Privacy & security

Firefox can warn you when a site you have a saved password for appears in a known data breach, so you can go and change…

Waterfox can save credit and debit card details and fill them into checkout forms for you.

Waterfox can save addresses and fill them into checkout and signup forms, so you are not retyping the same details on…

On Windows and macOS, Waterfox can automatically trust third-party root certificates installed in the operating…

Firefox shows a breach warning in the address bar's trust panel when you visit a site that has appeared in a known data…

When you type a web address, your browser has to look up the IP address behind it.

Waterfox tries to use HTTPS instead of unencrypted HTTP whenever a secure connection is available.

This article applies only to Waterfox desktop on Windows.

These instructions are intended for experienced Waterfox users.

Enhanced Tracking Protection (ETP) limits known trackers and other scripts that can follow activity across websites.

Coming up with a unique password for every account is the part of good password hygiene that people give up on first.

Global Privacy Control (GPC) tells the websites you visit not to sell or share information about your browsing session…

Waterfox containers separate browsing activity into color-coded tabs for activities such as banking, work and personal…

HTTPS-Only Mode forces every connection to use HTTPS.

Enhanced Tracking Protection (ETP) blocks known trackers and limits cross-site data.

This article explains how to choose which Waterfox extensions can run in Private Browsing windows.

Waterfox blocks or upgrades insecure resources on pages that are supposed to use a secure HTTPS connection.

Resist Fingerprinting is an advanced privacy feature that limits or standardizes information websites can use to…

Screen sharing lets a website receive a live video of a window, browser tab or screen that you select.

A TLS certificate proves two things about a site whose address starts with https: that whoever runs it controls the…

Cookies are small pieces of data that a website asks the browser to store.

A Primary Password encrypts the key that protects your saved logins.

Waterfox includes a built-in blocker for ads, trackers, pop-ups, overlays and other unwanted requests.

A Waterfox private tab keeps its site data separate from ordinary tabs without opening another window.

Waterfox Ultra Protection sends DNS lookups through Oblivious HTTP.

The Do Not Track (DNT) header asked websites not to track you.