Go to Settings > Security > Unknown Sources (or Install unknown apps on newer Android). Toggle on permission for your browser or file manager.
Whether you are a casual viewer looking to save data or a dedicated archivist preserving your favorite moments, an exclusive downloader is the ultimate companion for the KissKh platform.
When you open the app for the first time, it will ask for "Files and Media" permission. Grant this; it is required to save videos to your Movies/KissKH folder.