves the browser’s own default. Some browsers do not have these settings.
Hyperlink auditing
What it does
Stops the ping a link can send when you click it.
What it doesn’t
It does not stop navigator.sendBeacon, tracking pixels or scripts.
Network prediction
What it does
Stops the browser from prefetching and prerendering sites it thinks you will open.
What it doesn’t
A page can still start its own preconnect. Pages may feel a little slower.
Trim cross-site referrers
What it does
Asks the browser to send the full address only to the same site.
What it doesn’t
A page can set its own referrer policy and override this. Manifest V3 cannot rewrite a Referer header that is already on the way out. Turning this off does not strip every referrer.
Forget this site.
This one is a button, not a switch that stays on.
What it does
In the panel for the site you are on, after you confirm, it clears that site’s cookies, local storage, session storage, IndexedDB, cache storage, service workers and the HTTP cache where the browser can scope them. Subdomains seen in cookies are included. It then offers to reload. You are signed out of that site.
What it doesn’t
It does not erase history, and it does not delete data the site already stored on its servers. Chrome also clears cookies for the wider site. Open tabs drop session storage.