For videos that are DRM-protected but still failing, ensure you have the Companion App installed. The browser extension alone has limited permissions; the Companion App allows it to aggregate complex video streams (like HLS or DASH) that aren't encrypted but are structurally difficult to download.
When you attempt to download a video with DRM restrictions using Video DownloadHelper, the extension may: video downloadhelper drm
While VDH cannot "break" DRM, here is how users typically handle these scenarios: For videos that are DRM-protected but still failing,