Download SmartPSS (Dahua’s desktop client) instead. It has the same interface but works natively on Windows without breaking Chrome. If you must use a browser, switch your NVR to H.265/H.264 streams via rtsp:// and use VLC media player. Final Verdict Do not download the Dahua Web Plugin for Chrome. It is a technically dead product that forces dangerous security compromises. If a seller or installer tells you to "just install the plugin," they are 5–10 years out of date. Demand an NVR that supports HTML5/WebRTC or use the dedicated desktop app.