From the Security tab, you can set up alerts for signs of malicious activity. Check the boxes for a warning when sites try to install add-ons and for blocking phishing and attack sites.
Many web browsers will offer the ability to store login information. In general, US-CERT recommends against using such features. Should you decide to use the feature, ensure that you use the measures available to protect the password data on your computer. Under the Security category, the Passwords section contains various options to manage stored passwords, and a Master Password feature to encrypt the data on your system. We encourage you to use this option if you decide to let Mozilla Firefox manage your passwords.
