With assistance from the United States Computer..Emergency Response Team (US-CERT), we ve created this slideshow to help you configure Mozilla s Firefox Web browser to stay secure and safeguard your privacy while surfing. Some menu options may vary between versions of Firefox, so you should adapt the steps below as appropriate. In some cases, these configuration settings may interfere with normal usage of some applications. In 2019, cybercrime increasingly went mobile with everything from Apple iPhone jailbreaks and rogue Android apps to 5G and mobile-first phishing dominating the news coverage.
Source: https://threatpost.com/how-to-configure-firefox-for-secure-surfing/91729/