Older versions like the 5.x series are often sought out because they: Lightweight:

: Can be installed directly on a flash drive, allowing you to carry your downloaded "offline web" and the browser itself to any Windows computer without needing local installation.

Beyond simple convenience, offline browsers are indispensable tools for digital preservation. The web is ephemeral; pages disappear, and links rot. By creating a "snapshot" of a site, these browsers allow historians and legal professionals to preserve the state of a website at a specific moment in time. Furthermore, browsing offline eliminates the risks of trackers, scripts, and "malvertising" that plague live navigation, providing a sandboxed environment for sensitive data analysis. Conclusion