xxxterm is a minimalist web browser with sophisticated security features designed-in (rather than through an add-on). In particular, it provides both persistent and per-session controls for scripts and cookies, making it easy to thwart tracking and scripting attacks.

In additional to providing a familiar mouse-based interface like other web browsers, it offers a set of vi-like keyboard commands for users who prefer to keep their hands on their keyboard.

The default settings provide a secure environment. With simple keyboard commands, the user can "whitelist" specific sites, allowing cookies and scripts from those sites.