naclwebplugin is a component primarily used by IP cameras and DVR/NVR systems (like those from
Before NaCl, developers used plugins like Adobe Flash, Microsoft Silverlight, and Java Applets. These offered native performance but suffered from catastrophic security failures. They ran with full user privileges, leading to constant zero-day exploits, drive-by downloads, and malware. They were also proprietary, non-standard, and often crashed the entire browser. naclwebplugin
In the late 2000s, web browsers were in a performance rut. JavaScript was slow (pre-JIT compilers like V8 had just emerged), and complex applications like video editors, CAD tools, 3D games, and scientific simulations were impossible to run in a browser. naclwebplugin is a component primarily used by IP