Video DownloadHelper offers a companion application (a separate desktop program installed alongside the browser extension) that includes conversion capabilities.
is a popular browser extension (Firefox/Chrome) that detects video streams and allows downloading. The "CoApp" companion app handles complex streams, including some DRM. video downloadhelper drm
While the extension offers a "conversion" feature that can sometimes process these files, the result is a decrypted (unprotected) file, which introduces legal complexities and quality limitations. video downloadhelper drm
If VDH fails due to DRM, users often turn to the following methods, though their legality depends on your local laws and the content's terms of service: video downloadhelper drm