User privacy is a high priority at Mozilla. Mozilla offers several products to protect your privacy online, like Mozilla VPN, Firefox Relay, and a Password Manager. Firefox also has several features to protect your privacy, like Enhanced Tracking Protection & Total Cookie Protection as an example. Any data collected is never sold, stored for a limited time, and is only used to improve the product you are using. If you don't want data collection on, you can easily disable it in settings. (Menu > Settings > Privacy & Security > Firefox Data Collection and Use) If you have any more questions, you can ask them here or consult the [https://www.mozilla.org/en-US/privacy/ Privacy Policy] or [https://www.mozilla.org/en-US/privacy/faq/ Privacy FAQ]