Due to Google Web Store policies, Video DownloadHelper for Chrome cannot download videos from YouTube. This is a policy restriction, not a technical one.
For complex tasks like merging video and audio (DASH) or converting files, you must install the Companion Application . This is free, open-source software that handles the heavy lifting the browser cannot do. How to Activate or Restore Your License Video -2021- Downloadhelper Lifetime License For Chrome
To use the current licensing system (Stripe), you must be on Video DownloadHelper version 7.5.0.0 or higher. Features of the Lifetime Premium License Due to Google Web Store policies, Video DownloadHelper
Prior to February 2021, Chrome users typically purchased licenses directly through the Chrome Web Store using Google Pay. However, Google discontinued this payment service for extensions. Due to Google Web Store policies